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A level study sets > pe - anatomy > Flashcards

pe - anatomy Flashcards

1
Q

Inspiratory controls

A
  • Chemoreceptors
  • Thermoreceptors
  • Proprioreceptors
  • SCM/Scaleness
  • Phrenic nerve
  • Diaphragm
  • External inter controls
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2
Q

Expiritory

A
  • Baroreceptors
  • Internal intercostals
  • Intercostal nerve
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3
Q

Haemoglobin

A
  • Protein
  • 4 O2 molecules at a time
  • High PO2 associates with O2
  • Creates oxyhemoglobin
  • Low PO2 disassociates with O2
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4
Q

Saturation

A

Maximum amount

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5
Q

Association/Dissociation

A

Association: Haemoglobin gains O2
Disassociation: Oxyhemoglobin gives away O2

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6
Q

Alveoli

A

Why is if good for gaseous exchange?
- One cell thick - fast diffusion pathway
- Blood supply from capillaries - maintains steep diffusion pathway = more diffusion
- Large SA - increased diffusion

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7
Q

Gaseous exchange

A

Movement of gases across membrane - diffusion

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8
Q

Diffusion

A

Movement of substance - area of high to low concentration

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9
Q

Diffusion gradient

A

Difference in concentration between the high area and the low area

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10
Q

Slow oxidative fibres (Type 1)

A
  • Produce low force/high resistance to fatigue
  • Contain myoglobin/mitrochondria
  • Aerobic
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11
Q

Fast oxidative glycolytic (Type 2)

A
  • Produce midforce/mid-resistance to fatigue
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12
Q

Fast glycolytic (Type 2b)

A
  • Produce high force/low resistance to fatigue
  • Contains phosphocreatine
  • Anaerobic
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13
Q

Internal respiration

A

Between blood and muscles:
O2 - given the muscles via blood
CO2 - taken away from muscles by diffusion (high PO2)

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14
Q

External respiration

A

Between blood/lungs (alveoli):
Deoxygenated blood from muscles - taken to the lungs to become oxygenated by diffusion (low PO2)

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15
Q

Vasomotor Control Center (VVC) during exercise

A
  • In muscle cells, sympathetic stimulation - decreased
  • Arterioles and pre-capillaries sphincters dilate (increasing blood flow to the muscles)
    MUSCLES - LOTS OF BLOOD
  • Leading to organs, sympathetic stimulation - increased
  • Arterioles/pre-capillary sphincters constrict
    (decreases blood flow to the organs)
    ORGANS - LACK BLOOD
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16
Q

Vasomotor Control Center (VVC) during recovery

A
  • In muscle cells, sympathetic stimulation - increased
  • Arterioles/pre-capillaries sphincters constrict (decreasing blood flow to muscles)
    MUSCLES - LACK BLOOD
  • Leading to organs, sympathetic stimulation - decreased
  • Arterioles/pre-capillary sphincters dilate
    (increases blood flow to the organs)
    ORGANS - LOTS OF BLOOD
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17
Q

Respiratory control center (RCC)

A
  • Centre receives information from neurons
  • Sends direction to change rate of respiratory muscle contraction
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18
Q

Inspiratory control/Expiritory control

A

IC
- Control centre within RRC
- Stimulates respiratory muscles to control/rest (during exercise and at rest)

EC
- Control centre within RRC
- It is inactive at rest but stimulate additional muscles to work during exercise

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19
Q

Diffusion of O2

A

Internal diffusion of O2:
- PO2 is of O2 high in capillaries
- PO2 in muscles is low
- O2 diffuses across capillary membrane down gradient

External diffusion of O2:
- PO2 of O2 is low in capillaries
- PO2 in alveoli is high
- O2 moves by gaseous exchange from alveoli to the blood down diffusion gradient

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20
Q

Diffusion of CO2

A

Internal diffusion of CO2:
- PO2 of CO2 is low in capillaries
- PO2 in the muscles is high
- The CO2 diffuses across capillary membrane down diffusion gradient

External diffusion of O2:
- High PO2 of CO2 blood returning from muscles
- Alveoli has low PO2 of CO2
- CO2 diffuses across capillary membrane into alveoli and it breathed out lungs

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21
Q

Breathing rate

A

Number of breaths per minute

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22
Q

Tidal volume

A

Volume of air in and out a normal breath

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23
Q

Minute ventilation

A

Volume of gas in and out in one minute

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24
Q

Breathing values calculation

A

Minute Ventilation (VE) = Tidal Volume (TV) x Breathing Rate (F)

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25
Q

Venous return

A

During rest: blood returns to heart easily
During exercise: Demand for oxygenated blood increases, requiring greater volume/speed of venous return

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26
Q

GET MY RED STUFF PUMPING

A

Gravity
Muscle pump (exercise only)
Respiratory pump (exercise only)
Smooth muscle
Pocket valve

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27
Q

Mechanics of breathing at rest

A

Inspiration:
1. Diaphragm lowers and contracts (External intercostals contract)
2. Diaphragm flattens- Ribs/Sternum up and out
3. Thoracic cavity volume increases
4. Lung air pressure decreases below atmospheric air
5. Air rushes into lungs

Expiration:
1. Diaphragm relaxes (External intercostals passively relax)
2. Diaphragm pushes upwards - Ribs/Sternum move down and in
3. Thoracic cavity volume decreases
4. Lung air pressure increases above atmospheric air
5. Air is exhaled

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28
Q

Mechanics of breathing during exercises

A

Inspiration:
1. Diaphragm lowers and contracts FASTER (External intercostals contract)
2. Diaphragm flattens WITH MORE FORCE- Ribs/Sternum up and out
3. Thoracic cavity volume increases MORE
4. Lung air pressure decreases FASTER below atmospheric air
5. MORE Air rushes into lungs

Expiration:
1. Diaphragm relaxes (External intercostals passively relax)
2. Diaphragm pushes upwards FASTER - Ribs/Sternum move in and down
3. Thoracic cavity volume decreases FASTER
4. Lung air pressure increases FASTER above atmospheric air
5. MORE Air is exhaled, INCREASED breathing rate

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29
Q

Venous returns mechanicsms

A

Gravity: Blood from above heart is aided by gravity to return back to heart

Muscle Pump: (Only during exercise) veins are situated between muscles, muscles contract and relax to help to squeeze blood towards heart

Respiratory Pump: (Only during exercise) you breath faster and deeper during exercise, abdomen pressure helps to push blood back to heart

Smooth muscle: Layers of smooth muscle in veins helps to push blood towards heart

Pocket valves: One way valves to prevent back flow

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30
Q

Resistance

A

What can be used as resistance?
- Free weights
- Body weight
- Bands etc.

Resistance: Based on % of performers one rep max
Repetitions: Time exercise is repeated/lifted
Sets: Series of repetitions and rest periods
Work to rest ratios: Volume of relief to work

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31
Q

Factors affecting VO2 max

A

Physological make-up : Efficiency of respiratory and cardiovascular system, more haemoglobin means more blood can be transported

Age: From early 20s (peak) VO2 max declines 1% yearly

Gender: Females have between 15 and 30% lower V02 max than same group of males

Training: Completing aerobic training will increased VO2 max by 10-20%

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32
Q

Plyometrics

A
  • Series of explosive movements at speed
  • Muscles generate greater force of contraction (Creates concentric contraction after an eccentric one)
  • Eccentric contractions stores elastic energy to create more powerful concentric contraction
  • Stretch reflex is initiated and more motor units are recruited - prevent working muscles being overstretched
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33
Q

Cooper 12 minutes run test (for VO2 max)

A
  • Cones set up 5 metres apart
  • 400m track
  • Run has far as possible in 12 minutes
  • Distance compared to VO2 max table

Advantages:
- Cheap/quick to do
- Easy set up
Disadvantages:
- Can be boring/tedius
- Inaccurate (Doesn’t consider gender)

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34
Q

Direct gas analysis (for VO2 max)

A
  • Run for 10 minutes
  • Every minute, incline is increased until exhaustion
  • Computer analyses O2 inspired/expired during test

Advantages:
- Very accurate
- Shows progress easily
Disadvantages:
- Requires specialist equipment (expensive)
- Not real life environment

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35
Q

Queens’s collage step test (for VO2 max)

A
  • “Step up step down”
  • Test resting HR per min and before test
  • Take HR after the test

Advantages:
- Compares to gender
- Requires little equipment
Disadvantages:
- Step remains the same height
- Can be tedious
- Only sub max test

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36
Q

Multistage fitness test (for VO2 max)

A
  • Participants run 20m shuttles back and forth
  • Speed of bleeps increase every 8 bleeps (160m)
  • Level reached is compared to table

Advantages:
- Easy to do/set up
- Lots of people at once
Disadvantages:
- People may cheat of lie about that they achieved

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37
Q

Training zones

A

Identify and maintain correct intensity training in order to gain adaptations

80-90% - Anaerobic Zone
50-70% - Aerobic Zone
-50% - Low intensity Zone (Unlikely to progress cardiovascular or muscular capability)

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38
Q

Maximum heart rate

A

Maximum times a person’s heart can contract in one minute. Can vary based on genetics, lifestyle, health, training and diet

Calculation: 220 - Age (estimation)

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39
Q

Types of strengths

A

Maximal: Maximal amount of force in one muscular contraction

Explosive: Maximal amount of force in one or a series of rapid muscular contractions

Endurance: Sustain repeated muscular contractions over a period of time, withstanding fatigue

Dynamic: Force applied against a resistance and the muscles change length

Static: Force applied against resistance without movement occurring

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40
Q

Factors that affect strength

A

Cross-sectional area: The greater the cross-sectional area of the muscle, the greater the strength there is a 16-30N of force per square cm of muscle

Fibre Type: Greater % of FG and FOG, the greater the strength over a short period of time. Fast twitch fibres=large motor neurones=more force in one contraction

Gender: Males have more testosterone, which makes them stronger than females. When strength is expressed per unit of cross-sectional area, this difference in gender disappears

Age: Peak strength males 18-30 females, 16-25 due to a decrease in efficiency of euro-muscular system, testosterone and elasticity which leads to a reduction in muscle mass

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41
Q

Aerobic capacity

A

Ability to respire, transport and utilise O2 to perform sustained periods of activity

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42
Q

VO2 Max

A
  • Maximum volume of O2 inspired, transported and utilised per minute during ‘exhaustive’ exercise.
  • Higher % of inspiration before fatigue = higher VO2
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43
Q

Strength adaptations

A

Muscular/Connective tissue:
- Muscular hypertrophy/hyperplasm - Increased contraction force and FG fibres
- Increased number/size of proteins and myofibres - Increased protein synthesis/myofibre thickness
- Increased tendon/ligament strength - Increased hint stability and decreased chance of injury

Neural Pathways:
- Increased recruitment of motor unit/FG/FOG fibres - Increased force of contraction - improved coordination
- Decreased inhibition of stretch reflex - Increased force from agonist and decreased force from antagonist

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44
Q

Free body Diagrams

A

Tell us:
- Where force is originates from
- Size of each force and their direction
- Allows net force to be considered

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45
Q

Weight

A

Acts downwards - gravitational force that the earth exerts on a body. Always present from the body’s COM

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46
Q

Reaction

A

Equal and opposite force exerted by a body in response to an action in N

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47
Q

Center of mass (COM)

A

Point at where a body is balanced in all directions - from where weight begins to act

Near the naval when in the anatomical position, dependant on the distribution of body mass

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48
Q

Horizontal forces

A

Double the length of reaction force arrow. If weight is equal to reaction and the body remains at rest

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49
Q

Vertical forces

A

Arrows parallel to surface.

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50
Q

Friction

A

Force that opposes motion of a surface in contact (N)

Effecting factors:
- Roughness of ground surface: Rougher = More grip
- Roughness of contact surface: Same applies^
- Temperature: Hotter ground or contact surface = more friction
- Size of normal reaction: Increased reaction force = more friction

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51
Q

Air Resistance

A

Force that opposes motion through the air (N)

Effecting factors:
- Velocity: + velocity = +air resistance
- Shape: + aerodynamic = less air resistance
- Frontal cross-sectional area: Adopting a low crouched position will reduce air resistance
- Smoothness of surface: Smoother the surface = less air resistance

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52
Q

Limb Kinematics

A
  • Study of movements and time taken to carry out the movements
  • (Reflective markers placed on the body and data is timed and transferred to digital analysis)

Advantages:
- Make changes to technique
- Examine movements causing injury
- Investigate impact of equipment on technique
Disadvantages:
- Equipment = expensive
- Lack game situation (environment controlled)
- Results don’t account for individual differences

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53
Q

Force plates

A

Platforms that measures all force applied when performers stand/step/jump on it. Measures ground reaction force vertically and horizontally

Advantages:
- Fast and accurate results
- Gait analysis - Take off/landing techniques
- Results can help plan training programmes
Disadvantages:
- Equipment is expensive
- Lab conditions make it difficult to perform techniques as the plates are too small

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54
Q

Wind tunnels

A

Chamber in which air is forced. A body is laced in the tunnel and it measures the air around them

Advantages:
- Can be used to represent game situations
- Individual pieces of equipment can be tested
- Investigate aerodynamics and new techniques
Disadvantages:
- The equipment needed is expensive
- The test cannot completely mimic the game situation as they vary

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55
Q

Stability

A

What is it? Ability of a body to resist motion and withstand force applied and return to their original position without damage

Factors effecting it:
- Mass of body: Greater the mass, greater the inertia
- Height of COM: Lower the COM the more stability
- Base of support: Greater base or number of contact points, the more stable
- Line of gravity: The more central the line of gravity is, the more stable

When is less stability beneficial:
- Changing direction: Moving the line of gravity outside of the body
- Rotating
- Range of motion

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56
Q

Force

A

Push or pull that alters the state of motion of a moving body in N

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57
Q

External forces

A

Forces that come from outside a body and act upon it

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58
Q

Net force

A

Sum of all forces acting on a body when all individual forces have been considered

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59
Q

Isometric contraction

A

Muscles contract but they remain the same length so there is no motion

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60
Q

Balanced force

A

When net force is 0, no change in motion, either at constant velocity or at rest

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61
Q

Unbalanced force

A

Net force is present, body will accelerate/decelerate or change direction

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62
Q

Effects of heat on cardiovascular system

A
  • Reduces O2 transport through the haemoglobin to the working muscles
  • Increased HR to compensate
  • Increased blood flow may lead to blood pooling
  • Increased strain on the system
  • Decrease in blood volume
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63
Q

Preparing to perform in heat

A

Pre - Athletes must acclimatise to the temperature for 14 days or more and keep hydrated
During - Pacing of exercise and clothing must be suitable and they must continue to hydrate
Post - Athletes must hydrate and cooling aids should be used e.g. ice baths

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64
Q

Thermoregulation

A

Process that allows the body to maintain core body temperature (37 degrees)

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65
Q

Thermoreceptors

A

Detect changes in body temperature

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66
Q

Cardiovascular drift

A

Upwards drift in HR during sustained steady state activity associated with an increase in body temperature. Because muscular contractions leads to more heat, this is directed to the skin

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67
Q

High humidity

A

More sweat. Rise in core body temperature, may result in the body experiencing hypothermia

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68
Q

Energy for exercise

A

Energy: Capacity to perform, work and exist

Chemical - Found in food
Potential stores - Energy stored in muscles
Kinetic - Occurs when muscles move

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69
Q

Pre-capillary sphincters

A

Ring of smooth muscle the end of the capillaries - constrict and dilate to control blood flow

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70
Q

Lumen

A

‘Hole’ in the middle of a vessel

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71
Q

Arteries

A

Carry oxygenated blood away from the heart. Thick strong elastic walls for high pressure

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72
Q

Capillaries

A

Distributed oxygenated blood from arteries to body tissues and feed deoxygenated blood from the tissues back to the veins

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73
Q

Veins

A

Carry deoxygenated blood (except from pulmonary vein) back to the heart. Large lumen and pocket valves

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74
Q

Arterioles

A

Contribute to maintaining arterial pressure. They connect blood vessels (capillaries)

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75
Q

Venule

A

Smallest veins, receive blood from the capillaries

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76
Q

Linking conduction and cardiac system

A
  1. Diastole occurs
  2. The SA node initiates an impulse which travels across the atria causing them to contract an blood is forced actively into the ventricles, this is called atrial systole
  3. The AV node then delays the impulse allowing the atria to fully contract and finish emptying
  4. The impulse is then sent along the bundle of HIS and the purkinje fibres (around the ventricles)
  5. This caused ventricles to contract (ventricular systole) and forces blood out the heart via the arteries
  6. Diastole occurs again (it repeats)
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77
Q

Sympathetic/Parasympathetic

A

Sympathetic: Stimulates HR to increase
Parasympathetic: Returns HR to resting values

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78
Q

CCC intrinsic factors

A

Body temperature:
- Exercise increases body temp
- Which increases nerve transmission
- Reduces blood viscosity
- Increases HR

Venous return:
- Increases during exercise
- Cardiac muscle stretch is increased
- Force of ventricular contraction is larger
- Stroke volume increases

79
Q

CCC Neural control

A

Proprioceptors: In the muscles, detect motor movements during exercise

Chemoreceptors: Detect increase in CO2 and lactic acid and decrease in O2 (changes in the bloodstream)

Baroreceptors: Located in the aorta, detect an increase in blood pressure

  1. Send impulses to the CCC
  2. Via sympathetic nervous system
  3. Via the accelerator nerve
  4. This increases stimulation of SA node
  5. Which increase HR
80
Q

CCC Hormonal factor

A

Adrenaline and Non-adrenaline: Both released from the adrenal glands

  • Increases force of ventricular contraction and
  • Increases spread of electrical impulses through heart
  • Hormonal control signals go straight to the SA node
81
Q

Oxygenated/Deoxygenated blood

A

Oxygenated: Blood that is saturated with O2 and nutrients

Deoxygenated:Blood that is not saturated with O2 but with CO2

82
Q

Systole/Diastole

A

Systole: The contraction phase of cardiac muscle where blood is ejected with force into the aorta and pulmonary artery

Diastole: The relaxation phase of cardiac muscle where the chambers fill with blood

83
Q

Pulmonary Systemic circuit

A

Pulmonary circuit:
- Deoxygenated blood to lungs
- Oxygenated blood to heart

Systemic circuit:
- Oxygenated blood to muscles
- Deoxygenated blood to heart

84
Q

How a motor unit works

A
  1. Brain detects stimulus
  2. Nerve impulse is conducted down axon of motor neurone (by nerve action potential) to synaptic clef
  3. Neurotransmitter is secreted in to conduct nerve impulse across gap
  4. If electrical charge is above threshold, muscle fibre will contract
  5. Happens in ‘all or nothing’ fashion - muscles will only contract if stimulus is above threshold
85
Q

Motor unit/neuron

A

Motor unit: Motor neuron and muscle fibres stimulated by its axon

Motor neuron: Nerve cell which conducts nerve impulse to group of muscle fibres

86
Q

Action potential

A
  • Positive electrical charge inside nerve and muscle cells which
  • Conducts nerve impulse down neuron and into muscle fibres
87
Q

Neurotransmitter

A
  • Chemical produced and secreted by a neuron
  • Transmits nerve impulse across synaptic clef to muscle fibre
88
Q

Joint features

A

Bursae:
- Flattened fibrous sack
- Prevents friction

Meniscus:
- Wedge of fibrous cartilage
- Improves fit at bone ends

Pad of fat:
- Fatty pad between bone/muscle
- Cushioning for fibrous capsule

89
Q

Eccentric/Concentric Isometric contractions

A

Eccentric: Muscle lengthens when contracts

Concentric: Muscle shortens when contacts

90
Q

Agonist/Antagonist

A

Agonist: Muscle responsible for cheating the movement

Antagonist: Muscle that provides resistance for coordinating movement

91
Q

Planes of movement

A

Transverse: Passes through the middle of the body, divides body into top and bottom half
Movement - Rotation

Frontal: Passes from side to side through the body, divides the body into front and back halves
Movement - Abduction/Adduction

Saggital: Passes through the middle of the body and divides the body into left and right
Movement - Flexion and extension

92
Q

Types of joint

A

Slightly moveable: Provides a bit of movement e.g. joint between vertebrae

Immoveable: No movement, it is stable e.g. joints between the cranium

Synovial: Moves freely, it’s the least stable e.g. shoulder/hip joint

93
Q

Types of bones

A

Long: Longer than they are wide e.g. Femur
Short: As short as they are wide e.g. Phalanges
Flat: Flatter the they are wide e.g. Cranium
Irregular: Don’t fit into another category e.g. Patella
Sesamoid: Short bones within a tendon e.g. vertebrae

94
Q

Appendicular/Axial

A

Appendicular: Help create movement
Axial: Protect organs

95
Q

Synovial joint key words

A

Ligaments:
- Tough band of elastic tissue
- Connects bone to bone
- Stability

Synovial fluid:
- Lubricating tissue in cavity
- Reduces friction
- Nourishes cavity

Articular cartilage:
- Covers surface of the articulating bone
- Absorbs shocks
- Allows movement

Joint Capsule:
- Fibrous sack - inner synovial membrane
- Encloses/strengthens joint
- Secretes synovial fluid

96
Q

Types of joints

A

Condyloid: Allows you to flex and extend joint and move side to side e.g. wrist

Ball and Socket: Made of a round end of one joint that fits into another, allows movement in almost every direction e.g. shoulder

Hinge: Allows flexion and extension in only one direction e.g. knee

Pivot: Allows only rotation at the joint e.g. Joint between the radius and the ulna

Gliding: Allows movements between flatter surfaces e.g. joints between vertebrae

97
Q

Functions of the skeleton

A

Protection: For organs
Blood cells: transports O2, fights disease, blood cells are produced in the bone marrow
Calcium/Phosphurus: To increase bone density and transmit signals
Movements: Occurs at the joint due to tendons allows range of movement (flexibility)
Shape: Gives us our general structure

98
Q

Heart values

A

Heart rate: (BPM)
Number of times the heart beats per minute

Stroke volume: (ML)
Volume of blood ejected from the heart (ventricles) in each beat

Cardiac output: (L/MIN)
Volume of blood ejected from the heart in one minute

Cardiac Output = Stroke volume x Heart Rate

99
Q

Inertia

A

Resistance of a body to change it’s state of motion whether at rest or moving

100
Q

Velocity

A

Rate of change in displacement often used to describe speed in the direction of travel

101
Q

Force

A

A push or pull that alters the state of a body

102
Q

Momentum

A

Quantity of motion possessed by a moving body

103
Q

Acceleration

A

Rate of change in velocity

104
Q

Action force

A

Generated and applied by a body to the ground/object

105
Q

Reaction force

A

Equal and opposite force that is generated by the ground or object back to the athlete

106
Q

Newtons 1st law

A

A body will continue in a state of rest or uniform velocity unless acted upon by an external or unbalanced force

107
Q

Newtons 2nd law

A

A body’s rate of change in momentum is proportional to the size and direction as the force is applied

108
Q

Newtons 3rd law

A

For every force applied to a body, there is a equal and opposite reaction force

109
Q

Biomechanics

A

Study of human movement and the effect of force and motion on a performer

  • Prevent injury
  • Improve/Analyse performance
  • Maximise efficiency/technique
  • Equipment to satisfy activity demand
110
Q

Periodisation

A

Organised division of training into specific blocks, each block is known as a cycle and has a specific goal and time frame

111
Q

Phases

A

Preparation phase: Pre-season
- General conditioning
- Overload to increase intensity
- Focus of training session

Competition phase: Competition-season
- Training load reduces with rest days
- Fitness is maintained but avoid injury
- Strategies and tactics are discussed

Transition phase: Post-season
- Active rest/recuperation
- Low intensity work ready for preparation again

112
Q

Factors that effect flexibility

A

Type of joint: Ball an socket joint

Length of connective tissue: Longer connective tissue = wider range of flexibility

Age: Older = less flexibility due to a decrease (elasticity)

Gender: Oestrogen allows more flexibility in females

Benefits of flexibility:
- Reduced risk of injury
- Improved posture/alignment
- Performance enhancement
- Reduction of DOMS

113
Q

Types of flexibility

A

Flexibility: Range of movement at a joint

Dynamic: Range of movement with reference to movement e.g. split jump

Static: (active and positive) Range of movement without reference to movement
Static active: Completing a movement voluntarily to move a joint just beyond it’s point of resistance and requires strength of opposing muscle groups to hold a limb in place
Static positive: Assistance by a partner/aid to move the joint just beyond its point of resistance

114
Q

Chronic Injuries

A

Hard Tissue: (stress fracture)
Tiny crack in the bone surface, usually caused by fatigue caused by overtraining/intensity overload

Soft Tissue: (shin splints)
Overuse of the tibias anterior.Most common type is MTSS caused by being overweight/poor footwear/equip

Soft Tissue: (Tendinosis)
Deteration of the tendon collagen as a result of chronic overuse, can be a result of injuries not being given time to heal. Symptoms - Burning, aches, sting

115
Q

Accute Injuries

A

Hard tissue: (Fracture)
Particular complete break, result of direct/indirect force resulting in pain, deformity, swelling

Hard tissue: (Dislocation)
When a bone is displaced from its original position. Pain, swelling, loss of movement.

Soft tissue: (Contusion/Haematoma)
Contusion is an area of skin/tissue where blood vessels have ruptured, deep tissue damage is haematoma - localised congealed bleeding from the tissue

Soft tissue: (Strain)
Damage (overstretch/tear) to the muscle fibres/tendon. Usually occurs during dynamic/explosive movements

Soft tissue: (Sprain)
Damage (Overstretch/tear) to the ligaments. Often as a result of a twist or false beyond range of movement

Soft tissue: (Concussion)
Traumatic brain injury resulting in disturbance (headaches/loss of balance/nausea)

116
Q

Types of treatments

A

Physiotherapy: Physical treatment of injuries or disease using methods e.g. mobilisation, massive, postural training and exercise therapy

Non-steroid, anti inflammatory drugs: Medication taken to reduce inflammation temperature and pain

Massage: Physical therapy used for injury prevention and soft tissue injury treatment

Heat Therapy: Applying heat to an area before training (increasing blood flow)

Cold Therapy: Applying ice to the injury (reduces swelling)

Contrast therapy: Applying hot and cold

Arthroscopy: Minimally invasive procedure to both examine and to repair damage within a joint

Surgery: Open-surgery

117
Q

Rehabilitation

A

Process of restoring full function after an injury has occurred

Aims
- Restore strength
- Restore endurance
- Restore Flexibility
- Restore Speed

Early Stage: gentle exercise, encouraging the damaged tissue to heal
Mid-stage: Progressive overload of the connective tissue and bones to develop strength
Late Stage: Functional exercise to ensure the body is ready to return to training

118
Q

SALTAPS

A

For immediate response to injury

S- Stop: Stop the game and observe the injury
A- Ask: Ask questions about it e.g. when, where?
L- Look: Search for signs e.g. swelling/bruising
T- Touch: Palpate the area to identify painful regions
A- Active Movement: See unassisted movement
P- Passive Movement: Move it - range of movement
S- Strength Test: Ask them to send/lift/bare weight

119
Q

6Rs

A

For concussion

  1. Recognise: Should be aware of the symptoms/signs
  2. Remove: If a player has/is suspected of having concussion they must be removed immediately
  3. Refer: To a qualified health professional
  4. Rest: From exercise until they are symptom free and should have company for the first 24 hours
  5. Recover: Must be fully ready/ symptom free, adults must have one week out, two for children
  6. Return: Written authorisation and complete graduated return to protocal
120
Q

PRICE

A

For soft tissue injuries

P- Protect: From further injuries
R- Rest: For 2/3 days, may need crutches
I- Ice: To help reduce swelling for 15-20 minutes
C- Compress: With elasticated bandaged etc.
E- Elevate: Above heart level to keep supported

121
Q

Breakdown of ATP

A
  • ATP has three phosphate molecules
  • ATPase takes one of them (leaving just two)
  • This causes a release of energy (exothermic)
  • This changes ATP into ADP
  • The store of ATP in the muscle cell is exhausted quickly (2-3 seconds)
122
Q

ATP-PC System

A

Type: Anaerobic
Fuel: Phosphocreatine (PC)
Site: (Muscle) Sarcopasm
Enzyme: Creatine Kinase (CK)
Yield: 1:1
Process: Phosphocreatine is broken down into phosphate and creatine and energy is released
Products: None

Advantages:
- Simple compound so rapid reaction to break it down
- Doesn’t require O2 so it is fast. No by-products
- Provides high intensity explosive energy
- Fuel (PC) is stored in the muscles - easily available
- PC is quickly resynthesised (No delay)
Disadvantages:
- Small amounts of ATP/PC stored in muscles and cells
- Provides energy to resynthesise ATP for 8-10 seconds
- Leads to rapid fatigue after 8-10 seconds
- Low ATP yeild

123
Q

Glycolytic System

A

Type; Anaerobic
Fuel: Glycogen
Site: (Muscle) Sarcoplasm
Enzyme: PFK
Yield: 1:2 ATP
Process: Glycogen>Glucose>Pyruvic acid>Lactic acid
Products: Lactic acid
Intensity: High Intensity
Duration: 10 seconds to 3 minutes

Advantages:
- Large glycogen stores (Muscles/Liver/Blood)
- Resynthesise 2 ATP. No delay (O2 not needed)
- LA can be recycled and used for fuel production
- Provides energy quickly for high intensity
- GPP and PFK activated due to decrease in PC
Disadvantages:
- Low yield, recovery can be lengthy
- Creates fatigue and produces lactic acid
- Not as fast as ATP-PC system
- Reduces pH which inhibits enzyme activity
- Stimulates pain receptors

124
Q

Aerobic system

A

Type: Aerobic
Fuel: Glycogen
Site: Mitochondria
Enzyme: PFK/GPP
Yield: 38:1
Process: 3 stages
Intensity: Moderate-Low
Duration: 3+ Minutes

Advantages:
- Large potential glycogen and FFA stores avaliable/large food stores
- Efficient ATP resynthesis (38)
- There is no fatigue
- Good for endurance
- Lasts forever is fuels are replaced
Disadvantages:
- Delay for O2 delivery/slow re synthesis
- Limited to sub-maximal work
- Slow to metabolise, takes a while to engage
- Complex reaction and recovery

125
Q

Aerobic system method

A

Glycolosis
1. Glucose->Pyruvic acid (PFK catalyses)
2. Releases 2 ATP
3. O2 is sufficient/pyruvic acid->lactic acid
4. Link reaction to produce acetylCoA
5. Catalysed by COE enzyme A
6. Allows access to mitochondria
Krebs
7. AcetylCoA and oxaloacetic combine
8. Forms citric acid (oxidises through reactions)
9. CO2/hydrogen/energy are released
10. 2 ATP are released
ETC
11. H atoms carried through EEC by NAD and FAD
12. Splits H into ions and electrons
13. Ions = oxidised, remved as H2O
14. Electrons = carried away by NAD
15. Releases 30 ATP
16. Those carried away by FAD release 4 ATP

126
Q

Aerobic training adaptions

A
  • Increased storage of muscle/living glycogen
  • Increased mobilisation of aerobic enzymes
  • Makes use of fats earlier therefore conserving CHO
  • Prolongs aerobic threshold
  • Delays muscle fatigue/OBLA
  • Efficiency in removing lactic acid
127
Q

Energy continuum

A

All 3 energy systems are constantly working to ensure the resynthesis of ATP but at any moment one of these systems are predominant

128
Q

Advantages of increased anaerobic fitness

A
  • Increased PC and glycogen stores and increased tolerance to lactic acid
  • So delayed threshold of the anaerobic system allowing the athlete to work at higher intensity for longer
129
Q

What needs to happen to recover

A
  • ATP-PC stores replenished
  • Removal of lactic acid
  • Replenishment of glycogen stores
  • O2 levels in myoglobin replenished
  • Rehydration
  • Electrolyte imbalances adjusted
  • Muscle fibre restoration
130
Q

EPOC

A

E- Excess
P- Post
O- Oxygen
C- Consumption

The volume of oxygen consumed post-exercise to return the body to its pre-exercising state

131
Q

Projectile motion

A

An object that is propelled forward through the air by an external force

132
Q

Projectile

A

A body in free fall that is subject only to the forces of gravity (9.81ms‾²) and air resistance

133
Q

Parabola

A

Once it has left the ground it will follow a flight path called a parabola until it once more comes back down to earth.

134
Q

Parabolic flight path

A

A flight path symmetrical about its highest point caused by the dominant weight force of a projectile.

135
Q

Non-Parabolic flight path

A

A flight path asymmetrical about its highest point caused by the dominant force of air resistance on the projectile.

136
Q

Effect of intensity and duration

A

0-6s - very high intensity - atp-pc
6-30s - high intensity - ate and lactic
30s-3min - moderate-high - lactic
2-3min - moderate - LA and aerobic
>3min - low intensity - aerobic

137
Q

Threshold

A

Point where the predominant energy system being used cannot provide sufficient ATP to maintain the current intensity of exercise

138
Q

Intermittent exercise

A

Intensity alternates either during interval training session or game where a player may walk run jump etc.

139
Q

Recovery periods

A

During recovery breaks, the aerobic system is predominant O2 is used to:
- Replenish ATP and PC stores (50% in 30 seconds) (100% in 180 seconds)
- Resaturate myoglobin and haemoglobin
- Decrease level of lactic acid

140
Q

Advantages of increased aerobic fitness

A
  • Increased cardiovascular/respiratory capacity
  • More O2 can be brought into/transported to/used by muscles
  • Increased VO2 max
  • Delayed fatigue, lactic acid threshold and OBLA
  • Athlete can work at higher intensity within the aerobic system
  • Can switch to the aerobic system quicker starts to break down FFAs sooner
  • Quicker availability of O2
141
Q

Predominant energy system

A
  • Position of player
  • Size of pitch/court
  • Level of competition
  • Tactics and strategy
142
Q

Returning body to rest

A
  1. ATP stores replenished
  2. Removal of lactic acid
  3. Replenishment of glycogen
  4. O2 levels in myoglobin replenished
  5. Rehydration/electrolyte adjusted
  6. Muscle fibre restoration
143
Q

Alactacid component

A
  • Accounts for 10% of EPOC
  • Requires 1.4 litres of O2
  • 50% of ATP and PC stores are replaced in 30 seconds
  • Full restoration in 3 minutes
  • In 3 minutes, respiration remains high to continue aerobic respiration
  • Within first minute, it replenished stores of O2 within haemoglobin
144
Q

Lactacid Component

A
  • 5-8 litres of O2 required
  • Respiratory rate/depth/HR remain high to supply O2 and restore lactic acid and CO2
  • CO2 is removed as carbonic acid
  • Removal of lactic acid takes up to hour, dependant on intensity
  • Body creates more heat, increasing metabolic rate
  • Glycogen stores are replenished
145
Q

Lactic acid removal

A
  • Converted into pyretic acid, non-oxidised returns to the Krebs cycle (50-75%)
  • Converted to glycogen (10-25%) called glyconeogenesis
  • Small amounts are removed as protein urine and sweat
146
Q

Linear motion

A

Movement of a body in a straight or curved line where all parts move the same direction over the same time

Creation of linear motion: Direct force is applied to the body at the centre of mass e.g., Ski Jumping/skeleton

Key descriptors:
- Distance
- Velocity
- (De) Acceleration
- Displacement
- Speed]

147
Q

Distance-time graph

A

Rest: Line does not go up or down
Constant speed: Goes up in constant diagonal line (changing)
Acceleration: Line gradually gets steeper, more distance is covered in the same amount of time
Deceleration: Curve starts to level of, less distance is covered I the same time

148
Q

Angular motion

A

Movement of a body in a circular path about its axis of rotation, more common than linear motion

Measured: Radians 360 degrees

Creation of angular motion: Eccentric force known as torque is applied to a body outside the centre of mass, caused by an external force

149
Q

Axis of rotation

A

Longitudinal: Runs from head to toe, through the centre of mass e.g.m Spin in ice skating

Transverse: Runs from left to right, through the centre of mass e.g., Somersault in gymnastics

Frontal: Runs from front to back, through the centre of mass e.g., Cartwheel in gymnastics

150
Q

Angular motion discriptors

A

Angular distance: Total angle body turns from start to finish about an axis

Angular displacement: Smallest Ange between start and finish position about an axis

Angular speed: Rate of change in angular distance

Angular acceleration: Rate of change in angular velocity

Angular velocity: Rate of change in angular displacement or the rate of rotation

Angular momentum: The amount of motion a body or object has during rotation (how much spin)

151
Q

Moment of inertia

A

Resistance of a body to change its state of angular motion or rotation (the tighter the performer tucks, the faster they rotate)

152
Q

Angular momentum and newtons first law

A

‘A rotating body will continue to turn about its axis of rotation with constant angular momentum unless acted upon by an eccentric force or external torque’

153
Q

Air resistance and drag

A

Air resistance: Acts on a body travelling at high velocity through the air

Drag: Action a body travelling through water

154
Q

Factors affecting air resistance and drag

A

Velocity: The greater the velocity, the more the air resistance or drag, velocity however cannot be reduced

Frontal cross-sectional area: The greater it is, the larger the air resistance

Streamline and shape: More aerodynamic the body, the lower the air resistance or drag

Surface: The smoother the surface, the lower the air resistance and drag

155
Q

Projectile definitions

A

Projectile: A body launched into the air and is subject to weight and air resistance

Projectile motion: Movement of a body through the air following a curved flight path under the force of gravity

Flight path: Shows the overall distance travelled after gravity has accelerated it back to the ground

156
Q

Factors affecting horizontal distance travelled

A

Speed of release: The greater the speed of release, the greater the distance

Angle of release: Optimum angle of release is 45 degrees

Height of release: Depending on whether it is positive or negative relative release, the optimum angle of release may change

Aerodynamic factors: Bernoulli principle pr aerofoil

157
Q

Flight paths

A

Parabolic: Symmetric about its highest point
- Weight doesn’t change
- Dominant force - weight

Non-parabolic: Asymmetric about its highest point
- Weight changes e.g., shuttlecock
- Dominant force - air resistance

158
Q

Bernoulli principle

A

Creation of an additional lift force and on a projectile in flight resulting from the conclusion that the higher the velocity of airflow, the lower the surrounding air pressure

Impact: Additional loft force means the projectile will hang in the air for a longer time

Applies to:
- Javelin
- Ski jumping
- Discus

159
Q

Aerofoil

A

Curved upper surface (low pressure - air faster) and flat underneath surface (high pressure - air slower). Air is forced apart and there are different velocities above and below the shape

160
Q

Airflow diagrams

A
  • Air parts as it goes over the shape, moves at different velocities above and below the shape
  • This impacts the pressure of airflow and a pressure gradient is formed which generates additional force
  • The curved upper surface forces air flow to travel a further distance and therefore move at a higher velocity
161
Q

Resultant force

A
  • Shows sum of all force acting on an object using a parallelogram
  • Lift reduces and therefore so does weight
  • Shows the overall effect of an aerofoil in flight
  • Weight and lift both act vertically

Flight path:
- Shows effect of horizontal distance
- Shows overall effect of an aerofoil in flight

162
Q

Balanced Diet

A

Diet that maintains or improves overall health. Provides the body with essential nutrition e.g., fluid, vitamins, fibre and energy

Percentage breakdown:
- Carbohydrates 30%
- Fruit and vegetables 30%
- Protein 20%
- Dairy 15%
- Fats 5%

19-51 year-olds calorie intake:
Men - 2,500
Women - 2,000

163
Q

Carbohydrates

A

What is is?
Simple (sugars): Easily digested into the body e.g., fruit
Complex (starches): Plant based, take a long time to digest e.g., bread/pasta

What does it do?
- Primary source of energy
- Needed for high intensity work
- Food is digested and converted into glucose stored in the liver and muscles

164
Q

Proteins

A

What is it?
- Molecules made up of amino acids (used in body cells to build up proteins)
- Needed for the body to function
- Examples: Meats, fish, quinoa, eggs and nuts

What does it do?
- Muscle growth and repair
- Functioning of enzyme
- Functioning of hormones
- Minor source of energy
- Basics of body structure

165
Q

Fats

A

What is it?
Saturated (sweet and savoury): Provides a secondary energy source
Unsaturated (meat and dairy): Mainly made from industrial processed food
- Nuts, oil, canola, butter, soya

What does it do?
- Causes excessive weight gain
- Reduces stamina
- Lead to chronic health disorders
- Limits flexibility
- Leads to high cholesterol (fats found in the blood)

166
Q

Vitamins and Minerals

A

Calcium: For muscles to move and nerves to carry message to the brain
Iron: Makes haemoglobin in red blood cells to carry oxygen
Phosphorus: Activates enzymes, keeps blood pH normal, and element in bones
Vitamin A (Fat soluble): For normal vision, immune system, reproduction and growth
Vitamin D (Fat soluble): Help absorb calcium and phosphorus + maintain it
Vitamin E (Fat soluble): Acts as an antioxidant and protects cell
Vitamin K (Fat soluble): Makes various proteins needed for blood/bones
Vitamin C (Water soluble): Helps protect cells against sun, x-rays, other sources
Vitamin B (Water soluble): Releases energy from carbs and fats - helps break down amino acids

Fat soluble - Can be stored in the body e.g., eggs, vegetables, animal products

Water soluble - Can’t be stored in the body, requires to be replenished more frequently e.g., milk, fruit, grains, veg

167
Q

Fibre and Water

A

Fibre - Slows down the breakdown of food. Helps the digestive system. Found in wholemeal carbohydrates

Water - Helps maintain body weight. Transports nutrients/hormones. Regulates body temperature

168
Q

Anabolic steroids

A

What are they?: Help make an increase in strength and power by promoting bone growth and muscle mass

Benefits:
- Increased muscle tissue and strength
- Reduces body fat
- Increased muscle strength/power

Drawbacks:
- Mood swings in high quantity
- Heart disease
- Males - Testicular atrophy
- Females - Body hair

169
Q

Erythropoietin

A

What is it?: Stimulates red blood cells and therefore more haemoglobin can pick up oxygen for the muscles

Benefits:
- Stimulates red blood cell production
- Regulates concentration of red blood cells and haemoglobin

Drawbacks:
- Increased blood viscosity
- Fever and seizures
- Increased risk of blood clots

170
Q

Human Growth Hormone (HGH)

A

What are they?: Anabolic - it accelerates protein synthesis and aids the metabolism of fat stores

Benefits:
- Boosts protein
- Promotes utilisation of fats
- Interferes with action of insulin

Drawbacks:
- Risk of heart disease and diabetes
- Blood clots
- Dosage errors

171
Q

Blood doping

A

What is it?: Misuse of certain techniques and/or substances such as EPO to increase red blood cells to transport more oxygen

Benefits:
- Aerobic system and oxygen transportation
- Improved ability to sustain maximal endurance exercise
- Reduces fatigue

Drawbacks:
- Blood viscosity increase
- Heart attack and stroke risk
- Increased risk of blood clots

172
Q

Intermittent Hypoxic training

A

What is it?: Involves performer training at lower levels of oxygen with intervals to train the body e.g., endurance

Benefits:
- Increases oxygen carrying RBCs
- Utilises oxygen to produce energy
- Improves immune/metabolic systems

Drawbacks:
- Brain damage/respiratory infection
- Increase in breathlessness
- Onset of anaemia and loss of muscle mass

173
Q

Cooling aids

A

What are they?: Assist blood circulation, reduces lactate levels and eases muscle soreness. Improves relaxation during recovery

Benefits:
- Helps reduce thermal strain
- Reduces cardiovascular drift
- Reduces sweating/dehydration

Drawbacks:
- Redness on site of application
- Stinging and burning
- May not work successfully/have no or little effect

174
Q

Glycogen/Carb loading

A

What is it?: technique to increase stores of glycogen in muscles before before endurance events. Four days before the event, the performer decreases training levels and increases the amount of carbs eaten e.g., pasta.

Benefits:
- Increases muscle glycogen stores
- Gives performer more energy for endurance sports
- Helps build muscle mass/prevent loosing muscles
- Delays fatigue
- Good for endurance

Drawbacks:
- Bloating and gas due to fibre
- Blood sugar changes
- Weight gain
- Digestive discomfort

175
Q

Pre event meals

A

What is it?: Provides nutrients and fluid needed to complete a competition or training, provides energy

Benefits:
- Gives performer more energy
- Prevents fatigue
- Decreases hunger pains
- Hydration allows them to maintain their body fluids
- Provides them with calories/nutrients

Drawbacks:
- May cause some digestive issues if non-fibre foods are eaten

176
Q

During event meals

A

What is it?: Hydrate consistently and foods which raise blood-glucose

Benefits:
- Avoids ensuing thermal stress
- Maintain plasma volume

Drawbacks:
- Can interrupt the event
- Can overdo it

177
Q

Post event meals

A

What is it?: Helps to replenish glycogen stores and electrolyte imbalance. Protein also helps to repair muscles

Benefits:
- Improves recovery
- Decreases muscles soreness
- Increases immune function
- Increased bone mass
- Decreased muscle fat

Drawbacks:
- Poor diet choices
- Food taken too late after exercise

178
Q

Hydration

A

How the human body takes in and maintains a steady level of water in its tissues and organs down to the cellular level

Side effects:
- Dry mouth/tongues
- Lightheadedness/dizziness
- Dry skin
- Severe thirst
- Muscle weakness
- Tired/lethargic

179
Q

Types of sport drinks

A

Hypotonic: Designed to quickly replace fluids lost during exercise. Contain low salts and sugars
- Lucozade sport
- Hydro active

Isotonic: Best way to rehydrate during and after exercise. Helps to replace electrolytes lost during activities
- Gatorade
- Powerade

Hypertonic: Supplement carbohydrates, provide maximum energy. Contains high levels of salt and sugar
- Lucozade energy
- Red bull

180
Q

Types of aids

A

Ergogenic: Substance/object used to improve/enhance performance
Pharmacological: Group of ergogenic aids taken to increase levels of hormones/transmitters
Physiological: Occurs naturally in the body. Improves response to exercise better than normal

181
Q

Creatine

A

Stored naturally the body, replenishes quicker during exercise, enables high intensity. Can also be artificially put into the body in e.g., protein shakes

Benefits:
- Improves power and strength
- Promotes recovery
- Anaerobic activity
- Increases muscle mass

Drawbacks:
- Unknown long-term effects
- Stomach cramps
- Weight gain due to water retention

182
Q

Caffeine

A

Effects the central nervous system as a stimulant and increases calcium content of muscles e.g., coke or coffee/tea

Benefits:
- Increase alertness
- Increase muscle recruitment
- Enhance strength of contraction

Drawbacks:
- Restlessness/tiredness
- Headaches nd dizziness
- Fast heart rate and insomnia
- Dehydration

183
Q

Bicarbonate

A

A natural buffer part of the body’s base balance and helps to maintain proper pH levels e.g., fruit and vegetables

Benefits:
- Helps clear acid out of muscle cells
- Restore optimum pH
- Neutralises lactic acid
- Increases endurance

Drawbacks:
- Increase risk of swelling
- People with heart failure have been associated with bicarbonate

184
Q

Nitrates

A

Enhance blood flout the muscles and increase efficiency of contractions e.g., leafy greens and beet roots

Benefits:
- Increases efficiency of muscle contraction
- Increased energy
- Enhance blood flow

Drawbacks:
- Can be toxic in high concentrations
- Headaches

185
Q

Basal metabolic rate (BMR)

A

Lowest rate of energy needed to sustain the body’s essential physiological state or functions

186
Q

Resting metabolic rate (RMR)

A

Lowest rate of energy expenditure needed to sustain body’s essential physiological state or functions - NOT including sleep

187
Q

Thermic effect

A

Energy used in the process of eating, absorbing and using food

188
Q

Metabolic equivalent tasks (METS)

A

Ml/O2/Kg/min
Calculation of energy expenditure

189
Q

Periodisation cycles

A

Macro cycle:
- The entire programme
- Long term
- 1 year

Meso cycle:
- The mid-term programme
- Usually between 4 and 6 weeks

Micro cycle:
- The short term programme
- Usually between 1 and 3 weeks

190
Q

Tapering

A

Reduction of training volume and intensity just prior to competition in order to allow peaking to occur. This is because the high volume and intensity of training that helps bring an athlete to their best physical condition also causes impairments in performance

191
Q

Magnus force

A

The creation of an additional Magnus force on a spinning projectile which deviates from it’s expected flight path

192
Q

Types of spin

A

Topspin: Applied above the COM (spins downwards around transverse axis)
Backspin: Applied below the COM (spins upwards around transverse axis)
Sidespin hook: Applied right of COM (spins left around the longitude axis) causing it to deviate left
Sidespin slice: Applied left of COM (spins right around the longitudinal axis) causing it to deviate to the right

193
Q

The Magnus effect

A
  • The way the projectile spins determines the direction, velocity and pressure of air flow around it
  • Pressure gradient is formed either side of the spinning projectile and an additional Magnus force is created which deviates the flight path
  • All forms of spin create a non-parabolic flight path
  • Topspin creates a downward Magnus force, shortening flight path
  • Backspin creates upward Magnus force, lengthening flight path
  • Sidespin creates a Magnus force to the left swerving the projectile to the right (slice) or a Magnus force to the right and swerving to the left
194
Q

Air flow diagram

A
  • Direction of air flow opposing direction of motion
  • Direction of rotation
  • Velocity and pressure labels
  • More and tighter air flow lines with the direction of rotation side of the projectile
  • Magnus force in the direction of the flight path deviation starting from the centre of mass

A level study sets (42 decks)

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