CHP8 Fitness Components (Characteristics) Flashcards
(81 cards)
Name all Fitness components
(Aerobic power), (Anaerobic Capacity), (Muscular strength, muscular power, muscular endurance), (speed, agility), (flexibility, balance and coordination)
Factors affecting fitness components
- age
-sex
-muscle fibre types
Define and explain Aerobic Power
- maximum rate of energy production from the aerobic energy system.
-(The cardiovascular and respiratory systems work together to deliver oxygen to the working muscles for any physical exertion that requires aerobic power)
-When an athlete’s cardiovascular and respiratory systems are well-trained, they can produce energy (ATP) more efficiently during intense exercise and sustain high performance for longer. Their body also recovers faster, replenishing anaerobic energy stores more effectively.
High importance of Aerobic power
- extended athletic events such as marathons, triathlons and cross country skiing
- team sports requiring repeated efforts over a longer period of time
- racquet sports such as tennis and squash, due to the duration of the games
- intermittent sports, for positions that cover a lot of distance
- Increased movements over a long period of time such as netball, football, hockey, soccer, volleyball, water polo, basketball, lacrosse and rugby
Factors affecting aerobic power
- Muscle fiber type
- Sex
3.Age
what are the effects on the aerobic power due to muscle fibre type
- A greater percentage of slow-twitch fibres will increase aerobic power (V02 max)
- Slow-twitch fibres work aerobically. Therefore, the more slow-twitch fibres a person has, the
greater their ability to work aerobically.
what are the effects on the aerobic power due to age
-Aerobic power (VO2 max) peaks in a person’s early to mid 20s and then decreases as age
increases.
- This is due to the decreased elasticity of the lungs (decreased oxygen uptake), decreased
haemoglobin (decreased oxygen transport) and decreased muscle mass and therefore
mitochondria (decreased oxygen utilisation)
what are the effects on the aerobic power due to the sex
- Males generally have a higher aerobic power (VO2 max) than females
- This is due to males generally having larger lungs (increased oxygen uptake), higher haemoglobin
levels (increased oxygen transport) and more muscle mass and therefore mitochondria
(increased oxygen utilisation).
Tests for aerobic power
- 20-metre multi-stage test or 20-metre shuttle run test
- yo-yo intermittent recovery test
- Cooper 12-minute run test
- VO2 max Astrand-Rhyming cycle ergometer test
- VO2 max treadmill test.
Training methods for aerobic power
The most appropriate training methods to develop aerobic power are continuous, fartlek, long-interval, HIIT and
circuit training with a W:R ratio of 1:1 or 2:1
What is Anaerobic Capacity
- The total amount of energy obtainable from the anaerobic energy systems (the combined capacity of the ATP-CP system and anaerobic glycolysis system)
- high anaerobic capacity can allow an athlete to complete longer maximal intensity efforts and to repeat more maximal intensity efforts with limited recovery.
- measured over a maximal effort up to one minute.
(As you have already learned, during a maximal effort up to one minute, the ATP–CP system initially plays a major role, and then the anaerobic glycolysis system will contribute most significantly.)
High importance of Anaerobic Capacity
-allows an athlete to complete longer maximal intensity efforts
EXAMPLE
- Repeated sprints in intermittent sports with insufficient recovery
- An elite- level, 100-metre sprint in swimming
- an elite level 400-meter run
Factors affecting anaerobic capacity
-Muscle fibre type
- Sex
- Age
-Lactate tolerance
Muscle fiber type effects anaerobic capacity due to:
- A greater percentage of fast-twitch fibres will increase anaerobic capacity.
- Fast-twitch fibres work anaerobically. Therefore, the more fast- twitch fibres a person has, the greater their ability to work anaerobically
Sex effects anaerobic capacity due to:
Males generally have a higher anaerobic capacity than females.
(this is due to males generally having more muscle mass and therefore more places to store CP and anaerobic enzymes, increasing their ability to work anaerobically)
Age effecting anaerobic capacity due to:
Anaerobic capacity peaks in a person’s 20s and then decreases as age increases.
(This is due to decreased muscle mass, which means fewer places to store CP and anaerobic enzymes.)
Lactate tolerance affecting anaerobic capacity due to:
- the greater a person’s lactate tolerance, the greater their anaerobic capacity.
- the more metabolic by-products that can be tolerated, the more high-intensity efforts/longer high-intensity efforts can be made.
Ways to test anaerobic capacity
- phosphate recovery test
-30-second wingate test - repco peak power test
-(most appropriate methods is short and intermediate interval training)
What is muscular strength
->strength is the peak force that a muscle can develop
Muscular strength is of high importance in:
- Pushing with seven teammates against eight opponents in a rugby union scrum
- gripping a hockey stick while making a powerful shot at goal
- attempting a static or submission hold against an opponent in wrestling
- leaning out to try to keep a boat upwrite while sailing.
Factors affecting muscular strength factors and muscular power
(the same as those affecting
muscular strength, as power combines strength and speed)
-cross-sectional area
-fibre type
- sex
-speed of muscle contraction
-age
-warm up
-joint angle around the muscle
- muscle fibre arrangement
Cross-sectional area effects on muscular strength and power
- the larger the muscle, the greater the strength potential
- this relates to the muscle mass, not the total body area in which the muscle is found.
Fibre type effect on muscular strength and power
Fast-twitch fibres are capable of greater strength output than are slow-twitch fibres.
the effect of sex on muscular strength and power
males generally have greater muscle mass, so they have greater absolute strength.
however, there is no differnece in the strength available to any gender.