Kinesiology Flashcards

(55 cards)

1
Q

Kinesiology

A

The study of movement and active and passive structures involved

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2
Q

Frame of Reference

A

Explains human behavior

Specific treatment

Provides rationales for why techniques work

Assumpstions, Function-dysfunction continuum, evaluation, treatment

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3
Q

Why do we take measurements

A

To determine presence or absence of dysfunction
To establish baselines
To objectively measure amount or lack of progress
To help set realistic goals
Research the effectiveness of therapeutic techniques
Fabricate orthoses and adaptive equipment

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4
Q

Screening

A

Look in medical record at past tests

Observation of PROM, AROM

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5
Q

Non-Pathological Factors Effecting ROM

A
Sex	
Age
Hereditary factors
Occupation
Physical training 
Anxiety or stress
Fear of injury
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6
Q

Types of goniometers and uses

A

Finger
“180”
Larger goniometers used for larger joints of the body

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7
Q

Parts of goniometer

A
Stationary arm (Proximal bar)
Moveable arm (Distal bar)
Axis
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8
Q

How to record findings

A

Determined by setting –
use 180 degree scale;
some use form, some just write it in narrative.
State position of the patient while measured
ROM recorded as an arc of motion
State whether recorded motion is passive (PROM) or active (AROM)
We do not measure AAROM

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9
Q

How to record findings

A

E.G.: Elbow flexion:

Normal: 0˚ → 135˚ → 150˚
Limited elbow / : 15˚ → 135˚ → 150˚
Limited elbow v : 0˚ → 100˚
Limited elbow / and v : 20˚ → 100˚
Hyperextension: -20˚ → 135˚ → 150˚

If not tested: N/T or N/A

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10
Q

Documenting Goniometric Measurements

A

Patient name, age, sex, diagnosis
Therapist name (will sign)
Date and time of measurement
Joint and motion being measured (including side of the body)
Type of motion - passive or active
Subjective information such as pain
Objective information such as crepitus, capsular pattern
Describe deviation from recommended position

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11
Q

Factors Effecting Muscle Strength

A
Subject factors
General health status
Pathology
Gender
Age
Activity level/occupations
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12
Q

Psychological/psychosocial factors

A
Motivation/perceived effort/expectation
Cognition
Distress and anxiety
Depression
Fear of injury
Self efficacy
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13
Q

Muscle factors

A
Type of fibers
Innervation ratio
Fiber architecture
Type of contraction
Number of joints crossed
Vascularity
Fatigue
Angle of pull
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14
Q

Types of Skeletal Muscle

A
Fusiform
Penniform (Stronger than fusiform muscles)
Unipennate
Bipennate
Multipennate
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15
Q

Innervation ratio

A

Average number of muscle fibers per motor unit in a givin muscle

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16
Q

Red Muscle Fibers

A
Slow twitch
Smaller for endurance 
Aerobic- Uses ATP stored in muscles
depends on oxygen or air to function
Made for strength 
Fast reaction
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17
Q

White Muscle fibers

A
Fast twitch
Larger for speed
Anaerobic
Does not need Oxygen to function
Uses energy from another source
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18
Q

Isometric

A

Contraction of muscle without visable movement

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19
Q

Isotonic

A

With movement

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20
Q

Angle of pull

A

Direct line of pull on the muscle

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21
Q

Ways to assess muscle strength

A

Screening- tools exist that give a general estimate (MR, observation, gross check comparing limbs)
Functional motion testing – infer strength through observing engagement in daily activities
Manual muscle testing – break test, active resistance, testing of muscle groups vs. individual muscles

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22
Q

Why Do We Take Measurements?

A

To establish baseline, set goals, plan treatment
To discern how muscle weakness interferes with ADL
To assist with diagnosis (doctor)
To prevent deformities
To objectively measure amount or lack of progress
To aid in activity selection
Establish need for AE
Research the effectiveness of therapeutic techniques
Screen for job placement & return to work
Medical-legal (once signed becomes legal doc)

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23
Q

When Do We Take Measurements

A

At initial evaluation
At re-evaluations
At D/C

24
Q

Muscle Grades

A

Normal N 5
Good G 4
Fair + F+ 3+
Fair F 3
Fair- F- 3-
Poor + P + 2+
Poor P 2
Poor- P- 2-
Trace T 1
Zero

25
Articulations or Joints
Synarthrosis Amphiarthrosis Diarthrosis
26
Diarthrodial (Synovial) Joint
``` Synovial fluid Articular cartilage Articular capsule Synovial membrane Capsular ligaments Blood vessels Sensory nerves Fat Pads Bursa Meniscus ```
27
Types of Synovial Joints
``` Hinge joint Pivot joint Ellipsoid joint Ball-and-socket joint Plane joint Saddle joint Condyloid joint ```
28
Joint Forces
Forces occur in the joint secondary to primary forces of the muscles contracting, gravity, external resistance, or friction Joint may be distracted by gravity/weight Joint may be compressed by weight bearing At a normal level of activity a joint can resist the forces imposed on it
29
Joint Pathology
``` Trauma Acute Chronic Micro-traumas Overuse Disease Re: osteoarthritis Re: rheumatoid arthritis ```
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Effects of Aging
Can be modified, positively and negatively, by activity, nutrition, and medical factors Micro-traumas can contribute to structural failure Less water, prone to adhesions
31
Functions of the muscular system
Generate tension that is transferred to the bone via tendons When tension is generated a compression force is applied across the bones stability enhanced Depending on the line of pull & direction of movement, muscles can also pull segments apart stability reduced movement occurs
32
Functions of the muscular system
It also distribute loads & act as shock absorbers  protect the skeleton Support and protect organs & internal tissues Have an effect on pressure inside body cavities & on body temperature
33
Muscles
Smooth - involuntary muscle; No control over contraction Cardiac - a type of involuntary muscle Skeletal (striated)* - voluntary muscle; You contract the muscle at will.
34
Structure of Skeletal Muscle
``` Muscles - comprised of fasciculi Fasciculus - bundle of muscle fibers Muscle fiber comprised of myofibrils Myofibril consists of: Actin Myosin ```
35
5 General characteristics of skeletal muscle
Contractility – muscle contracts produces tension between the bonesexerts a pull Irritability- ability to respond to stimuli and transmit impulses Relaxation – the opposite of contraction Distensibility – can be lengthened or stretched by a force outside itself – antagonist,gravity or other resistance (therapy) Elasticity – the ability to recoil after a stretch
36
Nervous System
Provides control/coordination of contraction of muscles - fine control over speed, length, tension Central nervous system (CNS) Brain and spinal cord Peripheral nervous system (PNS) Peripheral nerves, effectors (motor nerves) and receptors (sensory nerves) of the body
37
Motor Unit
Nerve-muscle functional unit Primarily all motor neurons in skeletal muscles called alpha motor neuron Vary in size Fibers of each motor unit are dispersed throughout the muscle with fibers of other units – a number of units need to fire to make a joint angle change
38
All or None
All muscle fibers in a motor unit either contract or relax at the same time - One fiber can not contract while others relax
39
Muscle Tone
Firmness of palpation | Postural tone – muscle tone in postural or tonic muscles, or antigravity muscles
40
Joint, Tendon, and Muscle Receptors
Detect changes in tension and position of structures – provide feedback to nervous system Joint compression Joint distraction Golgi tendon organs and muscle spindles
41
Energy Sources for Muscle Contraction
Anaerobic metabolism – chemical energy (from ATP) stored in skeletal muscle. Aerobic metabolism – chemical energy (from stored carbohydrates, fats, proteins) stored in body
42
Attachment of Muscles
``` Bone - directly through fleshy fibers Bone - indirectly Tendon Aponeurosis - broad flat thin tendon Ligaments (part of joint capsule) Skin Muscles of facial expressions ```
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Insertions
Usually most moveable Usually distal attachment Usually attached to lighter segment Usually smaller attachment
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Tonic Muscles
``` Constructed for stability - stabilizers Usually non-parallel; uni, bi, multi pennate Fibers usually short and wide Uniarthrodial Usually medially located Usually lie deep Usually attach near to joint they cross Have a predominance of red fibers ```
45
Phasic Muscles
``` Constructed to produce movement - mobilizers Usually parallel; Longitudinal, fusiform Fibers long and narrow Multiarthrodial Usually laterally situated Usually more superficial Usually attached further from joint crossed Predominately white fibers ```
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Antagonist
muscle (group) has opposite action of agonist
47
Agonist
muscle directly responsible for a given joint action; Principle muscle producing a movement
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Synergist
muscle which contracts at the same time as the agonist.
49
Assistant movers
assist primary mover
50
Neutralizers
neutralize unwanted movement
51
Stabilizers
stabilize movement creating smoother motion
52
Prime mover
(agonist), muscle directly responsible for a given joint action
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Assistant movers
also capable of movement directly but of less importance
54
Emergency muscles
muscles which help prime movers and assistant movers only under emergency conditions.
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Origins
Usually least moveable Usually proximal attachment Usually attached to heavy segment Usually broader attachment