What movement patterns occur on the transverse plane?
Horizontal flexion, extension and Rotation
8 of 30
Give an example of a Ball and socket joint and the articulating bones?
Shoulder, Humerus and Scapular
9 of 30
What type of joint is at the Elbow, Knee and Ankle?
Hinge
10 of 30
What are the articulating bones at the Elbow?
Humerus, Radius and Ulna
11 of 30
What plane of movement does Adduction occur on?
Frontal plane
12 of 30
What is the agonist?
Muscle responsible for creating movement at a joint
13 of 30
What is the antagonist?
Muscle opposing the agonist, proving a resistance for co-ordinated movement
14 of 30
What is the fixator?
muscle stabilising one part of the body while another moves
15 of 30
What are the two types of isotonic muscle contractions?
Concentric and Eccentric
16 of 30
Define Concentric muscle contraction
Muscle shortens to produce tension
17 of 30
Define an eccentric muscle contraction
Muscle lengthens to produce tension
18 of 30
What is an isometric muscle contraction?
Muscle contracts but does not change length and no movement in created
19 of 30
What are motor neurons?
Specialised cells which transmit nerve impulses rapidly to a group of muscle fibers
20 of 30
What is given the term 'motor unit'?
Motor neuron and muscle fibers
21 of 30
Summarise the role of a motor unit
Nerve impulse initiated in motor neurone cell body. Impulse sent down axon in form of action potential to synaptic cleft. Acetycoline secreted into synaptic cleft to conduct impulse across gap. If charge is above threshold, fiver will contract.
22 of 30
What is meant by the all-or-none law?
If stimulus is above threshold, all muscle fibres will contract. If not none will contract
23 of 30
Name the three types of muscle fibre?
1, Slow oxidative. 2, Fast oxidative glycolytic. 3, Fast glycolytic
24 of 30
Briefly describe SO fibres
Provide energy for sub-maximal aerobic work, Contract intermittently to give overall low contraction force, Individual fibres will recover very quickly
25 of 30
How would you adapt training to aid SO muscle fibres?
1:1 work:relief ratio, Training can occur on a daily basis, Advised in-between heavy weight training sessions
26 of 30
Describe FOG fibres
Produce large amount of force quickly, capacity to resist fatigue
27 of 30
In which activities are FOG fibres more likely to be used?q
High-intensity activities lasting a few minutes (800m)
28 of 30
Describe FG muscle fibres
Recruited in the last 2-10 seconds of contractions, accompanied by eccentric muscle damage which causes DOMS
29 of 30
If FG fibres are worked to exhaustion how long do they take to recover?
4-10 days
30 of 30
Other cards in this set
Card 2
Front
What is synovial fluid?
Back
Lubricating liquid contained within the joint cavity.
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