|
|
This is only a preview of the paper
Click here to register and get the full text.
Existing members click here to login
|
|
|
... They also do not produce as much force as fast twitch fibres but can easily cope with prolonged periods of exercise. ... These can contract more quickly and exert more force than type I slow oxidative fibres. The amount of force is greater because there are more muscle fibres in each motor unit. ... The rapid build up of a by-product (lactic acid) lowers the pH and has a negative affect on enzyme action, causing the muscle fibre to fatigue quickly. ... These fibres are also very quick to contract and can exert a large amount of force. ... The muscle neurones supplying this fibre type are large and this increases contractile speed. The neurone also activates a greater number of muscle fibres meaning that each motor unit can produce a much greater force than slow oxidative motor units.
During my warm up I would use all three-muscle fibres, as I need different speeds and force of muscular contraction. Type I slow oxidative fibres would be recruited during my exercise at the beginning of my warm up as l would be doing an aerobic exercise and so I would want a slow release of energy that would not cause fatiguing by-products. ... Type IIa fast oxidative glycolytic muscle fibres would be used when doing the skill based work in my warm up.
Approximate Word count = 1071
Approximate Pages = 4.3
(250 words per page double spaced)
|
|
|
|
|
|