Kinesiology 2230A/B Lecture Notes - Lecture 5: Usain Bolt, Citric Acid Cycle, Patellar Reflex
20 Apr 2016
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Document Summary
Muscle has tremendous ability to hypertrophy (increase in size) Lean individuals have to get rid of subcutaneous fat. Definition is result of depleting all glycogen at time of competition (this makes them smaller) gets rid of water i. e. cho stored with water so if get rid of water get rid of cho. *difference in muscle size relative to the number of contractions that are required in a particular performance. Usain bolt: 31 strides = 31 contractions: less hypertrophy of muscle short duration but still not as much muscle required. 400m runner: difference in upper body strength (less) 100m runner: huge component of first 30-40m for acceleration uses upper body strength so have bigger upper bodies. Marathoner: musculature is very small: demands require minimal strength but aerobic power! St: generate significant amounts of force: ~st fibers generate 60% of force. Maximal strength: combination of fiber types cumulative effect.
