Psychology 2036A/B Lecture Notes - Lecture 28: Myocyte, Glycolysis, Citric Acid Cycle
22 May 2020
School
Department
Course
Professor
Document Summary
The more myosin atpase you have in the muscle, the more fast twitch the muscle if going be. Slow twitch fibres smaller than fast twitch fibres. Capillarisation of slow twitch 10-11 capillaries whereas fast twitch has only 4. Muscle lifter: cross section of muscle very large; only needs to generate power for one lift. 100m dash: needs to generate force for longer. Longer races: 47seconds; running slower; runner is smaller. Marathon: needs to generate highest power output for longest; slow run; small person; don"t need to be big, just need to be able to run fast for a long time. If you have light effort (just moving something once) with low force you recruit slow twitc muscles. As contractile tension increases you start to recruit type 2a fibres. If you"re going to continue to generate more force you need to recruit remaining oxidative fast twitch fibres(2a)
