Kinesiology 2230A/B Lecture Notes - Lecture 28: Myelin, Stretch Reflex, Capillary Action
7 Apr 2018
School
Department
Course
Professor
Document Summary
Low carbs because carbs are stored as glycogen with water. Fat twitch fiber (right) has only 3 or 4. Power lifted (lift something once) - high density 300 lbs. Marathon runner (2hrs 5 min of power) st. Sequential activation of different muscle types depending on effort. Train as close as possible to what"s going to happen in a game situation. St- low force, contractile speed is slow, doesn"t fatigue as long as there is substrate. Actin-myosin atpase maintains strength in longer duration activities. Fast twitch a fibers generate reasonable force, but only for relatively short periods of time. Able to maintain relatively high speeds for 4 minutes. Fatigue profile: if you"re running as fast as you can for a couple of minutes you are going to have depleted the energy that you are getting from those fibers. If we look at the mean st concentration. So muscles depending on function will have a different fiber composition profiles.
