KIN 3515 Lecture : KIN 3515 Lecture 5
15 Mar 2019
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Kin 3515 lecture #5 9/8/15: calcium pump numbers can vary. Studies on rats where they did startle reflex. They had higher rate code than needed for maximum force. In high faster rate code, able to contract faster. Faster the rate code the faster the movement. High rate codes lead to fatigue so not often used. In certain cases want both (lion chasing you). If you decrease stimulation rate see greater drop in force than you do velocity: at high stimulation rates gets faster jolts of power but don"t use for long, stimulation you are on/off. At high rate codes, you"re off shorter periods of time: faster the rate code, the more continuous the movement, one thing that affects acute and chronic velocity-lattice spacing. Lattice spacing refers to distance between thick and thin filaments. If you change distance, you change the velocity. Myosin heads can"t move as fast: d. Lattice spacing refers to the width of the cell.
