EXSS1029 Study Guide - Final Guide: Skeletal Muscle, Vastus Lateralis Muscle, Type Ii String Theory

• School: University of Sydney
• Department: Exercise and Sport Science
• Course: EXSS1029
• Professor: Professor

Document Summary

Exss1029 muscle mechanics and training: fibre types and myosin isoforms. 7. 1 be able to sketch the force vs. velocity and power vs. velocity relationships for skeletal muscle. Be able to calculate power given force and velocity data. Be able to explain the general shape of the power vs. velocity relationship specifically in relation to the power output in an isometric contraction and at the maximum speed of unloaded shortening. As the speed of contraction increases the force the muscle can develop decreases. During an isometric contraction the force production is highest and the power is. Power is defined as the rate of doing work. Power = the force exerted on an object multiplied by the distance it moves. Even though there is a chemical work (atp cost) there was no mechanical work done and therefore your external power output is zero. Therefore, external power output for every isometric contraction is zero.