KINE 3030 Study Guide - Agonist, Maximum Force, Pennate Muscle

• School: York University
• Department: Kinesiology & Health Science
• Course: KINE 3030
• Professor: Tim Moore

Document Summary

Extensibility refers to the ability to be stretched. Elasticity refers to the ability to return to normal resting length after a stretch. Parallel and series elastic components are the stretchy parts of muscle and tendons, respectively: even steel is stretchy. Irritability is the ability to respond to a stimulus (electrical stimulation from the nervous system) Smaller motor units are recruited first (henemen"s recruitment principle: used for fine movement. Fast twitch fibres (type iia, iib) both reach peak tension and relax more quickly than slow twitch fibres (type i: exist as a continuum. Peak tension is greater for fast twitch than slow twitch. Parallel fibre arrangement: parallel with the longitudinal axis, with a shortening of fibres there is a direct shortening of muscle. Is not force, but rather net joint torque. Agonist muscles are the muscles that are active (both concentric and eccentric contractions: not based on the direction of motion.