Kinesiology 1080A/B Lecture Notes - Lecture 16: Myocyte, Golgi Tendon Organ, Dorsal Root Ganglion

• School: Western University
• Department: Kinesiology
• Course: Kinesiology 1080A/B
• Professor: Matthew Heath

Document Summary

Older adults balance training exercises that are a stepping test leads to a large cognitive, motor and balance boost. Wobble board training used with older adults or individuals with injuries to the lower leg. Group of muscle fibers contract and it might also cause activation of a golgi tendon organ. Golgi tendon organ = found in neuromuscular junction between muscle and bone. It"s a protective mechanism in the muscle that prevents too much force form being produced. Monitor for force in muscle when force becomes too much they generate a signal that is associated with the dorsal root ganglia, it is synapsing with the red structure. The recruitment of motor units within a muscle proceeds from small motor units to large ones. Low force contraction, nearly all force produced is by slowest motor units. If contraction force increased, larger motor neuron starts to fire. At the highest level of force (max. voluntary contraction) the largest motor units are recruited.