Kinesiology 2241A/B Lecture Notes - Lecture 10: Golgi Tendon Organ, Shoulder Joint, Shot Put

• School: Western University
• Department: Kinesiology
• Course: Kinesiology 2241A/B
• Professor: Thomas Richard Jenkyn

Document Summary

Assignment #2: when the shoulder joint is flexed 90 degrees, and you flex your elbow there is no discomfort and can be done with ease. When you repeat the flexion of the elbow, while your shoulder joint is flexed 180 degrees there is a pull or stretching sensation in your triceps, causing discomfort. The name for this phenomenon is passive insufficiency: type 1, slow-twitch oxidative fibers (so), are slow to contract, but very fatigue resistant, and are ideal for long distance marathon runners. Type iia, fast-twitch, oxidative fibers (gof), are fast to contract, but fatigue easily, and are the type of fibers acting during a 100 m dash. Lastly, type iib, fast-twitch, glycolytic fibers (fg), are fast to contract, but fast to fatigue when glycogen runs out. Type i primarily, but still some type iia and type iib: the legs of a cross-country skier. Type i: the legs of a mountain climber.