KIN428 Lecture Notes - Lecture 13: Extensor Carpi Muscle, Grip Strength, Epicondylitis

• School: University of Waterloo
• Department: Kinesiology
• Course: KIN428
• Professor: Clark Dickerson

Document Summary

2015-12-16 (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) Stage 1 inflammation (may reverse with rest) Stage 2 permanent pathologic tissue alterations due to. Stage 4 secondary changes including fibrosis or calcification. Causes: most common, extensor carpi radialis brevis, tissue degeneration, tissue overuse. Age 30 50 years (70% of cases between 40 50 years), sport, smoke, obesity. >50% of tennis players develop this at some point. Overhead serve greatest rom at the elbow seen in serving moving from 20 - 116 of elbow flexion. High force production in the elbow extensors and pronators. Burning pain down arm, grip strength, pain in gripping in pronated forearm position, tenderness over insertion. Relevance to anatomical mechanics: (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) 10 15% reduction in rom, peak torque in wrist extension by about 17%, more common than medial epi. (4:1 7:1)