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Upper extremity injuries
Published in Youlian Hong, Roger Bartlett, Routledge Handbook of Biomechanics and Human Movement Science, 2008
Ronald F. Zernicke, William C. Whiting, Sarah L. Manske
Lateral epicondylitis or extensor tendinopathy: Lateral epicondylitis typically presents as lateral elbow pain arising from pathology (tendinosis) of the extensor carpi radialis brevis (ECRB) tendon, close to the extensor origin at the lateral epicondyle. As inflammation tends to be present only in the early stages of development, some prefer to refer to the condition as epicondylosis. As the site of pathology is usually below the lateral epicondyle in the ECRB tendon, and the primary pathology is collagen disorganization, it has also been called extensor tendinopathy (Whaley and Baker, 2004). Significantly, epicondylitis is a degenerative process rather than an inflammatory process (Whaley and Baker, 2004). With continued use and microdamage, partial tears of macroscopic size may appear (Regan et al., 1992).
Epicondylitis
Published in Richard Graveling, Ergonomics and Musculoskeletal Disorders (MSDs) in the Workplace, 2018
The term epicondylitis is applied to musculoskeletal conditions centred on the two epicondyles of the elbow. The epicondyles are bony prominences or bulges at the lower end of the humerus, just above the elbow joint. Attached to the humerus at these points are a number of muscles that extend into the forearm. Because at these origins, the muscles are not separately distinguishable, they are known as ‘common’ origins. The origin arising from the lateral epicondyle is known as the ‘common extensor origin’ and that arising from the medial epicondyle is called the ‘common flexor origin’.
Immediate effects of counterforce brace with and without vibration on pain, muscle strength and range of motion in participants with lateral epicondylitis. A pilot study
Published in Assistive Technology, 2022
Forough Dehghani, Hassan Saeedi, Alireza Khaghani, Masumeh Bagherzadeh Cham
Lateral epicondylitis (tennis elbow) is a common soft tissue lesion caused by damage to the extensor muscles of the wrist upon overuse (Chumbley et al., 2000). This disorder is characterized by pain and tenderness at the lateral epicondyle of the elbow. The extensor tendons of the wrist, especially the extensor carpi radialis brevis tendon, contract at the site of attachment to the humerus due to a series of specific sports activities such as tennis or repetitive occupations which cause stretching and as a result, pain, and inflammation (Kraushaar & Nirschl, 1999; Shiri & Viikari-Juntura, 2011).