Kinesiology 3550A/B Lecture Notes - Lecture 7: Flexor Pollicis Longus Muscle, Carpal Tunnel, Repetitive Strain Injury
23 Nov 2017
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Lecture 7: word related musculoskeletal disorders part 1. Not a diagnosis: group of soft tissue injuries/disorders with similar characteristics: many names wrmd, repetitive strain injuries (rsi), repetitive motion injuries (rmi), cumulative trauma disorders (ctds) Repair capacity limited from: lack of rest, repeated exposure. Epidemiological (patterns, causes, of diseases on populations, shapes policy) studies id risk factors: force: required, force higher than capability of tissue, repetition: leads to fatigue and microscopic injury, posture-fixed or awkward: out of neutral, duration. Obstruction of blood/nerve supply over extended time complete deterioration of muscle. May exhibit doms, natural response to abnormal loading. Stress muscle tension past normal resting tone pain with even mild tasks. Collagen fibres, can"t be stretched/contracted, but if excessively strained tear. Scar tissues form more susceptible to repeated injuries and chronic tension: surfaces become rough, interfering with motion and creating friction along other tissues.
