4 Muscle strain 4 Damage to the musle fibers 4 Due to overstretch or too much contraction 4 Classification: 1st, 2nd, and 3rd degree
5 Myofacial pain syndrome 4 Local and referred pain patterns 4 Muscle stiffness and shortening 4 Taut bands in muscle 4 Presence of trigger points 4 Local twitch response or jump sign 4 Autonomic dysfunction
7 Tendinitis or tendosynovitis 4 Local pain & tenderness 4 Resisted isometric contraction induces pain 4 Tendon stretch induces pain 4 May have local swelling or crepitus 4 May have tendon shortening or adherence (triggering)
12 Major Problems of Musculoskeletal Disorders 4 Pain 4 Contracture 4 Muscle weakness, atrophy 4 Instability 4 Functional impairment
13 Definition of Pain (IASP) 4 “An unpleasant sensory and emotional experience associated with actual or potential tissue damage, or described in terms of such damage.” – Acute pain vs chronic pain – Individual variations – Psychological factors
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