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1. Biomechanical
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Excessive loads, force, repetition
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Abnormal postures
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Compression. Ischaemia.
Microtears. Muscle
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fatigue. Metabolic changes. Inflammation.
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2. Psychosocial
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Somatising disorders (e.g. work stress, depression)
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Industrial relations conflict
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changing nature of work
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medicalised via workers' compensation
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