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IE 552 Mechanics of Musculoskeletal System Dr. Andris Freivalds Class #29

IE 552 Mechanics of Musculoskeletal System Dr. Andris Freivalds Class #29. Logistic Function. y = 1   = e ( β 0 + β 1x1) 1 + e -( β 0 + β 1x1) e ( β 0 + β 1x1) + 1. ln [y/(1-y)] = β 0 + β 1 x 1. Evidence for WRMSD Risk Factors.

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IE 552 Mechanics of Musculoskeletal System Dr. Andris Freivalds Class #29

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  1. IE 552 Mechanics of Musculoskeletal System Dr. Andris Freivalds Class #29 IE 552

  2. Logistic Function y = 1   = e(β0 + β1x1) 1 + e-(β0 + β1x1) e(β0 + β1x1) + 1 ln [y/(1-y)] = β0 + β1x1 IE 552

  3. Evidence for WRMSD Risk Factors IE 552

  4. IE 552

  5. IE 552

  6. Comments on Epidemiological Studies IE 552

  7. Iatrogenesis (Contrarian View) • “Disease state from autosuggestion” • Rapid ↑ WRMSDs in Australia, 1970s • Hadler in U.S • Reasoning for iatrogenesis: • Non-healthy state needs diagnosis • Worker’s Comp requires fit • Adversarial system • Media sensationalism • Strong union support IE 552

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