KINE 4460 Study Guide - Midterm Guide: Spinal Disc Herniation, Sagittal Plane, Human Musculoskeletal System
30 Jul 2017
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Document Summary
Biomechanics: the study of the effects & control of forces that act on & are produced by living bodies. Ergonomics: the science of worker, removes barriers to quality, productivity, & human performance by fitting products, tasks, & environments to people. Difference: both recognize a multi-disciplined approach to understand the worker: work interface, ergonomics = more broad, environment, cognitive issues, social & organizational elements, holistic approach, occupational biomechanics, doesn"t take into account psychological aspect, more physical. Internal muscles & passive tissues outcome depends on tissue loaded: acute injuries very high forces which exceed tissue tolerance, chronic injuries lower forces combined w/ repetition, awkward posture, end rom, time. Purpose: to reduce or prevent the occurrence of lifting related lbp in workers. Revised: asymmetrical lifting, coupling, repetition (decreasing tissue tolerance), distance of load from the front, and focus on more engineering controls rather than administrative controls. Load constant: 23kg max rwl under optimal conditions, acceptable to 75% females, 90% males.
