Reducing whole-body vibration and musculoskeletal injury with a new car seat design
A new car seat design, which allows the back part of the seat (BPS) to lower down while a protruded cushion supports the lumbar spine, was quantitatively tested to determine its effectiveness and potentials in reducing whole-body vibration (WBV) and musculoskeletal disorders in automobile drivers. Nine subjects were tested to drive with the seat in: 1) the conventional seating arrangement (Normal posture); and 2) the new seating design (without BPS (WO-BPS) posture). By reducing contact between the seat and the ischial tuberosities (ITs), the new seating design reduced both contact pressure and amplitude of vibrations transmitted through the body. Root-mean-squared values for acceleration along the z-axis at the lumbar spine and ITs significantly decreased 31.6% ( p
Keywords: Ergonomics; Seat; Vehicle; Whole-body vibration
Document Type: Research Article
Affiliations: 1: Department of Orthopaedic Surgery, St. Joseph Hospital Chicago, IL, USA 2: Department of Radiology
Publication date: 15 July 2005
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