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Prevention of cumulative trauma disorders.
Richardson WG; Marcus BA
EXOS, Inc., Burlington, Massachusetts 1992 Nov; :1-96
The use of the GripMaster (GM) to measure the forces involved in hand functions performed on the job was investigated. The GM was designed to measure flexion/extension and radial/ulnar deviation of the wrist plus up to five finger and hand forces. In laboratory experiments the GM's force measurements were compared to a hand dynamometer and electromyograph measurement techniques; measurements of static wrist postures with the GM were compared to video analysis techniques. Force sensor reliability was tested. The GM was field tested at a lock manufacturing facility. While the GM tested in this study demonstrated a high degree of correlation with the more established techniques under certain circumstances, the calibration techniques and the ranges of force and motion measured were shown to be inadequate. The authors conclude that by extending the sensor range, improving the calibration techniques, and making the force sensing technology more robust, the GM can be a valuable tool in assessing and quantifying cumulative trauma disorder risks.
NIOSH-Grant; Musculoskeletal-system-disorders; Ergonomics; Human-factors-engineering; Cumulative-trauma-disorders
Exos, Inc 8 Blanchard RD Burlington, MA 01803
Final Grant Report
NTIS Accession No.
EXOS, Inc., Burlington, Massachusetts
Exos, Inc., Woburn, Massachusetts
Page last reviewed: February 25, 2022
Content source: National Institute for Occupational Safety and Health Education and Information Division