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Some aspects of static and slow dynamic grip strength.
Department of Industrial and Operations Engineering, College of Engineering, University of Michigan 1973 Jun; :1-33
Various handle radii, handle openings, and handle types were investigated and found to affect static and slow dynamic grip strength capability as measured via a hydraulic hand tool simulator. Slow dynamic grip strength capability averaged 82.57 percent of static strength capability. Attempts were made to predict dynamic capability from conventional hand dynamometer capability and anthropometric dimensions through these techniques. Results suggest that a simple moment analysis will suffice when considering different handle radii, especially for static tasks. The fact that a 10 percent decrement in grip strength occurred when square handles were substituted for contoured handles suggests that handle shapes would become an increasingly significant factor under prolonged or extended work cycles and under conditions involving radical differences in handle design.
NIOSH-Grant; Musculoskeletal-system-disorders; Human-factors-engineering; Ergonomics; Work-measurement; Power-tools; Statistical-analysis; Energy-expenditure; Man-machine-systems; Physical-exercise
Industrial Engineering University of Michigan 2260 G G Brown University Ann Arbor, Mich 48105
Final Grant Report
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Department of Industrial and Operations Engineering, College of Engineering, University of Michigan
University of Michigan, Ann Arbor, Michigan
Page last reviewed: May 5, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division