Detection of submaximal effort with computer-assisted grip strength measurements

Journal of Occupational and Environmental Medicine
M D MitterhauserT C Jetzer

Abstract

The purpose of this study was to establish a simple observation to help in distinguishing patients who are giving their maximal effort during computer-assisted grip strength measurements from those who are not. Preliminary observations had suggested that maximal effort with this grip-strength device was characterized by greater force in the radial digits than the ulnar digits and a small variability in force between individual grasps. These observations were then prospectively analyzed in the following groups: (a) 178 assembly workers tested during a routine screening at a computer manufacturing company and during pre-placement physicals; (b) 196 workers with a hand injury or cumulative trauma disorder who were seeking consultation for medical treatment; (c) 55 workers with a hand injury or cumulative trauma disorder being measured to determine their return to work status or impairment rating; and (d) 58 asymptomatic volunteers. The volunteers were instructed to perform the maximal grip in the same fashion as the other groups and then to repeat the test exerting a submaximal effort they estimated to be 50% of their own maximal effort. The results of this study demonstrated that there is a highly significant association, P < 0.0...Continue Reading

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Nov 13, 2007·The Journal of Hand Surgery, European Volume·J GülkeM Mentzel
Aug 31, 2000·Journal of Hand Therapy : Official Journal of the American Society of Hand Therapists·O Shechtman, C Taylor
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Dec 12, 2007·The Journal of Hand Surgery·Ahmer K Ghori, Kevin C Chung
Oct 27, 2004·The Clinical Journal of Pain·Michael E Robinson, Erin A Dannecker

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