The 10% rule: grip strength and hand dominance in a factory population.
This study examined the applicability of the 10% rule and the possible effect of years of work experience on the percent difference in grip strength for a sample of 124 factory workers in Indiana. The overall mean percent difference in grip strength, measured by the Jamar dynamometer, for both right- and left-handed participants was 6.3079%. A statistical difference was found (P = 0.029) in percent difference in grip strength among subjects with varying years of work experience. A significant difference (P = 0.007) also existed when comparing the right-handed scores to the left-handed scores of the Edinburgh Inventory. Results suggest that establishing grip strength norms for factory workers should not be determined by a percent difference rule, and the years of work experience need to be taken into consideration.
Graduate Programs in Occupational Therapy, University of Indianapolis, 1400 East Hanna Avenue, Indianapolis, IN 46227, USA.
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Jarjour
Graduate Programs in Occupational Therapy, University of Indianapolis, 1400 East Hanna Avenue, Indianapolis, IN 46227, USA.
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JA
Lathrop
Graduate Programs in Occupational Therapy, University of Indianapolis, 1400 East Hanna Avenue, Indianapolis, IN 46227, USA.
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Meller
Graduate Programs in Occupational Therapy, University of Indianapolis, 1400 East Hanna Avenue, Indianapolis, IN 46227, USA.
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Roberts
Graduate Programs in Occupational Therapy, University of Indianapolis, 1400 East Hanna Avenue, Indianapolis, IN 46227, USA.
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JM
Sopczak
Graduate Programs in Occupational Therapy, University of Indianapolis, 1400 East Hanna Avenue, Indianapolis, IN 46227, USA.
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KJ
Van Genderen
Graduate Programs in Occupational Therapy, University of Indianapolis, 1400 East Hanna Avenue, Indianapolis, IN 46227, USA.
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Moyers
Edinburgh Inventory; Hand dominance; Jamar Dynamometer