A Comparison of Dominant and Non-Dominant Hand Strengths

Abstract

This study compares dominant and non-dominant hand strength in both right- and left-handed participants. Maximum voluntary contraction (MVC) of the first dorsal interosseous (FDI) muscle, power grip strength and pulp-to-pulp pinch strength were assessed under carefully controlled conditions. No significant differences were observed between dominant and non-dominant hands in left-handed participants for all tests. Small but significant differences (0.1-3%) were observed between dominant and non-dominant hands in right-handed participants for all three tests. These differences were much smaller than those reported in other studies. Furthermore, considerable variability was observed in the relative strengths of the two hands for each participant. We conclude that clinicians must be cautious when using the '10% rule' to make comparisons between injured and uninjured hands.

Surgical Compared with Conservative Treatment for Acute Nondisplaced or Minimally Displaced Scaphoid Fractures

“…The six studies pooled for grip strength 13,14,18,[31][32][33] showed a large variability, and none of the studies could be identified as causing major heterogeneity. Several authors have reported considerable variability in the relative strength of the two hands in a healthy population, and grip strength has been shown to be typically greater on the dominant side than on the nondominant side [36][37][38] . Therefore, the rate of dominant-hand injury, ranging from 34% to 64% across the five studies, could account for some of the grip strength variability among studies.…”

Influence of Sitting Orientation on Upper Extremity Function in Normal Children Between 5 to 16 Years Using Nine Hole Peg Test

“…Our data from dexterity testing with NHPT showed that the dominant hand completed test faster compared to non -dominant hand in both the trunk orientation. The superior performance of dominant hand over nondominant hand has been attributed to hemispheric lateralization12 contradictory finding of Hage JJ reported that there was no difference between dominant and non-dominant hands [13]. Result of this study was favoured by the finding of Armstrong and Oldham observed small but significant differences between the dominant and non-dominant hands [14].…”

Asymmetries of Maximum Hand Grip-, Trunk Rotation and Extensor Strength of the Lower Extremities in Healthy Active Males

“…right-handers predominantly show a distinct superiority of the preferred hand (5,10,29). But also low differences were found for hGs between 5-8% (10) or <5% or none (1). for left-handers considerably smaller differences between the preferred and supporting hand were found, or no asymmetry (11).…”