An analysis of the Inner and Outer Grip Strength of Rock Climbers and Matched Healthy Non-Climbers

Abstract

Normative volar power handgrip data have already been published, but there remain little data available for power handgrip strength for specific populations. This study examined the inner and outer power handgrip strength of male and female rock climbers, provided normative data on the range of rock climbers’ inner and outer power grip strength and compared this with matched healthy non-climbers. Inner power grip strength was measured on setting two of the Jamar dynamometer and outer power grip on setting four. A total of 32 participants were recruited and both inner and outer power grip were measured. Rock climbers’ inner power grip strength was on average 14% stronger than non-climbers and inner grip strength for both hands was significantly higher for rock climbers (p=0.02). Outer grip strength that replicates the position of crimping routinely used in rock climbing, was not statistically significantly different between the two groups (p=0.39). The assessment of population-specific grip strength is useful for clinicians when assessing and treating individuals who are likely to have different ranges of grip strength due to hobbies or lifestyle occupations.