Abstract
This study examines the force exertion characteristics and laterality of maximal explosive force exertion of hand grip and toe grip. Fifteen male subjects, aged 19 to 23 years, performed maximal explosive hand grip and toe grip exertions with their dominant and non-dominant sides. Maximal force value and integral force for 2 sec in the hand grip exertions were significantly larger than those in the toe grip exertions in both the dominant and non-dominant sides. The time required to achieve 90% maximal force value in the hand grip exertions was significantly shorter than that in the toe grip exertions in both sides. Correlations between the dominant and non-dominant sides were significant (r = 0.710 - 0.889) in maximal force value and integral force for 2 sec during the hand and toe grip exertions, but they were not significant (hand grip: r = 0.242, toe grip: r = 0.032) with respect to the time taken to achieve 90% maximal force value. In conclusion, a force exertion value increases more quickly in an explosive hand grip than that in an explosive toe grip. The laterality may relate to time parameters in both explosive force exertions, but not to ones related to force.
Highlights
People prefer the dominant hand or arm for their upper limbs, but for their lower limbs they often use their legs simultaneously by walking or running
Multiple comparisons showed that maximal force value and integral force for 2 sec were larger in the hand grip than in the toe grip in both dominant and non-dominant sides
Time to 90% maximal force value was shorter in the hand grip than in the toe grip on both sides
Summary
People prefer the dominant hand or arm for their upper limbs, but for their lower limbs they often use their legs simultaneously by walking or running. The feet are in constant contact with the soles of the. How to cite this paper: Nakada, M., & Demura, S. The Characteristics and Laterality of Explosive Force Exertion of Hand Grip and Toe Grip. Demura footwear, and they exert force unintentionally; but the hands are free to be used intentionally. The characteristics of force exertion of the arms and legs differ
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