Predicting lower body explosive strength using hand grip dynamometer strength test

Abstract

Problem statement: Numerous fitness tests are usually administered to determine either muscular strength or cardiovascular endurance. Even though an ample number of tests exist to measure upper body muscular endurance and lower body maximal muscular strength, a single test that assesses both could be beneficial in some circumstances. Purpose: The purpose of this study was to determine if a hand-grip dynamometer strength test is a valid predictor of lower body explosive strength. Methods: Participants included 164 college students including both genders included boys = 83, (age 20.72±2.82 yrs., height 170.28±5.48 cm, weight 62.01±9.55 kg) and girls = 81, (age 20.64±2.74 yrs, height 159.30±5.68 cm, weight 55.71±8.14 kg). Subjects performed the standing broad jump (SBJ) for lower body explosive strength. Subjects performed 3 trials of the dominant hand grip strength (dHGS) test, after which the maximum value was recorded. Pearson bivariate correlation analyses were used to determine relationships between measures. Simple linear regression with enter method was performed to predict variation in lower body explosive strength through the hand grip dynamometer strength test. Results: Significant correlations were found between dHGS and SBJ (r = .802, p<0.05), A simple linear regression was calculated to predict BMI based on HGS. The regression was found statistically significant (R 2 = .642, F (1, 162) = 291.036, P<0.05). Following reference equation [SBJ = (0.974) + (0.015) × dHGS] was developed to predict lower body explosive strength. Conclusions: The hand grip dynamometer strength test was a significant predictor of lower body explosive strength. The reference equation calculated implicates its usefulness as a method to predict lower body explosive strength simply through the hand grip dynamometer strength test.

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