Correlations between tensiomyography variables and lower extremity power

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Abstract
Introduction: The main aim of this research was to determine whether there are statistically significant correlations between TMG variables and jumping performance. Materials and Methods: Twenty-five healthy and physically active male students (age: 20.84 ± 0.99 years; body height: 179.46 ± 5.91 cm; body weight: 73.88 ± 6.43 kg) of the Faculty of Sport and Physical Education participated in this study. Radial displacement, contraction time and delay time of the m. vastus lateralis were collected to assess muscles’ contractile characteristics using tensiomyography (TMG). Additionally, squat jump and countermovement jump height were recorded using the Optojump system. Results: A very high, negative, statistically significant correlation between both power assessment variables and the radial displacement variable was found; more specifically, the cor-relation between CMJ and radial displacement amounted to r = -.80, p < .01, while for SJ and radial displacement the correlation amounted to r = -.73, p < .01. High, negative, statistically significant correlations (r = -.61 to -.69, p < .01) were achieved among all other variables. Conclusion: TMG parameters could successfully predict jumping performance in the studied sample of male students.

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