La Prensa Medica.ISSN: 0032-745X

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Research Article, Prensa Med Argent Vol: 102 Issue: 2

Reliability of Squat Jump and Countermovement Jump Performance in Masters Athletes

Abstract

Reliability of Squat Jump and Countermovement Jump Performance in Masters Athletes

Despite their widespread use in performance assessment in younger athletes, the reliability of squat jump (SJ) and countermovement jump (CMJ) assessments has not been reported in master’s athletes. The aim of this study was to assess the test-retest reliability of the SJ and CMJ in master’s athletes. Ten master’s athletes (50.8 ± 6.0 years) were recruited and asked to perform SJ and CMJs on two separate occasions six days apart. Moderate to high intra class correlations (0.56 to 0.95) were observed for SJ peak power (PP), peak power body mass-1 (PP BM-1), peak force (PF), peak force body mass-1 (PF BM-1) and peak concentric rate of force development (PCRFD) and jump height (JH). High intra class correlations (>0.8) were observed for CMJ PP, PP BM1, PF, PF BM-1 and PCRFD.

Keywords: Masters athlete; Squat jump; Countermovement jump; Test-retest reliability; Technical error of measurement; Coefficient of variation; Intra class correlation coefficient

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