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Revista Brasileira de Medicina do Esporte

Print version ISSN 1517-8692On-line version ISSN 1806-9940


HESPANHOL, Jefferson Eduardo; SILVA NETO, Leonardo Gonçalves da  and  ARRUDA, Miguel de. Reliability of the four series 15-second vertical jumping test. Rev Bras Med Esporte [online]. 2006, vol.12, n.2, pp.95-98. ISSN 1517-8692.

PURPOSE: The purpose of this study was to check the reliability of the vertical jumping test and re-test in four series of the 15-seconds test (IVJT). METHOD: Eighteen male volunteer athletes participated in this study, and they were divided as follows: eleven handball players (25.74 ± 4.71 years; 85.84 ± 7.63 kg; 182.14 ± 3.46 cm), and seven basketball players (18.60 ± 0.77 years; 83.82 ± 10.02 kg; 188.14 ± 5.76 cm). The assessed variables for the test and re-test were: power peak (PP), mean power (MP), and fatigue index (FI). The performances attained by them in these variables were measured through the vertical jumping test in four series of the 15-seconds test with 10 seconds recovery between series. The statistical treatment was performed through the descriptive technique and the intraclass correlation coefficient (ICC). RESULTS: The results have shown a high ICC in the repeated measurements performed in different days for every variable: PP (r = 0.992; p = 0.0360); MP (r = 0.993; p = 0.0107); and FI (r = 0.981; p = 0.0556). Added to this, it was found high correlation coefficients between the test and re-test as to the quality indicators in the measurements of the vertical jumping technique with counter-movement without the help of the upper limbs (CMJ) (r = 0.991; p = 0.0800), for the amount of jumps together with a 15 and 60 seconds work (AVJ15s, r = 0.936; p = 0.0062, and AVJ60s, r = 0.978; p = 0.0139) and in the jumped height, in a 15 and 60 seconds work (VJ15s, r = 0.993; p = 0.0467, and VJ60s, r = 0.988; p = 0.0014). CONCLUSION: The data analysis pointed out the existence of a reliable measurement of the IVJT when assessing the explosive strength resistance through the MP and FI variables.

Keywords : Assessment; Collective sports; Vertical jumping test.

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