Relationship between maximal anaerobic power measured by force-velocity test and performance in the counter movement jump and in the 5-jump test in moderately trained boys

Purpose. - The aim of this study was to investigate the relationship between maximal anaerobic power measured by force-velocity test and performances in vertical jump and in 5-jump test in young boys. Methods. - 18 trained boys participated in this study (mean age 12 +/- 0.4 years). They performed three anaerobic tests: force-velocity test, vertical jump test and 5-jump test. Anthropometric measurements were made to estimate the muscle volume of the lower limbs. Peak anaerobic power (Watts, Watts/kg and Watts/l of muscle) was measured during a force-velocity test on a Monark ergocycle. Performances were measured during vertical jump test with a force platform and during the 5-jump test. Results. - We found a significant correlation between the peak anaerobic power Measured during force-velocity test (W) and body mass (r = 0.80: P < 0,00 1). The peak power (W. W/kg) was also correlated to muscle volume (r = 0.89: P < 0.001 r = 0.63: P < 0.01 respectively). Furthermore, peak anaerobic power (W/kg) was significantly correlated with performance in vertical jump, (r = 0.64: P < 0.01) and with the 5-jump test (r = 0.74: P < 0.001). Vertical jump was also correlated to the 5-jump test (r = 0.63 P < 0.01). Conclusion. - This study shows significant correlations between peak anaerobic power, body mass and muscle volume in trained young boys. Furthermore, correlations observed between the Force-velocity test and performances in both vertical jump and the 5-jump test suggest that the 5-jump test is a good tool to estimate muscular anaerobic power of legs and a very practical means of selection and/or orientation of young people to explosive sports. (c) 2005 Elsevier SAS. Tous droits reserves.