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Effect of Drop Height on Vertical Jumping Performance in Pre-, Circa-, and Post-Pubertal Boys and Girls

Abstract : Purpose: To examine the effect of drop height on vertical jumping performance in children with respect to sex and maturity status. Methods: Thirty-seven prepubertal, 71 circapubertal and 69 postpubertal boys and girls performed, in a randomized order, 2 squat jumps (SJ), 2 countermovement jumps (CMJ) and 2 drop jumps (DJ) from heights of 20, 30, 40, 50, 60 and 70 cm. The trial with the best jump height in each test was used for analysis. Results: No significant sex  maturity status  jump type interaction for jump height was observed. However, on average, the children jumped higher in the CMJ than in SJ and DJs (+1.2 and +1.6 cm, P<0.001, respectively), with no significant differences between DJs and SJ or between DJs when increasing drop heights. Regarding DJs, 59.3% of the participants jumped higher from drop heights of 20 – 40 cm. Conclusions: Children, independent of sex and maturity status, performed best in the CMJ, and no performance gain was obtained by dropping from heights of 20 to 70 cm. During maturation the use of drop heights between 20 and 40 cm may be considered for use in plyometric training, but the optimum height must be obtained individually.
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https://hal.uca.fr/hal-03011404
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Submitted on : Friday, November 20, 2020 - 3:35:55 PM
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Anthony Birat, David Sebillaud, Pierre Bourdier, Eric Doré, Pascale Duché, et al.. Effect of Drop Height on Vertical Jumping Performance in Pre-, Circa-, and Post-Pubertal Boys and Girls. Pediatric Exercise Science, Human Kinetics, 2020, 32 (1), pp.23-29. ⟨10.1123/pes.2019-0120⟩. ⟨hal-03011404⟩

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