title: Acute effects of a warm-up including active, passive, and dynamic stretching on vertical jump performance.
abstract: The purpose of this study was to examine the acute effects of 3 different stretching methods combined with a warm-up protocol on vertical jump performance. Sixteen young tennis players (14.5 ± 2.8 years; 175 ± 5.6 cm; 64.0 ± 11.1 kg) were randomly assigned to 4 different experimental conditions on 4 successive days. Each session consisted of a general and specific warm-up, with 5 minutes of running followed by 10 jumps, accompanied by one of the subsequent conditions: (a) Control Condition (CC)-5 minutes of passive rest; (b) Passive Stretching Condition (PSC)-5 minutes of passive static stretching; (c) Active Stretching Condition (ASC)-5 minutes of active static stretching; and (d) Dynamic Stretching Condition (DC)-5 minutes of dynamic stretching. After each intervention, the subjects performed 3 squat jumps (SJs) and 3 countermovement jumps (CMJs), which were measured electronically. For the SJ, 1-way repeated measures analysis of variance (CC × PSC × ASC × DC) revealed significant decreases for ASC (28.7 ± 4.7 cm; p = 0.01) and PSC (28.7 ± 4.3 cm; p = 0.02) conditions when compared with CC (29.9 ± 5.0 cm). For CMJs, there were no significant decreases (p > 0.05) when all stretching conditions were compared with the CC. Significant increases in SJ performance were observed when comparing the DC (29.6 ± 4.9 cm; p = 0.02) with PSC (28.7 ± 4.3 cm). Significant increases in CMJ performance were observed when comparing the conditions ASC (34.0 ± 6.0 cm; p = 0.04) and DC (33.7 ± 5.5 cm; p = 0.03) with PSC (32.6 ± 5.5 cm). A dynamic stretching intervention appears to be more suitable for use as part of a warm-up in young athletes.
authors: Laboratory of Human Motricity Biosciences (LABIMH), Federal University of State of Rio de Janeiro, Rio de Janeiro, Brazil. flpcarvalho@gmail.com
authors: Felipe L P
authors: FL
authors: Carvalho
authors: Mauro C G A
authors: MC
authors: Carvalho
authors: Roberto
authors: R
authors: Simão
authors: Thiago M
authors: TM
authors: Gomes
authors: Pablo B
authors: PB
authors: Costa
authors: Ludgero B
authors: LB
authors: Neto
authors: Rodrigo L P
authors: RL
authors: Carvalho
authors: Estélio H M
authors: EH
authors: Dantas
mesh_terms: D000293:Adolescent; D054874:Athletic Performance; D006801:Humans; D008297:Male; D052580:Muscle Stretching Exercises