Short duration static stretching preceded by cycling warm-up reduces vertical jump performance in healthy males
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It has been proposed that warm-up activities including static stretching may have detrimental effects on power performance. While it is well established in the literature that more than 30 s of stretching before exercise induces deficit in force and power production, there are still controversial findings regarding 30 s or less when additional interventions, such as general warm-up, are allied to the stretching. Therefore, the purpose of this study was to evaluate the acute effect of passive static stretching preceded by dynamic warm-up on vertical jump performance.
Twenty healthy men participated in this study, and attended to one familiarization session and two testing sessions. In the warm-up (WP) condition, participants performed a 5 min warm-up on a cycle ergometer followed by the counter movement jump (CMJ) test. In the warm-up plus static stretching (WP + SS) condition, besides the same previously described warm-up, participants performed 30 s static stretching bouts for calf, hamstrings, gluteus maximus and quadriceps muscles in a randomized order, followed by the CMJ test.
Data distribution was verified by the Shapiro–Wilk test and Paired T-Student test was used to compare jump height between the two conditions. A significant between-condition effect was observed for CMJ height (p < 0.05), such that jump height was significantly lower in WP + SS condition.
The results of the present study demonstrate that a 5 min dynamic warm-up combined to a 30 s of passive static stretch in four muscle groups induce a reduction in lower limb power measured by CMJ height.
KeywordsCountermovement jump Muscle performance Muscle power Warm-up
Compliance with ethical standards
Conflict of interest
The authors declare no conflict of interest.
All procedures performed in studies involving human participants were in accordance with the ethical standards of the Human Ethics Committee of the Ardabil Department of Education and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
Informed consent was obtained from all individual participants included in the study.
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