期刊
JOURNAL OF STRENGTH AND CONDITIONING RESEARCH
卷 29, 期 4, 页码 1003-1009出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1519/JSC.0000000000000708
关键词
PAP; warm-up; sprint; swimming; performance; sport
Sarramian, VG, Turner, AN, and Greenhalgh, AK. Effect of postactivation potentiation on fifty-meter freestyle in national swimmers. J Strength Cond Res 29(4): 1003-1009, 2015-The purpose of this study was to examine the effect of PAP on 50-m freestyle in national-level swimmers. Four warm-ups were compared: a traditional race-specific warm-up (RSWU), upperbody PAP (UBPAP), lower-body PAP (LBPAP), and combined PAP warm-up (CPAP). Eighteen (10 men, 8 women) national-level swimmers participated in this study, which included 7 separate testing sessions. Participants' 3 repetition maximum (3RM) of the pull-up (PU) was established in session 1. In session 2, rest periods for muscle enhancement of the upper body were determined using a medicine ball throw test 4, 8, and 12 minutes after UBPAP stimulus (1 x 3RM of the PU). In session 3, swimmers performed a countermovement jump 4, 8, and 12 minutes after LBPAP stimulus (1 x 5 jumps to a box while carrying 10% of the participants' body weight). The 50-m freestyle tests were performed on sessions 4-7, preceded by each warm-up protocol and corresponding rest periods. A repeated-measures analysis of variance (p <= 0.05) and Bonferroni post hoc test revealed that RSWU elicited faster swimming times than UBPAP (29.00 +/- 2.05 vs. 29.36 +/- 1.88 seconds, p = 0.046). Additionally, when data were split into gender, in the male group, the UBPAP elicited significantly slower times than RSWU (27.51 +/- 1.06 vs. 28.01 +/- 1.17 seconds, p = 0.047) and CPAP (27.49 +/- 1.12 vs. 28.01 +/- 1.17 seconds, p = 0.02). These findings suggest individualized PAP warm-up may be a valuable tool to enhance performance in sprint events, particularly in male swimmers. However, the PU may not be an appropriate PAP stimulus on its own.
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