Effect of Postactivation Potentiation on Fifty-Meter Freestyle in National Swimmers

• Published in: Journal of strength and conditioning research Vol. 29; no. 4; pp. 1003 - 1009
• Main Authors: Sarramian, Victor G., Turner, Anthony N., Greenhalgh, Andrew K.
• Format: Journal Article
• Language: English
• Published: United States Copyright by the National Strength & Conditioning Association 01-04-2015; Lippincott Williams & Wilkins Ovid Technologies
• Subjects: Adolescent; Athletes; Athletic Performance - physiology; Female; Humans; Lower Extremity; Male; Muscle, Skeletal - physiology; Muscular system; Swimming; Swimming - physiology; Torso; Upper Extremity; Warm-Up Exercise - physiology; Weight
• ISSN: 1064-8011; 1533-4287
• DOI: 10.1519/JSC.0000000000000708

ABSTRACTSarramian, 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 compareda traditional race-specific warm-up (RSWU), upper-body 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. Participantsʼ 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 × 3RM of the PU). In session 3, swimmers performed a countermovement jump 4, 8, and 12 minutes after LBPAP stimulus (1 × 5 jumps to a box while carrying 10% of the participantsʼ 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.