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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Exploring the Utility of Performing a Down Set as a Postactivation Potentiation Strategy

Wong, Hanson, Gentles, Jeremy, Bazyler, Caleb, Ramsey, Michael 01 May 2021 (has links)
ABSTRACT: Wong, H, Gentles, J, Bazyler, C, and Ramsey, M. Exploring the utility of performing a down set as a postactivation potentiation strategy. J Strength Cond Res 35(5): 1217-1222, 2021-The purpose of this study was to determine if successive heavy sets of back squats can augment the concentric velocity of a lighter down set performed by strength-trained men. Twelve trained men with experience in the back squat volunteered to perform a 5 repetition maximum (5RM) along with 2 separate squat sessions consisting of 3 sets of 5 repetitions with 85% of their 5RM. One condition involved performing a "down set" (DS) after the 3 working sets at 85% of 5RM equivalent to 60% of the working-set load that was also performed during the warm-up. A "No down set" condition involved performing an additional warm-up set before the working sets with 60% of the working-set load instead of the down set to determine if velocity was augmented because of postactivation potentiation in the DS condition. In both conditions, 3 minutes of rest was applied between all sets. A paired sample t-test was used to compare the mean concentric velocities (MCVs) of the working sets of both conditions, and a repeated measures analysis of variance was used to assess differences in MCVs between sets performed at 60% of the working-set load. Cohen's d effect sizes were reported for all comparisons, and the critical alpha was set at p ≤ 0.05. No significant differences were observed in the working-set MCVs in both conditions (p = 0.412, d = 0.246) or between MCVs in the down set and equivalent warm-up set load in the DS condition (p = 0.270, d = 0.002).Although performing a down set may still be efficacious for developing power across a broad spectrum of loads, the results of this study suggest successive heavy sets of back squats do not acutely augment down set concentric velocity in strength-trained men.

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