Potentiating Response to Drop-Jump Protocols on Sprint Acceleration: Drop-Jump Volume and Intrarepetition Recovery Duration
Byrne, Paul J.
Moody, Jeremy A.
Lippincott, Williams and Wilkins
MetadataDangos cofnod eitem llawn
The purpose of this study was to investigate the postactivation potentiation response first to bounce drop jump (BDJ) volume; second, BDJ intrarepetition recovery duration and recovery duration between BDJs and 20-meter (including 5- and 10-m split times) sprint performance. The study was undertaken in 2 parts, the first part compared different volumes of BDJs and the second part compared different BDJ intrarepetition recovery periods. The effect of recovery periods between the BDJs and the subsequent 20-m sprints was examined in both parts 1 and 2 (15 seconds, 4, 8, and 12 minutes). Fourteen (mean ± SD: age = 20.83 ± 1.26 years; height = 1.77 ± 0.04 m; and mass = 74.89 ± 6.07 kg) (part 1) and 15 (mean ± SD: age = 20.64 ± 1.00 years; height = 1.78 ± 0.06 m; and mass = 75.67 ± 6.28 kg) (part 2) male collegiate and club hurling players volunteered to participate. A randomized cross-over design was used to compare BDJ volumes (1, 2, and 3 sets of 3 repetitions) and BDJ intrarepetition recovery time (15 vs. 60 seconds) after a warm-up followed by 2 baseline 20-m sprints. The results in part 1 reported a significant improvement in 5- and 10-m sprint time for 1 set of 3 BDJs between baseline and 4 minutes (5 m: −2.34%, p = 0.04, effect size [ES] = −0.043; 10 m: −1.42%, p = 0.03, ES = −0.35), and baseline and 12 minutes (5 m: −3.33%, p = 0.03, ES = −0.57; 10 m: −2.13%, p = 0.01, ES = −0.52). Part 2 reported a significant improvement in 5-m sprint time between baseline and 15 seconds (5 m: −3.38%, p = 0.01, ES = −0.83; 10 m: −2.07%, p = 0.02, ES = −0.58) after the BDJs. The findings support the use of 1 set of 3 BDJs using a 15-second intrarepetition recovery period to maximize 5-, 10-, and 20-m sprint performance after 15 seconds of recovery after the final BDJ in hurling players. The acute response to this BDJ protocol proves to be time efficient and effective in acutely improving sprint acceleration.
Journal of Strength and Conditioning Research;
Byrne, P.J., Moody, J.A., Cooper, S.M., Callanan, D. and Kinsella, S. (2020) 'Potentiating Response to Drop-Jump Protocols on Sprint Acceleration: Drop-Jump Volume and Intrarepetition Recovery Duration', The Journal of Strength & Conditioning Research, 34(3), pp.717-727. https://doi.org/10.1519/JSC.0000000000002720
Dynodwr Gwrthrych Digidol (DOI)https://doi.org/10.1519/JSC.0000000000002720
Article published in The Journal of Strength & Conditioning Research available at https://doi.org/10.1519/JSC.0000000000002720
Cardiff Metropolitan University (Grant ID: Cardiff Metropolian (Internal))
- Sport Research Groups 
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