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The Journal of Sports Medicine and Physical Fitness 2014 April;54(2):238-43

Copyright © 2014 EDIZIONI MINERVA MEDICA

lingua: Inglese

Effect of heavy back squats on repeated sprint performance in trained men

Duncan M. J., Thurgood G., Oxford S. W.

Department of Biomolecular and Sports Sciences Coventry University, Coventry, UK


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Aim: This study examined the impact of post activation potentiation on repeated sprint performance in trained Rugby Union players.
Methods: Ten, male, professional Rugby Union players (mean age=25.2±5.02 years) performed 7, 30-meter sprints, separated by 25 seconds, 4 minutes following back squats (90% 1 repetition maximum) or a control condition performed in a counterbalanced order.
Results: Significant condition X sprint interactions for 10-meter (P=0.02) and 30-meter (P=0.05) indicated that times were significantly faster in the PAP condition for sprints 5, 6 and 7 across both distances. Fatigue rate was also significantly lower in the PAP condition for 10-meter (P=0.023) and 30-meter (P=0.006) sprint running speed.
Conclusion: This study evidences that a heavy resistance exercise stimulus administered four minutes prior to repeated sprints can offset the decline in sprint performance seen during subsequent maximal sprinting over 10 and 30-meters in Rugby Union players.

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