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Effect of heavy back squats on repeated sprint performance in trained men
M J Duncan1, G Thurgood, S W Oxford
1Department of Biomolecular and Sports Sciences Coventry University, Coventry, UK - michael.duncan@coventry.ac.uk.
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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