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Visa fullständig version : Effekt av tunga knäböj på sprintförmåga


King Grub
2014-02-11, 20:14
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.

J Sports Med Phys Fitness. 2014 Apr;54(2):238-43. Effect of heavy back squats on repeated sprint performance in trained men.