Resumen de Postactivation Potentiation Effects After Heavy Resistance Exercise on Running Speed

D. Chatzopoulos, Charalampos Michailidis, Athanasios Giannakos

• Chatzopoulos, D.E., C.J. Michailidis, A.K. Giannakos, K.C. Alexiou, D.A. Patikas, C.B. Antonopoulos, and C.M. Kotzamanidis. Postactivation potentiation effects after heavy resistance exercise. J. Strength Cond. Res. 21(4):1278-1281. 2007.-The purpose of this study was to investigate the postactivation potentiation effect after a heavy resistance stimulus (HRS) on running speed (RS). Fifteen amateur team game players (basketball, volleyball, handball, and soccer players), ages 18-23 years running the 30-m dash and the intermediate phase of 0-10 and 0-30 m sprints, were used to evaluate RS. Resistance training consisted of 10 single repetitions at 90% of 1 repetition maximum. The running tests were performed 3 times- (a) 3 minutes prior the HRS, (b) 3 minutes after the HRS, and (c) 5 minutes after the HRS-in separated training sessions. Results showed that RS was not affected 3 minutes after the resistance training, but it increased for both selected running phases (0-10 and 0-30 m) 5 minutes after the HRS (p < 0.05). These findings indicate that heavy resistance exercise improves 10- and 30-m sprint performance when performed 5 minutes after the exercise bout.