Peer-Reviewed Journal Details
Mandatory Fields
Comyns, TM; Harrison, AJ; Hennessy, L; Jensen, RL
Journal Of Strength And Conditioning Research
The effect of squatting on sprinting performance and repeated exposure to complex training in male rugby players.
Optional Fields

This study was undertaken to examine the effect of a heavy weight training exercise on sprinting performance and on the effect of repeated exposure to a complex training protocol. Eleven male rugby union players (age 20.9 3.1 years) participated in the study, which involved five separate testing sessions. Back squat 3RM was established in session one. Sessions two to five were identical and involved the subjects completing a 30 m sprint before and after a 3RM back squat protocol. Four minutes rest was given between the back squatting and the post-test 30 m sprint. All sprint trials were measured with a laser measurement device (LAVEG, Jenoptik). Sprint time and instantaneous, average and maximum velocity were the dependent variables. The criterion for significance was set at an alpha level of p ≥ 0.05. No significant improvement was evident for any of the testing sessions (p ≥ 0.05). In session one there was a significant increase in 30 m time and a significant reduction in average 30 m velocity and maximum velocity (p < 0.05). The expected benefits in sprinting may not have been realised due to intra- and inter-subject variations in sprint technique. The session phase interaction revealed a significant improvement in the pre- to post-test changes in instantaneous velocity at 20 m (p = 0.035) and 30 m (p = 0.036) from session one to session four. This indicates that the rugby players may be able to learn to apply the potentiation effects of complex training. From a practical perspective, players may need repeated exposure to this training modality to gain benefit from it and this should be reflected in programme planning.

1064 8011
Grant Details