Effects of a Combined Plyometric and Resistance Training Programme on Adolescent Rugby Union Players

Area of Science:

• Sports Science
• Exercise Physiology
• Adolescent Sports Performance

Background:

• Limited research exists on combined plyometric and resistance training for adolescent rugby players.
• Previous studies show benefits in soccer players for strength and jumping ability.

Purpose of the Study:

• To assess the impact of a 6-week combined training program on physical performance in adolescent male rugby players.
• To investigate the effects of a 4-week detraining period (excluding plyometrics) on these adaptations.

Main Methods:

• 15 adolescent male rugby players participated in a 6-week combined training intervention.
• Performance testing occurred pre-intervention, post-intervention, and 4 weeks post-intervention.

Main Results:

• Significant improvements were observed in countermovement jump (CMJ) variables, 3RM back squat strength, and 505 test performance post-intervention.
• The 4-week detraining period further enhanced CMJ variables, standing broad jump, 20m sprint, 505 test, and 3RM strength.

Conclusions:

• A 6-week combined training program effectively improves lower-body power, maximal strength, and change of direction in adolescent male rugby players.
• A 4-week resistance training-only period does not diminish performance adaptations achieved through combined training.