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Table 5 Muscular strength and power qualities of youth rugby union players categorised by age, level and playing position (data presented as mean and standard deviation)

From: Applied Sport Science for Male Age-Grade Rugby Union in England

Age categoryParticipants including level, position and referenceSample size (n)PPO watt bike test (W)CMJ height (cm)3RM back squat (kg)3RM front squat (kg)3RM split squat (kg)3RM bench press (kg)3RM prone row (kg)3RM chin up (kg)
Under 14Academy [64]51054 ± 263       
Under 15Academy [64]191208 ± 193       
Under 16Academy [62]29 33.5 ± 4.8      
 Academy [64]241242 ± 166       
Under 17Academy [64]41443 ± 41       
Under 18Academy [62]23 39.5 ± 6.1 88.6 ± 10.8L = 62.2 ± 13.1
R = 62.2 ± 13.1
82.6 ± 10.884.6 ± 10.8101.0 ± 10.2
School [65]129     67.7 ± 15.5 90.3 ± 12.6
Academy [65]55     88.3 ± 12.7 96.3 ± 12.6
School [46]35 33.8 ± 5.2077.4 ± 32.6  68.5 ± 12.8 88.0 ± 11.2
School experienced *[67]14   103.0 ± 17.4 92.1 ± 16.5 103.7 ± 14.7
School in-experienced** [67]11   87.5 ± 12.8 95.0 ± 13.0 73.2 ± 15.7
School [66]15  88.8 ± 18.8     
Under 21Academy [62]15 47.1 ± 3.6 118.2 ± 17.8L = 112.8 ± 15.6
R = 113.9 ± 14.1
108.2 ± 14.196.8 ± 8.2125.3 ± 13.2
  1. W watts, CMJ countermovement jump, 3RM three repetition maximum, L left, R right
  2. *> 2 years resistance training experience
  3. **> 6 to < 12 months resistance training experience