Relationship Between Distinct Physical Capacities in Young Welsh Rugby Players

Irineu Loturco; Peter Ashcroft; Nathan Evans; Chris Tombs; Lucas A. Pereira; Ian Jeffreys

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Relationship Between Distinct Physical Capacities in Young Welsh Rugby Players

Irineu Loturco ^[1] ; Peter Ashcroft ^[1] ; Nathan Evans ^[1] ; Chris Tombs ^[1] ; Lucas A. Pereira ^[2] ; Ian Jeffreys
1. [1] University of South Wales
  
  University of South Wales
  
  Pontypridd, Reino Unido
2. [2] Universidade Federal de São Paulo
  
  Universidade Federal de São Paulo
  
  Brasil
Localización: Journal of strength and conditioning research: the research journal of the NSCA, ISSN 1064-8011, Vol. 36, Nº. 2, 2022, págs. 441-447
Idioma: inglés
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Resumen
- We examined the correlations between aerobic fitness (assessed by the 30-15 intermittent fitness test [IFT]), maximum isometric strength, vertical jump, and speed performance of 37 under-16 (U16) Welsh regional rugby players. The physical assessments used in this research are part of a regional development program under the auspices of the players' development pathway created by the Welsh Rugby Union. The tests were performed in the following order: vertical jumps, isometric midthigh pull, 40-m sprint velocity, and 30-15 IFT. A Pearson's product moment correlation coefficient was used to estimate the magnitude of the relationships between the different physical variables. Overall, we found significant associations between jump height, sprint velocity, maximum isometric strength, and 30-15 IFT performance (r ranging from 0.44 to 0.70). Moreover, strong positive interrelationships were observed between strength, speed, and jump qualities (r ranging from 0.51 to 0.80). Although these findings remain to be established in prospective studies, it seems that U16 athletes are capable of simultaneously improving their aerobic fitness and neuromuscular performance. This can be confirmed by the close correlations between the 30-15 IFT and every neuromechanical parameter reported here. Therefore, practitioners are recommended to use multifaceted training schemes with their young rugby players, including different components of endurance, speed, strength, and power training.