The Reliability of Functional Movement Screening and In-Season Changes in Physical Function and Performance Among Elite Rugby League Players

• Autores: Mark Waldron, Adrian J. Gray, Paul Worsfold, Craig Twist
• Localización: Journal of strength and conditioning research: the research journal of the NSCA, ISSN 1064-8011, Vol. 30, Nº. 4, 2016, págs. 910-918
• Idioma: inglés
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• Resumen

  • This study aimed to (a) assess the reliability of the functional movement screening (FMS) protocol and (b) to establish changes in both FMS and tests of physical performance throughout a season. The reliability of the FMS components (12 in total) was assessed through a nonparametric statistical approach, based on 2 trials, separated by 1 week. Score on the FMS, strength (3 repetition maximum full squat, 1 repetition maximum [1 RM] bench press), running speed (10 and 40 m), and jump height of 12 elite male under-19 rugby league players was monitored at pre-, mid-, and late-season periods. There was no bias (p > 0.05) found between trials for the FMS, with the majority of components reaching 100% �perfect agreement,� reflecting the good reliability of the FMS tool. There were no effects (p > 0.05) of season stage on any of the FMS components; however, an improvement (p <= 0.05) between the pre- and both mid- and late-season periods was apparent in every component of fitness, such as 1 RM bench press (112.92 ± 24.54 kg; 125.83 ± 21.41 kg; 125.98 ± 24.48 kg) and 40-m sprint time (5.69 ± 0.35 seconds; 5.62 ± 0.31 seconds; 5.64 ± 0.27 seconds). Our findings demonstrate that the FMS can be reliably administered to elite rugby league players but will not change in accordance with physical performance across a competitive season. Our findings should not necessarily deter practitioners from using the FMS but begin to question the specific qualities that are being assessed through its administration.