The effects of in-season, low-volume sprint interval training with and without sport-specific actions on the physical characteristics of elite academy rugby league players
(Die Auswirkungen eines Sprint-Intervalltrainings mit geringem Umfang in der Saison mit und ohne sportartspezifische Aktionen auf die körperlichen Eigenschaften von Hochschul-Rugby-Liga-Spielern der Spitzenklasse)
Purpose: To determine the utility of running-only and rugby-specific, in-season sprint interval interventions in professional rugby league players.
Methods: Thirty-one professional academy rugby players were assigned to a rugby-specific (SITr/s, n=16) or running-only (SITr, n=15) sprint interval training group. Measures of speed, power, change of direction ability, prone Yo-Yo Intermittent Recovery Test (Yo-Yo IR1) performance, and heart rate recovery were taken before and after the 2-week intervention as were submaximal responses to the prone Yo-Yo IR1. Internal, external, and perceptual responses were collected during SITr/s and SITr, with well-being and neuromuscular function assessed before each session.
Results: Despite contrasting (possible to most likely) internal, external, and perceptual responses to the SIT interventions, possible to most likely within-group improvements in physical characteristics, heart rate recovery, and submaximal responses to the prone Yo-Yo IR1 were observed after both interventions. Between-group analysis favored the SITr/s intervention (trivial to moderate) for changes in 10-m sprint time, countermovement jump, change of direction, and medicine ball throw as well as submaximal (280-440 m) high metabolic power, PlayerLoad™, and acceleration distance during the prone Yo-Yo IR1. Overall changes in well-being or neuromuscular function were unclear.
Conclusions: Two weeks of SITr/s and SITr were effective for improving physical characteristics, heart rate recovery, and submaximal responses to the prone Yo-Yo IR1, with no clear change in well-being and neuromuscular function. Between-group analysis favored the SITr/s group, suggesting that the inclusion of sport-specific actions should be considered for in-season conditioning of rugby league players.
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Schlagworte: | Rugby Hochschule Training Sprint Intervallmethode Belastungsumfang Relation Körperbau Körpermaß |
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Notationen: | Spielsportarten |
DOI: | 10.1123/ijspp.2019-0165 |
Veröffentlicht in: | International Journal of Sports Physiology and Performance |
Veröffentlicht: |
2020
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Jahrgang: | 15 |
Heft: | 5 |
Seiten: | 705-713 |
Dokumentenarten: | Artikel |
Sprache: | Englisch |
Level: | hoch |