title: Repeated High-Intensity-Effort Activity in Elite and Semielite Rugby League Match Play.
abstract: OBJECTIVE
  No study has investigated the frequency and nature of repeated high-intensity-effort (RHIE) bouts across elite and semielite rugby league competitions. This study examined RHIE activity in rugby league match play across playing standards.
  
  
  METHODS
  36 elite and 64 semielite rugby league players.
  
  
  METHODS
  Global positioning system analysis was completed during 17 elite and 14 semielite matches.
  
  
  RESULTS
  The most commonly occurring RHIE bouts involved 2 efforts (2-RHIE) for both elite and semielite players. Only small differences were found in 2-RHIE activity between elite and semielite match play (effect size [ES] ≥ 0.31 ± 0.15, ≥ 88%, likely). RHIE bouts were more likely to involve contact as the number of efforts in a bout increased (ES ≥0.40 ± 0.15, 100%, almost certainly). Semielite players performed a greater proportion of 2-contact-effort RHIE bouts than their elite counterparts (68.2% vs 60.6%, ES 0.33 ± 0.15, 92%, likely), while elite players performed a greater proportion of 3-effort bouts (26.9% vs 21.1%, ES 0.31 ± 0.15, 88%, likely). Elite players also had a shorter recovery (1.00-3.99 vs ≥4.00 min) between RHIE bouts (ES ≥ 1.60 ± 0.71, ≥ 94%, likely).
  
  
  CONCLUSIONS
  These findings highlight the RHIE demands of elite and semielite rugby league match play. Elite players are more likely to perform RHIE bouts consisting of 3 efforts and to have a shorter recovery time between bouts. Exposing players to these RHIE demands in training is likely to improve their ability to tolerate the most demanding passages of match play.
authors: School of Exercise Science, Australian Catholic University, Brisbane, QLD, Australia.
authors: Georgia M
authors: GM
authors: Black
authors: Tim J
authors: TJ
authors: Gabbett
mesh_terms: D000054:Acceleration; D000328:Adult; D056352:Athletes / Q000523:psychology; D054874:Athletic Performance / Q000523:psychology; D001696:Biomechanical Phenomena; D003163:Competitive Behavior; D005538:Football / Q000523:psychology; D040362:Geographic Information Systems; D006801:Humans; D008297:Male; D009043:Motor Activity; D011446:Prospective Studies; D020127:Recovery of Function; D012420:Running; D013647:Task Performance and Analysis; D013997:Time Factors; D055815:Young Adult