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Running momentum: A new method to quantify prolonged high-intensity intermittent running performance in collision sports
Scott, Tannath J. Dascombe, Ben J. Delaney, Jace A. Sanctuary, Colin E. Scott, Macfarlane T. U. Hickmans, Jeremy A. Duthie, Grant M.
Scott, Tannath J.
Dascombe, Ben J.
Delaney, Jace A.
Sanctuary, Colin E.
Scott, Macfarlane T. U.
Hickmans, Jeremy A.
Duthie, Grant M.
Abstract
Purpose: This study determined differences in prolonged high-intensity running (PHIR) performance and running momentum (pIFT) between competition levels and positional groups in rugby league. Methods: Elite Australian National Rugby League (NRL), sub-elite [state-based competition (SRL); National Youth Competition (NYC); local league (LL)] and junior-elite (U18; U16) rugby league players completed the 30–15 Intermittent Fitness Test (30–15IFT) to quantify PHIR performance. Final running momentum (pIFT; kg·m∙s−1) was calculated as the product of body mass and final running velocity (VIFT; m∙s−1). Effect sizes (ESs) were used to examine between-group differences. Results: 30–15IFT performance was possibly to likely higher in NRL players (19.5 ± 1.0 km·h−1; mean ± SD) when compared with SRL (ES = 0.6 ± 0.5; ES ± CI), NYC (ES = 0.6 ± 0.5) and U18 (ES = 0.8 ± 0.5) players. NRL players (537 ± 41 kg·m·s−1) possessed possibly to very likely greater pIFT than SRL (ES = 0.7 ± 0.5), NYC (ES = 1.2 ± 0.5), U18 (ES = 2.3 ± 0.6), U16 (ES = 3.0 ± 0.7) and LL players (ES = 2.0 ± 0.7). Middle forwards attained a likely superior pIFT (ES = 0.5 − 1.8) to all other positional groups. Conclusions: This study demonstrated that elite rugby league players possess superior PHIR capacities, whilst highlighting that pIFT can account for the disparities in body mass between groups.
Keywords
30–15 Intermittent Fitness Test, HIT, testing, rugby league, football
Date
2017
Type
Journal article
Journal
Science and Medicine in Football
Book
Volume
1
Issue
3
Page Range
244-250
Article Number
ACU Department
School of Behavioural and Health Sciences
Faculty of Health Sciences
Faculty of Health Sciences
Relation URI
Source URL
Event URL
Open Access Status
License
File Access
Controlled