Movement demands and running intensities of semi-professional rugby league players in a 9’s tournament

Inglis, Paul and Bird, Stephen P. ORCID: https://orcid.org/0000-0002-5607-3829 (2017) Movement demands and running intensities of semi-professional rugby league players in a 9’s tournament. Journal of Sports Science and Medicine, 16 (1). pp. 22-26. ISSN 1303-2968

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Abstract

The objective of the study was to describe the movement demands and running intensities of semi-professional rugby league players during a rugby league 9’s (RL9’s) tournament. Six semi-professional rugby league players competed in a RL9’s tournament over a two-day period comprising of six games. Movement demands and running intensities were recorded using Global Positioning System (GPS) devices providing data on distance and speeds. Data is presented as mean (95% Confidence Intervals) with changes (≥ 75%) likely to exceed the smallest worthwhile change (0.2) considered practically important. Outside backs performed significantly (p < 0.05) more relative VHSR (3.9 m [3.5-4.3] vs 2.4 m [2.1-2.8]) absolute (97.7 m [81.3 - 114.1] vs 22.6m [15.8 - 29.3]) and relative (5.0 m∙min-1 [4.2 - 5.9] vs 1.2 m∙min-1 [0.8 - 1.6]) sprint distance than the forwards. Outside backs also performed significantly (p < 0.05) more absolute (97.7 m [81.3 - 114.1] vs 43.9 m [27.2 - 60.7]) and relative (5.0 m∙min-1 [4.2 - 5.9] vs 2.3 m∙min-1 [1.4 - 3.2]) sprint distance than the adjustables. Moderate (0.6 – 1.2) to very large (> 2.0) decreases in performance variables were observed over the two days. The biggest magnitude of change over the two days was seen with very large decreases in relative HSR (- 2.10) and sprint (- 2.14) distance. Between playing groups, the outside backs had the biggest decrease in running intensity with a very large (- 2.32) significant (p < 0.05) decrease in VHSR on day 2 (3.3 m∙min-1 [2.5 – 4.1]) compared to day 1 (4.9 m∙min-1 [4.4 – 5.4]). Running intensities are de-creased during an intensified RL9’s tournament in semi-professional rugby league players. The observed decreases in running performances between playing groups are in agreement with previous research and may support the use of individualized player monitoring and recovery management during a RL9’s tournament-style competition.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Faculty/School / Institute/Centre: Current - Faculty of Health, Engineering and Sciences - School of Health and Wellbeing (1 Jan 2015 -)
Faculty/School / Institute/Centre: Current - Faculty of Health, Engineering and Sciences - School of Health and Wellbeing (1 Jan 2015 -)
Date Deposited: 27 Aug 2020 05:34
Last Modified: 11 Sep 2020 02:29
Uncontrolled Keywords: Rugby League, GPS, Monitoring
Fields of Research (2008): 11 Medical and Health Sciences > 1106 Human Movement and Sports Science > 110602 Exercise Physiology
11 Medical and Health Sciences > 1106 Human Movement and Sports Science > 110699 Human Movement and Sports Science not elsewhere classified
Fields of Research (2020): 42 HEALTH SCIENCES > 4207 Sports science and exercise > 420702 Exercise physiology
42 HEALTH SCIENCES > 4207 Sports science and exercise > 420799 Sports science and exercise not elsewhere classified
Socio-Economic Objectives (2008): E Expanding Knowledge > 97 Expanding Knowledge > 970111 Expanding Knowledge in the Medical and Health Sciences
URI: http://eprints.usq.edu.au/id/eprint/39304

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