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Assessing the whole-match and worst-case scenario locomotor demands of international women's rugby union match-play.

Sheppy, E., Hills, S. P., Russell, M., Chambers, R., Cunningham, D.J., Shearer, D., Heffernan, S., Waldron, M., McNarry, M. and Kilduff, L.P., 2020. Assessing the whole-match and worst-case scenario locomotor demands of international women's rugby union match-play. Journal of Science and Medicine in Sport, 23 (6), 609 - 614.

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Official URL: https://www.jsams.org/article/S1440-2440(19)31251-...

DOI: 10.1016/j.jsams.2019.12.016

Abstract

OBJECTIVES: To profile the distances covered during international women's rugby union match-play and assess the duration-specific worst-case scenario locomotor demands over 60-s to 600-s epochs, whilst comparing the values determined by fixed epoch (FIXED) versus rolling average (ROLL) methods of worst-case scenario estimation and assessing positional influences. DESIGN: Descriptive, observational. METHODS: Twenty-nine international women's rugby union players wore 10Hz microelectromechanical systems during eight international matches (110 observations). Total, and per-half, distances were recorded, whilst relative total and high-speed (>4.4ms-1) distances were averaged using FIXED and ROLL methods over 60-600-s. Linear mixed models compared distances covered between match halves, assessed FIXED versus ROLL, and examined the influence of playing position. RESULTS: Players covered ∼5.8kmmatch-1, with reduced distances in the second- versus first-half (p<0.001). For worst-case scenario total (∼8-25%) and high-speed (∼10-26%) distance, FIXED underestimated ROLL. In ROLL, worst-case scenario relative total and high-speed distances reduced from ∼144-161mmin-1 and ∼30-69mmin-1 over 60-s, to ∼8089mmin-1 and ∼516mmin-1 in the 600-s epoch, respectively. Forwards performed less high-speed running over all epochs and covered less total distance during epochs of 60-s, 180-s, 420-s and 480-s, compared with backs. Front row players typically returned the lowest locomotor demands. CONCLUSIONS: This is the first study reporting the positional and worst-case scenario demands of international women's rugby union, and indicates an underestimation in FIXED versus ROLL over 60-s to 600-s epochs. Knowledge of the most demanding periods of women's rugby union match-play facilitates training specificity by enabling sessions to be tailored to such demands.

Item Type:Article
ISSN:1440-2440
Additional Information:Published online: 19 December 2019
Uncontrolled Keywords:Activity profiles ; Fatigue ; Monitoring ; Physiology ; Running ; Team sport ; Adult ; Athletic Performance ; Female ; Football ; Geographic Information Systems ; Humans ; Running ; Young Adult
Group:Faculty of Health & Social Sciences
ID Code:35604
Deposited By: Unnamed user with email symplectic@symplectic
Deposited On:09 Jun 2021 14:45
Last Modified:15 Aug 2021 08:29

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