Williams, RobertGillham, ScottHighton, JamieTwist, Craig2020-09-022020-09-022020-09-10Williams R., Gillham, S., Highton, J., & Twist, C. (2021). The influence of warm-up duration on simulated rugby league interchange match performance. Science and Medicine in Football, 5(2), 137-143. https://doi.org/10.1080/24733938.2020.18195582473-393810.1080/24733938.2020.1819558http://hdl.handle.net/10034/623618This is an Accepted Manuscript of an article published by Taylor & Francis in Science and Medicine in Football on 10/09/2020, available online: https://doi.org/10.1080/24733938.2020.1819558Objective: The study was conducted to understand the effects of a short (10-minute) and a long (30-minute) duration warm-up on subsequent readiness to exercise and movement during simulated rugby league match play. Methods: Using a randomised cross-over design, 13 male rugby players (age: 23.6 ± 4.1 y) completed a 10- or 30-minute warm-up immediately before 2 x 23 min rugby league movement simulation protocol. Comparisons of the responses to the warm-up and during the simulation were made between each trial. Results: Total distance, high- and low speed running and tympanic temperature (ES = 0.56 to 20.8) were all higher in the 30 min warm-up, with differences in relative distance and heart rate unclear (ES = -0.36 to 0.06). Differences in participants’ readiness to exercise after the warm-ups were unclear (ES = 0.25). Differences between trials for movement characteristics (ES = -0.13 to -0.32), RPE (ES = -0.13 to 0.04) and B[La] after the simulation were mostly unclear, with only trivial changes in high-speed running (ES = 0.08) and a lower heart rate (ES = -0.26) between the two playing bouts after the 30 min warm-up trial. Conclusion: Practitioners can use warm-ups between 10 or 30 minutes for rugby league interchange players without any implications for subsequent match running performance.https://creativecommons.org/licenses/by-nc-nd/4.0/Pre-conditioningintermittent runningcollision sportArticle2473-4446Science and Medicine in Football