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Can the workload–injury relationship be moderated by improved strength, speed and repeated-sprint qualities?

Malone, S, Hughes, B, Doran, DA, Collins, K and Gabbett, TJ (2018) Can the workload–injury relationship be moderated by improved strength, speed and repeated-sprint qualities? Journal of Science and Medicine in Sport. ISSN 1440-2440

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Objectives The aim of this study was to investigate potential moderators (i.e. lower body strength, repeated-sprint ability [RSA] and maximal velocity) of injury risk within a team-sport cohort. Design Observational Cohort Study. Methods Forty male amateur hurling players (age: 26.2 ± 4.4 yr, height: 184.2 ± 7.1 cm, mass: 82.6 ± 4.7 kg) were recruited. During a two-year period, workload (session RPE x duration), injury and physical qualities were assessed. Specific physical qualities assessed were a three-repetition maximum Trapbar deadlift, 6 × 35-m repeated-sprint (RSA) and 5-, 10- and 20-m sprint time. All derived workload and physical quality measures were modelled against injury data using regression analysis. Odds ratios (OR) were reported against a reference group. Results Moderate weekly loads between ≥ 1400 AU and ≤ 1900 AU were protective against injury during both the pre-season (OR: 0.44, 95%CI: 0.18–0.66) and in-season periods (OR: 0.59, 95% CI: 0.37–0.82) compared to a low load reference group (≤ 1200 AU). When strength was considered as a moderator of injury risk, stronger athletes were better able to tolerate the given workload at a reduced risk. Stronger athletes were also better able to tolerate larger week-to-week changes ( > 550 AU to 1000 AU) in workload than weaker athletes (OR = 2.54–4.52). Athletes who were slower over 5-m (OR: 3.11, 95% CI: 2.33–3.87), 10-m (OR: 3.45, 95% CI: 2.11–4.13) and 20-m (OR: 3.12, 95% CI: 2.11–4.13) were at increased risk of injury compared to faster athletes. When repeated-sprint total time (RSAt) was considered as a moderator of injury risk at a given workload (≥ 1750 AU), athletes with better RSAt were at reduced risk compared to those with poor RSAt (OR: 5.55, 95%: 3.98–7.94). Conclusions These findings demonstrate that well-developed lower-body strength, RSA and speed are associated with better tolerance to higher workloads and reduced risk of injury in team-sport athletes.

Item Type: Article
Uncontrolled Keywords: 1106 Human Movement And Sports Science, 1117 Public Health And Health Services
Subjects: R Medicine > RC Internal medicine > RC1200 Sports Medicine
Divisions: Sport & Exercise Sciences
Publisher: Elsevier
Date Deposited: 13 Mar 2018 10:54
Last Modified: 04 Sep 2021 10:40
DOI or ID number: 10.1016/j.jsams.2018.01.010
URI: https://researchonline.ljmu.ac.uk/id/eprint/8263
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