The acute:chronic workload ratio in relation to injury risk in professional soccer
Article
Malone, Shane, Owen, Adam, Newton, Matt, Mendes, Bruno, Collins, Kieran D. and Gabbett, Tim J.. 2017. "The acute:chronic workload ratio in relation to injury risk in professional soccer." Journal of Science and Medicine in Sport. 20 (6), pp. 561-565. https://doi.org/10.1016/j.jsams.2016.10.014
| Article Title | The acute:chronic workload ratio in relation to injury risk in professional soccer |
|---|---|
| ERA Journal ID | 9776 |
| Article Category | Article |
| Authors | Malone, Shane (Author), Owen, Adam (Author), Newton, Matt (Author), Mendes, Bruno (Author), Collins, Kieran D. (Author) and Gabbett, Tim J. (Author) |
| Journal Title | Journal of Science and Medicine in Sport |
| Journal Citation | 20 (6), pp. 561-565 |
| Number of Pages | 4 |
| Year | 2017 |
| Publisher | Elsevier |
| Place of Publication | Australia |
| ISSN | 1440-2440 |
| 1878-1861 | |
| Digital Object Identifier (DOI) | https://doi.org/10.1016/j.jsams.2016.10.014 |
| Web Address (URL) | http://ac.els-cdn.com/S1440244016302304/1-s2.0-S1440244016302304-main.pdf?_tid=6bcd2264-3aa4-11e7-8f9e-00000aab0f27&acdnat=1494986531_f76e804cf0cb41a6322be40c849f2fa0 |
| Abstract | To examine the association between combined sRPE measures and injury risk in elite professional soccer. Design Observational cohort study. Methods Forty-eight professional soccer players (mean ± SD age of 25.3 ± 3.1 yr) from two elite European teams were involved within a one season study. Players completed a test of intermittent-aerobic capacity (Yo-YoIR1) to assess player's injury risk in relation to intermittent aerobic capacity. Weekly workload measures and time loss injuries were recorded during the entire period. Rolling weekly sums and week-to-week changes in workload were measured, allowing for the calculation of the acute:chronic workload ratio, which was calculated by dividing the acute (1-weekly) and chronic (4-weekly) workloads. All derived workload measures were modelled against injury data using logistic regression. Odds ratios (OR) were reported against a reference group. Results Players who exerted pre-season 1-weekly loads of ≥1500 to ≤2120 AU were at significantly higher risk of injury compared to the reference group of ≤1500 AU (OR = 1.95, p = 0.006). Players with increased intermittent-aerobic capacity were better able to tolerate increased 1-weekly absolute changes in training load than players with lower fitness levels (OR = 4.52, p = 0.011). Players who exerted in-season acute:chronic workload ratios of >1.00 to <1.25 (OR = 0.68, p = 0.006) were at significantly lower risk of injury compared to the reference group (≤0.85). Conclusions These findings demonstrate that an acute:chronic workload of between 1.00 and 1.25 is protective for professional soccer players. A higher intermittent-aerobic capacity appears to offer greater injury protection when players are exposed to rapid changes in workload in elite soccer players. Moderate workloads, coupled with moderate-low to moderate-high acute:chronic workload ratios, appear to be protective for professional soccer players. |
| Keywords | injury prevention; intermittent team sports; odds risk; training load; Yo-YoIR1 |
| ANZSRC Field of Research 2020 | 320225. Sports medicine |
| Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
| Byline Affiliations | Institute of Technology Tallaght, Ireland |
| Servette Football Club, Switzerland | |
| S.L. Benfica Football Club, Portugal | |
| Gabbett Performance Solutions, Australia | |
| Institution of Origin | University of Southern Queensland |
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