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Subsequent injury in rugby sevens – More than just recurrence!
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Abstracts / Journal of Science and Medicine in Sport 20S (2017) 34–36
72 Subsequent injury in rugby sevens – More than just recurrence! L. Toohey 1,2,3,∗ , M. Drew 2,3 , L. Fortington 3 , C. Finch 1,3 , J. Cook 1,3 1
La Trobe University, Australia 2 Australian Institute of Sport, Australia 3 Australian Collaboration for Research into Injury in Sport and its Prevention (ACRISP), Australia Introduction: The unique training and competition demands of rugby sevens may expose players to an increased susceptibility to sustain multiple injuries. The prevalence of subsequent injury in rugby sevens has not been established. Thus the aim of this study was to investigate the prevalence and characteristics of subsequent injuries in rugby sevens. Methods: Fifty-five elite international ruby sevens players (30 men, age 24.4 ± 3.0; 25 women, age 23.0 ± 4.0) were monitored for injury over a two year surveillance period (2015–16). The injury definition used captured both sport-incapacity and the need for medical attention. Subsequent injuries were defined and categorised using an updated subsequent injury categorisation (SIC-2.0) model. The most common anatomical sites and nature of the initial index injuries and their associated subsequent injuries were identified. Relationships between the most common injury types and their associated subsequent injuries were determined. Results: A total of 246 injuries were sustained during the surveillance period, with every player sustaining at least one injury (median = 4, IQR = 4, range = 1–12). A total of 191 subsequent injuries were sustained by 46 of the players (84%). Less than 2% of the subsequent injuries were categorised as recurrent injuries (same site and nature), with almost 79% of subsequent injuries occurring at a different anatomical site and being of a different injury nature. The most common anatomical sites injured differed between initial index injuries: ankle (20.0%), thigh (20.0%) and the head (14.6%); and subsequent injuries: shoulder (15.7%), knee (15.2%) and thigh (13.1%). The most common nature of injury was similar between initial index injuries: joint sprains (30.9%) muscle injuries (16.4%), and nerve injuries (9.1%); and subsequent injuries: joint sprains (29.8%), muscle injuries (15.7%) and tendon injuries (9.9%). There was no difference observed for the percentage of time-loss (TL) injuries compared with non-time-loss (NTL) injuries between the sustained initial index injuries (TL = 30.9%, NTL = 69.1%) and subsequent injuries (TL = 30.4%, NTL = 69.6%). Discussion: Prevalence of subsequent injury in elite rugby sevens was found to be high with 84% of all players sustaining two or more injuries during the surveillance period, with a median of 4 injuries sustained. Recurrent injuries accounted for only a very
small percentage of the subsequent injuries sustained, with the majority of subsequent injuries being at a different anatomical site and with a different nature. These findings can inform tertiary prevention strategies to mitigate the risk of subsequent injury in this susceptible population. https://doi.org/10.1016/j.jsams.2017.09.263 73 Same, same but different workload risk profiles for men and women in rugby sevens M. Drew 1,2,∗ , L. Fortington 2 , L. Toohey 1,2,3 , C. Finch 2 1 Department of Physical Therapies, Australian Institute of Sport, Australia 2 Australian Centre for Research into Injury in Sport and its Prevention (ACRISP), Federation University Australia, Australia 3 School of Allied Health (Physiotherapy), Sport and Exercise Medicine Department, La Trobe University, Australia Introduction: No comparisons of the workload-injury relationship in the same sport across sexes currently exist. This study investigates whether there are differences in workload-injury risk for men and women in elite rugby sevens. Method: 28 men and 24 women international-level rugby sevens players across two consecutive seasons contributed data in 5516 individual training sessions across 1871 player-weeks. Incidence rate ratios were produced using Poisson regression and converted to absolute risk for the rolling average ACWR and exponentially weighted moving average ACWR (ACWREWMA ) of GPS derived external workloads. Results: Men and women exhibited different workloadinjury relationships. Men exhibited a lower incidence rate than females (IRRmen 0.31 95%CI 0.12-0.80). The model which included ACWREWMA identified two additional high-risk scenarios for men but not women. There was also a significant interaction observed between the ACWR and high chronic workloads using both the ACWR with EWMA and rolling averages. Conclusions: Workload-injury risk patterns differed by sex in international rugby sevens, with women exhibiting higher injury risks. Increased risk was observed when men undertook rapid increases in loads when coupled with chronic distances greater than 15,000 m.
https://doi.org/10.1016/j.jsams.2017.09.264
Abstracts / Journal of Science and Medicine in Sport 20S (2017) 34–36
72 Subsequent injury in rugby sevens – More than just recurrence! L. Toohey 1,2,3,∗ , M. Drew 2,3 , L. Fortington 3 , C. Finch 1,3 , J. Cook 1,3 1
La Trobe University, Australia 2 Australian Institute of Sport, Australia 3 Australian Collaboration for Research into Injury in Sport and its Prevention (ACRISP), Australia Introduction: The unique training and competition demands of rugby sevens may expose players to an increased susceptibility to sustain multiple injuries. The prevalence of subsequent injury in rugby sevens has not been established. Thus the aim of this study was to investigate the prevalence and characteristics of subsequent injuries in rugby sevens. Methods: Fifty-five elite international ruby sevens players (30 men, age 24.4 ± 3.0; 25 women, age 23.0 ± 4.0) were monitored for injury over a two year surveillance period (2015–16). The injury definition used captured both sport-incapacity and the need for medical attention. Subsequent injuries were defined and categorised using an updated subsequent injury categorisation (SIC-2.0) model. The most common anatomical sites and nature of the initial index injuries and their associated subsequent injuries were identified. Relationships between the most common injury types and their associated subsequent injuries were determined. Results: A total of 246 injuries were sustained during the surveillance period, with every player sustaining at least one injury (median = 4, IQR = 4, range = 1–12). A total of 191 subsequent injuries were sustained by 46 of the players (84%). Less than 2% of the subsequent injuries were categorised as recurrent injuries (same site and nature), with almost 79% of subsequent injuries occurring at a different anatomical site and being of a different injury nature. The most common anatomical sites injured differed between initial index injuries: ankle (20.0%), thigh (20.0%) and the head (14.6%); and subsequent injuries: shoulder (15.7%), knee (15.2%) and thigh (13.1%). The most common nature of injury was similar between initial index injuries: joint sprains (30.9%) muscle injuries (16.4%), and nerve injuries (9.1%); and subsequent injuries: joint sprains (29.8%), muscle injuries (15.7%) and tendon injuries (9.9%). There was no difference observed for the percentage of time-loss (TL) injuries compared with non-time-loss (NTL) injuries between the sustained initial index injuries (TL = 30.9%, NTL = 69.1%) and subsequent injuries (TL = 30.4%, NTL = 69.6%). Discussion: Prevalence of subsequent injury in elite rugby sevens was found to be high with 84% of all players sustaining two or more injuries during the surveillance period, with a median of 4 injuries sustained. Recurrent injuries accounted for only a very
small percentage of the subsequent injuries sustained, with the majority of subsequent injuries being at a different anatomical site and with a different nature. These findings can inform tertiary prevention strategies to mitigate the risk of subsequent injury in this susceptible population. https://doi.org/10.1016/j.jsams.2017.09.263 73 Same, same but different workload risk profiles for men and women in rugby sevens M. Drew 1,2,∗ , L. Fortington 2 , L. Toohey 1,2,3 , C. Finch 2 1 Department of Physical Therapies, Australian Institute of Sport, Australia 2 Australian Centre for Research into Injury in Sport and its Prevention (ACRISP), Federation University Australia, Australia 3 School of Allied Health (Physiotherapy), Sport and Exercise Medicine Department, La Trobe University, Australia Introduction: No comparisons of the workload-injury relationship in the same sport across sexes currently exist. This study investigates whether there are differences in workload-injury risk for men and women in elite rugby sevens. Method: 28 men and 24 women international-level rugby sevens players across two consecutive seasons contributed data in 5516 individual training sessions across 1871 player-weeks. Incidence rate ratios were produced using Poisson regression and converted to absolute risk for the rolling average ACWR and exponentially weighted moving average ACWR (ACWREWMA ) of GPS derived external workloads. Results: Men and women exhibited different workloadinjury relationships. Men exhibited a lower incidence rate than females (IRRmen 0.31 95%CI 0.12-0.80). The model which included ACWREWMA identified two additional high-risk scenarios for men but not women. There was also a significant interaction observed between the ACWR and high chronic workloads using both the ACWR with EWMA and rolling averages. Conclusions: Workload-injury risk patterns differed by sex in international rugby sevens, with women exhibiting higher injury risks. Increased risk was observed when men undertook rapid increases in loads when coupled with chronic distances greater than 15,000 m.
https://doi.org/10.1016/j.jsams.2017.09.264