Browsing by Author "Browne, Steven"
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Item Antigravity Treadmill in Rehabilitation After Hip Labral Repair Arthroscopy(International Journal of Athletic Therapy and Training, 2021-09-24) DeSantis, Brandon M.; Kalman, Victor R.; Browne, StevenAntigravity treadmills are being used in rehabilitation programs but have not been used consistently with posthip labral repair arthroscopy surgeries. The purpose of this study was to review the posthip labral protocol used by eight National Collegiate Athletic Association Division I collegiate athletes (all ages 18–21) from multiple sports that used the antigravity treadmill as a bridge between “no running” and “on-ground running.” The authors found that athletes who did this returned to play between 4.5 and 7 months, had a better overall functional status, and had no re-injuries. This is the first known study of its kind available in the literature.Item Concussion is not associated with elevated rates of lower-extremity musculoskeletal injuries in National Football League Players(Physician and Sportsmedicine, 2022-05-27) Buckley, Thomas A.; Browne, Steven; Hunzinger, Katherine J.; Kaminski, Thomas W.; Swanik, Charles BuzObjective: Emerging evidence has identified an ~2x elevated risk of musculoskeletal (MSK) injury in the year following a concussion. Most of these studies have examined a single college/university athletic department and may lack generalizability to professional sports. Therefore, the purpose of this study was to assess the odds of post-concussion MSK injury utilizing publicly available National Football League (NFL) injury reports. Methods: Concussions were identified through a review of published NFL injury reports during the 2015, 2016, and 2017 regular seasons. Concussed players were matched by team and position, and injuries were tracked for both groups for the remainder of the season. A chi-square analysis compared the frequency of MSK injury in both groups and a Cox Proportional Hazard model calculated the risk of sustaining a subsequent MSK injury. Results: There were 322 concussed NFL players who met inclusion criteria and were successfully matched. From the time of concussion through the remainder of the season, 21.4% of the concussed players were injured and 26.4% of control participants were injured. There was no difference in MSK injury rates (p = 0.166), and the relative risk ratio was 0.90 for subsequent injury in the concussion group. There was no difference in the time to event for subsequent MSK between the two groups (p = 0.123). Conclusion: The primary finding of this study was no elevated risk of post-concussion MSK in NFL football players.Item The effect of concussion on subsequent lower injury in current NFL players(University of Delaware, 2018) Browne, StevenContext: Recent literature suggests individuals may be at an elevated risk for sustaining a subsequent injury following return to play from sport related concussion (SRC). National Football League athletes are underrepresented in this literature, and as football has one of the highest concussion incidence rates in sport, it is important to examine the relationship between concussion and musculoskeletal (MSK) injuries in this cohort. ☐ Objective: The first aim of this project was to assess the association and risk of lower extremity musculoskeletal injury (LEMSK) both prior and after concussion between team and position-matched players who sustained an SRC and players who did not during the same season. The second aim of this study was to examine the association and risk of LEMSK following concussion of position-matched players who sustained an SRC and those who sustained an injury that was non-lower extremity. ☐ Design: Cohort study ☐ Setting: Publicly available NFL injury report data. ☐ Patients or Other Participants: NFL athletes ☐ Main Outcome Measure(s): The concussion rate and the rate of LEMSK pre and post-concussion. ☐ Results: Chi square analysis showed no association between concussion and LEMSK post-concussion (x2 = 2.19, p = 0.17) for Aim 1 (concussed vs. non-concussed player/team matched controls) or Aim 2 (x2 = 2.58, p=0.13) (concussed vs non-concussed and non-LEMSK). There was a significant association between concussion and LEMSK during the pre-concussion time period (x2=15.22, p<.001) between players who sustained a concussion and those that did not. Odds ratio pre-concussion was 0.52 (95% CI: 0.37- 0.72), where the control group was more likely to sustain a LEMSK. For Aim1, the Cox proportional hazard model showed no significance for groups post-concussion, but statistical significance was identified pre-concussion (p<.001) where prior to sustaining a concussion, the non-concussed players were 1.72 times more likely to sustain a LEMSK than the concussed group. For Aim 2, the Cox model was not significant (p=0.14). ☐ Conclusion: Concussion did not increase the likelihood of appearing on the NFL injury report for LEMSK pre or post-concussion in NFL players. Both players with and without concussions are about at equal risk to sustain a LEMSK post-concussion, and players who did not go on to sustain a concussion were more likely to sustain a LEMSK than those who sustained a concussion prior to the concussion event. Players that sustained a non-LEMSK injury prior to their matches’ concussion week also did not show an increased risk to appear on the NFL injury report with a LEMSK compared to the concussed group.