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Objective: To describe shoulder-related injury rates (IRs), types, severity, mechanisms, and risk factors in youth ice hockey players during games and practices. Design: Secondary analysis of data from a 5-year prospective cohort study, Safe-to-Play (2013-2018). Setting: Canadian youth ice hockey. Participants: Overall, 6584 player-seasons (representing 4417 individual players) participated. During this period, 118 shoulder-related games and 12 practice injuries were reported. Assessment of Risk Factors: An exploratory multivariable mixed-effects Poisson regression model examined the risk factors of body checking policy, weight, biological sex, history of injury in the past 12 months, and level of play. Main Outcome Measures: Injury surveillance data were collected from 2013 to 2018. Injury rates with 95% confidence interval (CI) were estimated using Poisson regression. Results: The shoulder IR was 0.35 injuries/1000 game-hours (95% CI, 0.24-0.49). Two-thirds of game injuries (n = 80, 70%) resulted in.8 days of time-loss, and more than one-third (n = 44, 39%) resulted in >8 days of time-loss. An 83% lower rate of shoulder injury was associated with policy prohibiting body checking compared with leagues allowing body checking (incidence rate ratio [IRR], 0.17; 95% CI, 0.09-0.33). A higher shoulder IR was observed for those who reported any injury in the last 12-months compared with those with no history (IRR, 2.00; 95% CI, 1.33-3.01). Conclusions: Most shoulder injuries resulted in more than 1 week of time-loss. Risk factors for shoulder injury included participation in a body-checking league and recent history of injury. Further study of prevention strategies specific to the shoulder may merit further consideration in ice hockey. [ABSTRACT FROM AUTHOR]

Objectives: This study aimed to analyze changes in physical activity (PA) recommendations after pediatric concussions and examine the associations of patient and injury characteristics with physicians' PA recommendations. Design: Retrospective observational study. Setting: Concussion clinics associated with a pediatric hospital. Patients: Patients aged 10 to 18 years with a concussion diagnosis, presenting to the concussion clinic within 14 days of the injury were included. A total of 4727 pediatric concussions and corresponding 4727 discharge instructions were analyzed. Independent Variables: The independent variables for our study were time, injury characteristics (eg, mechanism and symptom scores), and patient characteristics (eg, demographics and comorbidities). Main Outcome Measures: Physician PA recommendations. Results: From 2012 to 2019, the proportion of physicians recommending light activity at an initial visit increased from 11.1% to 52.6% (P < 0.05) within 1-week postinjury and from 16.9% to 64.0% during the second week postinjury (P < 0.05). A significantly increased odds of recommending “light activity” (odds ratio [OR] = 1.82, 95% confidence interval [CI], 1.39-2.40) and “noncontact PA” (OR = 2.21, 95% CI, 1.28-2.05), compared with “no activity” within 1-week postinjury, was observed in each consecutive year. In addition, higher symptom scores at the initial visit were associated with lower likelihood of recommending “light activity” or “noncontact PA.” Conclusions: Physician recommendation of early, symptom-limited PA after a pediatric concussion has increased since 2012, which mirrors a shift in acute concussion management. Further research assessing how these PA recommendations may facilitate pediatric concussion recovery is warranted. [ABSTRACT FROM AUTHOR]