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\"A year-by-year breakdown of every Stanley Cup-winning team, complete with rosters, scoring tables, playoff summary anecdotal stories and complementary stat boxes.\"-- Provided by publisher.

Background Although there is a growing understanding of the consequences of concussions in hockey, very little is known about the precipitating factors associated with this type of injury. Aim To describe player characteristics and situational factors associated with concussions in the National Hockey League (NHL). Methods Case series of medically diagnosed concussions for regular season games over a 3.5-year period during the 2006–2010 seasons using an inclusive cohort of professional hockey players. Digital video records were coded and analysed using the Heads Up Checklist. Results Of 197 medically diagnosed concussions, 88% involved contact with an opponent. Forwards accounted for more concussions than expected compared with on-ice proportional representation (95% CI 60 to 73; p=0.04). Significantly more concussions occurred in the first period (47%) compared with the second and third periods (p=0.047), with the majority of concussions occurring in the defensive zone (45%). Approximately 47% of the concussions occurred in open ice, 53% occurred in the perimeter. Finally, 37% of the concussions involved injured players’ heads contacting the boards or glass. Conclusions This study describes several specific factors associated with concussions in the NHL, including period of the game, player position, body size, and specific locations on the ice and particular situations based on a player's position.

BackgroundDetailed injury data are not available for international tournaments in field hockey. We investigated the epidemiology of field hockey injuries during major International Hockey Federation (Fédération Internationale de Hockey, FIH) tournaments in 2013.Materials and methodsFIH injury reports were used for data collection. All major FIH tournaments for women (n=5) and men (n=11) in 2013 were included. The main focus of this study was to assess the pattern, time, site on the pitch, body site and mechanism of each of the injuries. We calculated the average number of injuries per match and the number of injuries per 1000 player match hours.ResultsThe average number of injuries was 0.7 (95% CI 0.5 to 1.0) per match in women's tournaments and 1.2 (95% CI 0.8 to 1.7) per match in men's tournaments. The number of injuries per 1000 player match hours ranged from 23.4 to 44.2 (average 29.1; 95% CI 18.6 to 39.7) in women and 20.8 to 90.9 (average 48.3; 95% CI 30.9 to 65.8) in men. Most injuries occurred in the circle (n=25, 50%, in women, n=95, 51%, in men). The rate of injuries increased after the first quarter. Injuries to the head and face (n=20, 40%) were most common in women. The head/face (n=51, 27%) and the thigh/knee (n=52, 28%) were equally affected in men. The ball caused the most injuries, followed by the stick, collisions and tripping/falling. There were no deaths or injuries that required hospital treatment in the entire cohort.SummaryField hockey has a low incidence of acute injuries during competition.

Background Team bat-or-stick sports, including cricket, softball and hockey, are popular among women. However, little is known about the injury profile in this population. Objective The aim was to describe the incidence, nature and anatomical location of injuries in bat-or-stick sports played by women in a competitive league. Methods This review was prospectively registered (PROSPERO CRD42015026715). CINAHL, MEDLINE, PsycINFO, PubMed, SPORTDiscus were systematically searched from January 2000 to September 2016, inclusive. Peer-reviewed original research articles reporting the incidence, nature and anatomical location of injuries sustained by women aged 18 + years in competitive bat-or-stick sports were included. Two meta-analyses based on injury incidence proportions (injury IP) and injury rates per 1000 person-days of athletic exposure (AE) were performed. Results A total of 37 studies satisfied the inclusion criteria, and five had low risk of bias. The weighted injury IP was 0.42 [95% confidence interval (CI) 0.39–0.45]. The weighted injury rate was 6.12 (95% CI 6.05–6.18) overall, and greater in games [15.79 (95% CI 15.65–15.93)] than in practice [3.07 (95% CI 2.99–3.15)]. The ankle was the most commonly injured anatomical location, followed by the hand (including wrist and fingers), knee and head. Soft tissue and ligament injuries were most common types of injuries. Conclusion Injury prevention in women’s sports is a novel and emerging field of research interest. This review highlights that injury incidence is high among female bat-or-stick players, but little information is known about direct causal mechanisms. This review clearly establishes the need for enhancements to injury data collection. Without this information, it will not be possible to develop evidence-based injury prevention interventions.

Ice hockey is a high-speed, full-contact sport with a high risk of head/face/neck (HFN) injuries. However, men's and women's ice hockey differ; checking is allowed only among men.   To describe the epidemiology of HFN injuries in collegiate men's and women's ice hockey during the 2009-2010 through 2013-2014 academic years.   Descriptive epidemiology study.   Ice hockey data from the National Collegiate Athletic Association (NCAA) Injury Surveillance Program during the 2009-2010 through 2013-2014 academic years.   Fifty-seven men's and 26 women's collegiate ice hockey programs from all NCAA divisions provided 106 and 51 team-seasons of data, respectively.   Injury rates per 1000 athlete-exposures and rate ratios with 95% confidence intervals (CIs).   The NCAA Injury Surveillance Program reported 496 and 131 HFN injuries in men's and women's ice hockey, respectively. The HFN injury rate was higher in men than in women (1.75 versus 1.16/1000 athlete-exposures; incidence rate ratio = 1.51; 95% CI = 1.25, 1.84). The proportion of HFN injuries from checking was higher in men than in women for competitions (38.5% versus 13.6%; injury proportion ratio = 2.82; 95% CI = 1.64, 4.85) and practices (21.9% versus 2.3%; injury proportion ratio = 9.41; 95% CI = 1.31, 67.69). The most common HFN injury diagnosis was concussion; most concussions occurred in men's competitions from player contact while checking (25.9%). Player contact during general play comprised the largest proportion of concussions in men's practices (25.9%), women's competitions (25.0%), and women's practices (24.0%). While 166 lacerations were reported in men, none were reported in women. In men, most lacerations occurred from player contact during checking in competitions (41.8%) and player contact during general play in practices (15.0%).   A larger proportion of HFN injuries in ice hockey occurred during checking in men versus women. Concussion was the most common HFN injury and was most often due to player contact. Lacerations were reported only among men and were mostly due to checking. Injury-prevention programs should aim to reduce checking-related injuries.

Background: Concussions are potentially serious injuries. The few investigations of prevalence or incidence in youth ice hockey have typically relied on prospective reports from physicians or trainers and did not survey players, despite the knowledge that many athletes do not report probable concussions. Objective: This study sought to compare concussion rates in youth ice hockey that were estimated from a variety of reporting strategies. Methods: Rates were calculated from British Columbia Amateur Hockey Association (BCAHA) official injury reports, from direct game observation by minor hockey volunteers (such as coaches and managers), as well as from retrospective surveys of both elite and non-elite youth players. All research was conducted within the BCAHA. Results: Estimates from official injury reports for male players were between 0.25 and 0.61 concussions per 1000 player game hours (PGH). Concussion estimates from volunteer reports were between 4.44 and 7.94 per 1000 PGH. Player survey estimates were between 6.65 and 8.32 per 1000 PGH, and 9.72 and 24.30 per 1000 PGH for elite and non-elite male youth hockey, respectively. Conclusion: It was found that concussions are considerably under-reported to the BCAHA by youth hockey players and team personnel.

Objectives: To examine relative age and birth place effects in hockey players drafted to play in the National Hockey League (NHL) between 2000 and 2005 and determine whether these factors influenced when players were chosen in the draft. Methods: 1013 North American draftees were evaluated from the official NHL website, which provided birthplace, date of birth and selection order in the draft. Population size was collected from Canadian and American census information. Athletes were divided into four quartiles on the basis of selection date to define age cohorts in hockey. Data between the Canadian and American players were also compared to see if the optimal city sizes differed between the two nations. Results: Relative age and birthplace effects were found, although the optimal city size found was dissimilar to that found in previous studies. Further, there were inconsistencies between the Canadian and American data. Conclusion: Contextual factors such as relative age and size of birthplace have a significant effect on likelihood of being selected in the NHL draft.

Relative age effects (RAEs; when relatively older children possess participation and performance advantages over relatively younger children) are frequent in male team sports. One possible explanation is that coaches select players based on physical attributes, which are more likely witnessed in relatively older athletes. Purpose: To determine if coach selections are responsible for RAEs by comparing RAEs in male players who played competitive versus noncompetitive ice hockey. Method: Using chi-square, we analyzed the birth dates of 147,991 male ice hockey players who were 5 to 17 years old. Players' birth dates were divided into four quartiles, beginning with January to March, which coincides with Hockey Canada's selection year. Results: There were strong RAEs (p < .001) when players were selected to competitive teams by coaches through a tryout system. On noncompetitive teams that did not have coach selections, there were strong RAEs (p < .001) from 5 to 8 years old, but not 9 to 17 years old. Conclusions: Although coaches might perpetuate RAEs, other influential social agents might include parents, which ought to be investigated in future research.

ObjectiveTo examine the association between meeting physical activity (PA) volume recommendations and concussion rates in male ice hockey players aged 11–17 years.DesignPooled prospective injury surveillance cohort data from the 2011–2012, 2013–2014 and 2014–2015 youth ice hockey seasons.ParticipantsMale Alberta-based Pee Wee (aged 11–12 years), Bantam (aged 13–14 years) and Midget (aged 15–17 years) ice hockey players participating in any of the three cohorts were eligible (n=1726). A total of 1208 players were included after the exclusion criteria were applied (ie, players with new/unhealed injuries within 6 weeks of study entry, missing 6-week PA history questionnaires, missing game and/or practice participation exposure hours, players who sustained concussions when no participation exposure hours were collected).Outcome measuresDependent variable: medically diagnosed concussion. Independent variable: whether or not players’ self-reported history of PA (ie, hours of physical education and extracurricular sport participation) met the Canadian Society of Exercise Physiology and Public Health Agency of Canada recommendation of one hour daily during the 6 weeks prior to study entry (ie, 42 hours or more).ResultsThe PA volume recommendations were met by 65.05% of players who subsequently sustained concussions, and 75.34% of players who did not sustain concussions. The concussion incidence rate ratios (IRR) reflect higher concussion rates in players who did not meet the PA volume recommendations vs. players who met the PA volume recommendations among Pee Wee players (IRR 2.94 95% CI 1.30 to 6.64), Bantam players (IRR 2.18, 95% CI 1.21 to 3.93) and non-elite players aged 11–14 years (IRR 2.45, 95% CI 1.33 to 4.51).Conclusion and relevanceThe concussion rate of players who did not meet the Canadian PA volume recommendations was more than twice the concussion rate of players who met recommendations among male Pee Wee players, Bantam players and non-elite level players. Further exploration of the impact of public health PA recommendations in a sport injury prevention context is warranted.

Background: Ice hockey is a competitive sport and ice hockey injuries can be influenced by many physical and psychological factors. Young ice hockey players are especially vulnerable to injury due to their relative lack of experience and rapid physical growth during their juvenile years. Up to now there has been no survey of the physical, psychological, and environmental etiological factors based on the Korean high school ice hockey players population. Purpose: The purpose of our study was to evaluate, through a comprehensive survey, the incidence of ice hockey injuries according to age and the relationship between etiological factors and injuries in high school students. Study Design: A cross-sectional study. Methods: One hundred nineteen ice hockey players in Korean high schools were recruited for this study. The study was conducted by a self-administered questionnaire survey. The researcher explained the purpose of the survey and how to fill it out. Individual questionnaires were distributed to participants. Chi-squared tests were used to evaluate the relationship between the independent and dependent values. There was a significant difference between a player’s age and injury incidence (P = .018). The injury level of each position showed a significant tendency (P = .055). Age was highly correlated with the number of total injuries (P = .019). Results: The average demographic characteristics of those surveyed were age (16.7 years), play line (2.2), height (174.8 cm), weight (69.6 kg), and body mass index (23.4). The shoulder was the most frequent injury area and the knee was the most common cause of hospital visits. There was a higher injury incidence in older groups; however, there was no correlation with body mass index, position, and play line. The causative factors were divided into physical factors, psychological factors, and environmental factors. Generally, 3 factors were not closely regarded as etiologic factors of ice hockey injury. However, deficiency of fitness in the physical factor, aggressiveness in the psychological factor, and injury by other players in the environmental factor showed a high etiological correlation for ice hockey injury. Conclusion: The multiple aspects of this etiological factor analysis showed modest results. However, based on our results, in order to reduce the long-term implications of youth ice hockey injuries and associated public health costs, comprehensive efforts, including psychological and environmental factor modification, should be put in place. Key terms: Ice hockey, etiologic factor, high school player