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Zachary Y. Kerr, Andrew E. Lincoln, Shane V. Caswell, David A. Klossner, Nina Walker, and Thomas P. Dompier

injury surveillance research on both TL and NTL NCAA women’s lacrosse injuries is important for appropriate management and treatment by the team medical staff and may have important implications for injury prevention programs. Methods Design The current study utilized a descriptive epidemiology design

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Russell R. Pate, Barbara J. Long, and Greg Heath

This paper reviews the descriptive epidemiology of physical activity in adolescents. Large population-based studies were reviewed, along with smaller studies using objective monitoring of physical activity. Estimates showed that adolescents engage in physical activity of any intensity for a mean of one hour per day. Approximately two thirds of males and one quarter of females participate in moderate to vigorous activity for 20 min 3 or more days per week. Activity levels decline with increasing age across adolescence, and this decrease is more marked in females than in males. Comparison of these data to physical activity guidelines for adolescents suggests the vast majority are meeting the guideline of accumulating physical activity. However, a substantial number of males, and the majority of females, are not meeting the guideline for moderate to vigorous physical activity.

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Jessica R. Fairbairn and Kellie C. Huxel Bliven

compet*) • O utcome(s): (prevalence OR epidemiology OR rate OR incidence) AND (injury OR pain OR chronic OR dysfunct* OR impair* OR disabil*) AND (shoulder OR upper extremity OR upper limb OR glenohumeral) Sources of Evidence Searched • The Cochrane Library • PubMed • CINAHL • SPORTDiscus • Additional

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Zachary Y. Kerr, Susan W. Yeargin, Yuri Hosokawa, Rebecca M. Hirschhorn, Lauren A. Pierpoint, and Douglas J. Casa

research estimating approximately 4% of emergency transports are for EHI. 11 Because previous research on the epidemiology of EHI in high school sports either considered older study periods 4 , 5 or American football only, 12 updated data are needed to comprehensively reevaluate the EHI incidence among

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Richelle M. Williams, Kellie C. Huxel Bliven, Sarah N. Morris, Adrian J. Boltz, Hannah J. Robison, Avinash Chandran, and Alison R. Snyder Valier

patients. Therefore, the purpose of this study was to describe the epidemiology of NTL and TL injuries sustained by girls’ secondary school volleyball athletes to better understand how the demands of the sport translate to injury patterns so that athletic trainers are more prepared to prevent and manage

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Kevin M. Cross, Kelly K. Gurka, Susan Saliba, Mark Conaway, and Jay Hertel

:10.1093/eurpub/ckm050 10.1093/eurpub/ckm050 17569703 6. Yard EE , Schroeder MJ , Fields SK , Collins CL , Comstock RD . The epidemiology of United States high school soccer injuries, 2005–2007 . Am J Sports Med . 2008 ; 36 ( 10 ): 1930 – 1937 . PubMed ID: 18628486 doi:10

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Marcos Quintana-Cepedal, Miguel Ángel Rodríguez, Irene Crespo, Miguel del Valle, and Hugo Olmedillas

.02 (95% CI, 0.47 to 1.58) for noncontact injuries. Figure 2 Injuries per type of tissue. Data reported as percentage of total number of injuries. DK indicates  does not know; NA, no answer. Discussion This study details the epidemiology of injuries that occur in semiprofessional rink hockey players

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Prashant Meshram, Omar Yasser, Jacob Joseph, Kian Larijani, Andrea Lopes Sauers, Uma Srikumaran, and Edward G. McFarland

causing lower limb injures similar to those described for badminton. 7 Although the epidemiology of injuries in other racquet sports has been reported, 2 , 7 , 8 we are unaware of studies reporting the epidemiology of injuries in speedball. Our objective was to report injury patterns among Egyptian

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Brigid M. Lynch, Suzanne C. Dixon-Suen, Andrea Ramirez Varela, Yi Yang, Dallas R. English, Ding Ding, Paul A. Gardiner, and Terry Boyle

applied these methods. The potential outcomes approach stems from counterfactual reasoning, an epistemological approach to understanding causality. Pearl 20 (whose profound contribution to epidemiology has been described as the “marriage of the counterfactual and probabilistic approaches to causation

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Zachary Y. Kerr, Sarah Fields, and R. Dawn Comstock


Little is known about the epidemiology of dog sport–related injuries. This study examines injuries among handlers and dogs in the sport of dog agility.


A cross-sectional pilot study captured data on demographics, exposures, and injury for a sample of agility handlers and dogs. Logistic regressions predicted odds of injury.


Survey of 217 handlers and 431 dogs identified 31 handler injuries (1.55 training injuries per 1000 hours, 2.14 competition injuries per 1000 runs) and 38 dog injuries (1.74 training injuries per 1000 hours, 1.72 competition injuries per 1000 runs). Handlers most commonly injured knees (48.4%) and lower trunk (29.0%). Most common diagnoses were strains (51.6%) and sprains (32.3%). Obese handlers had increased odds of injury compared with normal weight handlers (OR = 5.5, P < .001). Dogs most commonly injured front paws (23.7%) and shoulders (15.8%). Most common diagnoses were strains (44.7%) and cut/scrapes (21.1%). Injury was positively associated with dog’s age (P < .05). Handlers more commonly reported positive physical, emotional, and social motivations for participation than competitive.


Despite many health benefits, dog agility poses a risk of injury to both handlers and dogs. Future research on specific mechanisms of injury should drive evidence-based injury prevention strategies.