Cardiovascular diseases responsible for sudden unexpected death in highly conditioned athletes are largely related to the age of the patient. In most young competitive athletes (less than 35 years of age) sudden death is due to congenital cardiovascular disease. Hypertrophic cardiomyopathy appears to be the most common cause of such deaths, accounting for about half of the sudden deaths in youn...

BACKGROUND Physical activity (PA) is important for controlling childhood obesity, but a comprehensive PA model for school-aged children is lacking. OBJECTIVES Guided by the youth PA promotion (YPAP) model, this study estimated the direct and indirect effects of self-efficacy, enjoyment, parental influence, and environment on self-reported PA and pedometer steps. A secondary purpose was to exp...

effective knowledge sharing as one of the basic aspects of knowledge management can be considered as one of the most important successes in changing and complicated contexts of sport organizations. the aim of this study was to study the effects of intrinsic and extrinsic motivations on knowledge sharing in employees of physical education organizations of isfahan. the research method used descri...

With the proliferation of Weblogs (blogs) use in educational contexts, gaining a better understanding of why students are willing to utilize blog systems has become an important topic for practitioners and academics. While perceived enjoyment has been found to have a significant influence on behavioral intentions to use blogs or hedonic systems, few studies have investigated the antecedents of ...

Although the body mass index (BMI, kg/m2) is widely used as a surrogate measure of adiposity, it is a measure of excess weight, rather than excess body fat, relative to height. The BMI classification system is derived from cut points obtained from the general population. The influence of large muscle mass on BMI in athletes and young adults may misclassify these individuals as overweight and ob...

Relative age effect (RAE) is considered to bias the selection of young athletes and a cause exclusion many participants. The goal study was unveil effects birth quarter on physical performances set psychological constructs in groups corresponding specialization years. A surveys with cross-sectional data collected from 2015 2019 youth basketball used. Three hundred twenty-seven Brazilian players...

To cite: Cheng C-W, Liu AL-J. BMJ Case Rep Published online: [please include Day Month Year] doi:10.1136/bcr-2014204738 DESCRIPTION We present a case of a 15 year-old boy who experienced sudden left hip pain while sprinting. He had been training for the past 1 month and felt similar pain in his right hip 3 weeks earlier. Physical examination revealed severe tenderness near the left groin with l...