[Purpose] This study aimed 1) to assess whether a prediction model for whole body skeletal muscle mass that is based on a sedentary population is applicable to young male athletes, and 2) to develop a new skeletal muscle mass prediction model for young male athletes. [Subjects and Methods] The skeletal muscle mass of 61 male athletes was measured using magnetic resonance imaging (MRI) and estim...

the aim of this study was to evaluate the effect of maltodextrin supplementation on blood glucose and anaerobic indices of the young male athletes. 30 young male athletes were selected as the sample and assigned to two groups: carbohydrate (cho: n=15; mean and sd age 16.67±0.8 years, height 171.27±5.22 cm, weight 67.87±4.29 kg) and control (cont: n=15; mean and sd age 16.73±1.03 years, height 1...

Background: Copenhagen hip and groin outcome score (HAGOS) is the only valid and reliable self-reported questionnaire for assessing symptoms and activity limitations of subjects with hip and groin problems. The aim of this study was to translate and culturally adapt the English version of the HAGOS to Persian and to evaluate its reliability in young athletes with hip and groin pain. Methods: T...

BACKGROUND For more than 20 years in Italy, young athletes have been screened before participating in competitive sports. We assessed whether this strategy results in the prevention of sudden death from hypertrophic cardiomyopathy, a common cardiovascular cause of death in young athletes. METHODS We prospectively studied sudden deaths among athletes and nonathletes (35 years of age or less) i...

This study explored the level and sources of EFL enjoyment among 120 Saudi college English majors. It also gender differences in correlation with achievement, autonomy self-efficacy. Students completed a researcher-developed 36-item questionnaire groping enjoyment, autonomy, self-efficacy enjoyment. Students’ GPAs were used as an index achievement. Data analysis revealed that associating studen...

background: progressive prevalence of anabolic steroid use and physical and mental consequences of these drugs are known as worldwide healthy problems. willingness to being fitness and having muscular body and unhealthy beliefs about anabolic steroids are determinant behavioral factors of anabolic storied use. the purpose of this study was to determine the behavioral reason of anabolic steroid ...

BACKGROUND There is a shortage of information about the factors that mediate physical activity intervention effects which involve youth. The purpose of this study was to examine whether personal, social and physical-environmental factors mediated the intervention effect on physical activity and whether gender and weight status moderated mediated effects in the Health In Adolescents Study - a sc...

PURPOSE The study of the right ventricular (RV) chamber has been recently improved by use of the 3D method. In young asymptomatic trained athletes, RV is not routinely investigated if not in suspected disease. This study is designed to test if the 3D method compared to 2D, adds information to study of RV morphology and function, in the early stages of myocardial remodeling of a group of young a...

the main aim of the present study was to examine the mediation effect of sport self-efficacy on the relationship between dimensions of perfectionism and competitive anxiety in a sample of iranian athletes. 233 volunteer athletes (145 boys, 88 girls) from different sport fields participated in this study. all participants were required to complete the competitive perfectionism scale (cps), the m...