This study was undertaken to investigate sex role influences on Turkish adolescents' self-identity process as part of an international self-identity research project. Specifically, the purpose of this study was to examine the role gender plays in the value systems of Turkish adolescents through a questionnaire. A total of 154 male and 119 female adolescents mainly at age 14 through 17 from urba...

Sport provides a context in which mate choice can be facilitated by the display of athletic prowess. Previous work has shown that, for females, team sport athletes are more desirable as mates than individual sport athletes and non-participants. In the present study, the perceptions of males and females were examined regarding potential mates based on sport participation. It was predicted that t...

Patellar instability has been extensively studied in selected, high-risk cohorts, but the epidemiology in the general population remains unclear. A longitudinal, prospective epidemiological database was used to determine the incidence and demographic risk factors for patellar dislocations presenting to emergency departments of the United States. The National Electronic Injury Surveillance Syste...

The possible interaction between exogenous reproductive hormones and athletic performance in females is an important issue that has been the topic of debate for at least four decades.  ere are numerous review articles on the e€ ect of oral contraceptives (OC) on athletic performance, however we feel that these reviews are insu cient as they do not include all categories of hormonal contracept...

There is increasing evidence for strong genetic influences on athletic performance and for an evolutionary "trade-off" between performance traits for speed and endurance activities. We have recently demonstrated that the skeletal-muscle actin-binding protein alpha-actinin-3 is absent in 18% of healthy white individuals because of homozygosity for a common stop-codon polymorphism in the ACTN3 ge...

BACKGROUND Anterior cruciate ligament (ACL) injury rates are affected by frequency and level of competition, sex, and sport. To date, no study has sought to quantify sport-specific yearly risk for ACL tears in the high school (HS) athlete by sex and sport played. PURPOSE To establish evidence-based incidence and yearly risk of ACL tears in HS athletes by sex for sports performed at the varsit...

annual Celebration of Student Research and Creative Activity. Undergraduate research, as one of the signature experiences of a Xavier education, allows our students to do more than study their discipline; instead they become practitioners of their discipline. In their classes, they may study philosophy, science and art; through research with faculty mentors, they become philosophers, scientists...

one of the methods to recognize national background and roots, also to maintain historical and cultural nature is to study different dimensions of physical, martial and athletic activities in ancient iran. the aim of the present study was to identify different sport fields and equipment in ancient iran using content analysis of nine versions of ferdowsi’s “shahnameh” and related literature. als...

Concerning about the social relationship is an important issue in classic and contemporary sociology. The contemporary sociologists employ the concept of social capital to study  the quality and quantity of social relationship within the society. Social capital refers to the capital and resources which people can gain by having ties with each others. For this reason, researchers seek to identif...

Maximal neuromuscular power is an important determinant of athletic performance and also quality of life, independence, and perhaps even mortality in patient populations. We have shown that dietary nitrate (NO3- ), a source of nitric oxide (NO), improves muscle power in some, but not all, subjects. The present investigation was designed to identify factors contributing to this interindividual v...