نتایج جستجو برای: athlete active students mean age 232257 years old
تعداد نتایج: 2640776 فیلتر نتایج به سال:
Introduction: Genetic and health factors along with ethnicity and geographic location are factors that affect the time of puberty onset. The aim of the present study was to evaluate the mean age of onset of puberty and its stages in boys of Yazd. Methods: This cross- sectional study with random clustering sampling method was conducted on 1018 healthy 9-16 years old male students of Yazd. All c...
Athlete-driven informal sport play represents an important context for athlete development. However, in contrast to coach-driven organized sport, little is known about the interpersonal processes driving development in this context. The present study was an exploratory descriptive analysis of the interactive peer behaviors occurring in an informal sport play setting and their relationship to at...
Abstract Teachers come in daily contact with a number of students and colleagues and are likely to report high levels of job-related stress. This study aims to explore the effect of gender, age, years of teaching experience, teaching students with special educational needs and burnout on teacher stress. The participants were 384 Greek primary schoolteachers, aged 25 to 59 years old (mean age = ...
The purpose of this research is to investigate the relationship between sports and self-regulation school burnout in high students who are athletes nonathletes. Relational screening method was used research. 387 (188 athletes, 199 non-athletes) participated study. average age participants ± 15.9 years. participating were determined by convenience sampling method. data collected with Personal In...
Perfectionism has been identified as an antecedent of athlete burnout. However, to date, researchers examining the relationship between perfectionism and athlete burnout have measured perfectionism at a trait level. The work of Flett and colleagues (Flett, Hewitt, Blankstein, & Gray, 1998) suggests that perfectionism can also be assessed in terms of individual differences in the frequency with ...
CONTEXT Middle-age and elderly participants in athletic activities frequently encounter the chronic disabling process of osteoarthritis. Knowledge of the treatment of knee osteoarthritis is needed to keep the master athlete active. OBJECTIVE This article reviews the current scientific evidence regarding recommendations for the maturing athlete, specifically discussing the strengths and weakne...
this survery investigated the secondary school students attitude regarding parent- adolescent inter-relationships. the study covered 19 town districts in tehran. following a multi-stage process 150 girls and boys attending secondary school with an age range of 13-15 years were selected randomly. a two parts questionnaire was developed. the first part covered information on personal and soci...
background and objective: varicella is a benign childhood infection with considerable complication in none immune adults. the aim of this study was to survey varicella zoster virus (vzv) seroepidemiology in children, adolescents and medical students in children medical center, tehran, iran. material and methods: in this cross sectional study, serum sample of children, adolescents 10 to 18 years...
OBJECTIVE To assess the test-retest reliability and validity of the physical activity questions in the World Health Organisation health behaviour in schoolchildren (WHO HBSC) survey. METHODS In the validity study, the Multistage Fitness Test was administered to a random sample of year 8 (mean age 13.1 years; n = 1072) and year 10 (mean age 15.1 years; n = 954) high school students from New So...
substance abuse, violation and sexual behavior are the main reasons of fatality in adolescents and the youth. most risky behaviors including cigarettes, alcohol, drugs and unsafe sexual contacts occur under the age of 18. traditionally, sport is regarded as a means to encourage and develop healthy behaviors and a factor to protect and prevent risky behaviors. the present study studied 406 stude...
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