نتایج جستجو برای: adolescent boys

تعداد نتایج: 84624  

Journal: :Pediatrics 2016
Raquel Nogueira Avelar E Silva Daphne van de Bongardt Petra van de Looij-Jansen Anne Wijtzes Hein Raat

OBJECTIVES To assess the prospective associations between mother-adolescent and father-adolescent relationship quality and early sexual intercourse initiation (ie, ≤16 years) among a large sample of Dutch adolescents. METHODS Two waves of data from the Rotterdam Youth Monitor, a longitudinal study in the Netherlands, were used. The analysis sample consisted of 2931 adolescents aged 12 to 16 y...

2016
Arthur Holmes

The boy problem is difficult of solution at any age. It waxes acute, however, at the critical period of a boy's life technically called adolescence, beginning with the age of twelve and running until about nineteen. It is at this particular time that the great changes of life both physical and mental come upon him, the main directions of his life are fixed, and the foundations of his character ...

Journal: :Psychology of addictive behaviors : journal of the Society of Psychologists in Addictive Behaviors 2011
Linnea R Burk Jeffrey M Armstrong H Hill Goldsmith Marjorie H Klein Timothy J Strauman Phillip Costanzo Marilyn J Essex

Adolescent alcohol use is common and has serious immediate and long-term ramifications. While concurrent individual and context factors are robustly associated with adolescent alcohol use, the influence of early childhood factors, particularly in interaction with child sex, are less clear. Using a prospective community sample of 362 (190 girls), this study investigated sex differences in the jo...

Journal: :The Journal of orthopaedic and sports physical therapy 2009
Mark Perry Leon Straker Peter O'Sullivan Anne Smith Beth Hands

STUDY DESIGN Cross-sectional survey. OBJECTIVES To assess the associations between adolescent back pain and fitness, motor competence, and body composition. BACKGROUND Although deficits in physical fitness and motor control have been shown to relate to adult back pain, the evidence in adolescents is less clear. METHODS AND MEASURES In this cross-sectional study, 1608 "Raine" cohort adoles...

Journal: :Public health nutrition 2014
Natalie Pearson Stuart J H Biddle Lauren Williams Anthony Worsley David Crawford Kylie Ball

OBJECTIVE To examine whether home availability of energy-dense snack foods mediates the association between television (TV) viewing and energy-dense snack consumption among adolescents. DESIGN Cross-sectional. SETTING Secondary schools in Victoria, Australia. SUBJECTS Adolescents (n 2984) from Years 7 and 9 of secondary school completed a web-based survey, between September 2004 and July ...

Journal: :مدیریت ورزشی 0
مهربان پارسا مهر استادیار دانشکده علوم اجتماعی دانشگاه یزد مستانه بلگوریان کارشناس ارشد دانشگاه یزد محسن سعیدی مدنی استادیار دانشکده علوم اجتماعی دانشگاه یزد

this paper aimed to investigate the relationship between components of social capital (security, trust, social norms, social networks and participation in social activities) and physical activity participation among the adolescent students in yazd city. the statistical population of the study included adolescent students (14-17 years old) from yazd city. 382 adolescents were randomly selected t...

Journal: :International journal of sport nutrition and exercise metabolism 2008
Dirk Aerenhouts Marcel Hebbelinck Jacques R Poortmans Peter Clarys

PURPOSE AND METHODS To investigate dietary habits of Flemish adolescent track and field athletes using a 7-d weighed-food record. Besides adequacy for growth, development, and physical performance, dietary health aspects were considered. RESULTS Twenty-nine girls and 31 boys, with minimum 2 yr of track and field training practice, were recruited. All participants had daily breakfast (girls 22...

2016
Eva Randell Lars Jerdén Ann Öhman Renée Flacking

UNLABELLED Few qualitative studies have explored adolescent boys' perceptions of health. AIM The aim of this study was therefore to explore how adolescent boys understand the concept of health and what they find important for its achievement. METHODS Grounded theory was used as a method to analyse interviews with 33 adolescent boys aged 16 to 17 years attending three upper secondary schools...

2017

4 Objective: To examine whether home availability of energy-dense snack foods mediates the 5 association between television viewing (TV) and energy-dense snack consumption among 6 adolescents. 7 Design: Cross-sectional. 8 Setting: Secondary schools in Victoria, Australia. 9 Subjects: Adolescents (n=2984) from Years 7 and 9 of secondary school completed a web10 based survey, between September 20...

Journal: :Computers in Human Behavior 2010
Malinda Desjarlais Teena Willoughby

0747-5632/$ see front matter 2010 Elsevier Ltd. A doi:10.1016/j.chb.2010.02.004 * Corresponding author. E-mail address: [email protected] (M. Using computers with friends either in person or online has become ubiquitous in the life of most adolescents; however, little is known about the complex relation between this activity and friendship quality. This study examined direct support ...

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