This study tested a structural equation model to estimate the relationship between health behaviors, body mass index (BMI), and self-esteem and the academic achievement of adolescents. The authors analyzed survey data from the 2000 study of "Youth in Iceland", a population-based, cross-sectional sample of 6,346 adolescents in Iceland.…

This paper contributes to studies on sociology and the body by exploring my bodily experiences as an Australian elite swimmer in an autoethnographic framework. More specifically, it focuses on the relationship between the regulatory practices of others on my body and my development of self-regulatory practices. The stories in this paper reveal…

The incidence of childhood overweight is especially troubling among low income Latino youth. Grand Canyon Trekkers (GCT) was implemented as a quasi-experimental study in 10 Title 1 elementary schools with a large Latino population to examine the effects of a 16-week structured walking program on components of health-related physical fitness: Body…

This study compared weight control strategies during the winter holidays among successful weight losers (SWL) in the National Weight Control Registry and normal weight individuals (NW) with no history of obesity. SWL (n = 178) had lost a mean of 34.9 kg and had kept greater than or equal to 13.6 kg off for a mean of 5.9 years. NW (n = 101) had a…

Objectives: To examine racial/ethnic differences in the dietary behaviors of overweight or obese adults using the 2007 California Health Interview Survey. Method: Data were obtained from the 2007 California Health Interview Survey, a population-based sample of noninstitutionalized adults in California. The sample included 26,721 adults aged 18…

Objective: To examine the effect of self-weighing frequency on weight change and body satisfaction. Design: Observational study based on findings from a 6-month randomized controlled telephone-based weight loss trial. Data collected at baseline and 6 months. Setting: Metropolitan community-based sample. Participants: Sixty-three obese adults. Mean…

We evaluated whether ultraendurance swimmers suffer a change of body mass, fat mass, skeletal muscle mass, total body water, and specific gravity of urine during a 12-hr swim in 12 male Caucasian ultraswimmers. Proton nuclear magnetic resonance of urine samples before and after the race was performed to detect alanine, lactate, and…

A randomized dietary intervention trial across 4 years examined diet, weight, and obesity incidence (body mass index [BMI] greater than or equal to 30 kg/m[superscript 2]) differences between study groups. Participants were 1,510 breast cancer survivors with BMI greater than or equal to 25 kg/m[superscript 2] at entry. Dietary intake was assessed…

The purpose of this study was to examine cardiac function following a 100-mile ride in high ambient temperatures by healthy, competitive cyclists. Methods: Subjects were six (n=6) competitive cyclists racing in a 100-mile road race. Measures (pre/post) included: body mass (kg); E:A ratio (ventricular compliance); stroke volume (ml); ejection…

The past decade's research on the use and effects of older (television, music, movies, magazines) and newer media (the Internet, cell phones, social networking) on adolescents' health and well-being is reviewed. A portrait of patterns of use of the media is provided and then the predictors and effects of those patterns on adolescents' mental…

Health-related physical fitness is an important risk factor of cardiovascular disease. While previous studies have identified children with developmental coordination disorder (DCD) to be less physically fit than typically developing (TD) peers, there is limited longitudinal research in this area. This study was undertaken to evaluate concomitant…

Background: The purpose of this study was to evaluate the effects of a nutrition education program designed to teach elementary school students and their parents, and to distinguish between more healthful and less healthful choices in diverse food categories. Methods: Three schools were assigned to receive the Nutrition Detectives[TM] program and…

The objective of this study was to determine the predictors of early-onset permanent hearing loss (EPHL) among undernourished infants in a low-income country where routine screening for developmental disabilities in early childhood is currently unattainable. All infants attending four community-based clinics for routine immunization who met the…

Objective: This study examined the relationship between adolescent weight status and food advertisement receptivity. Design: Survey-based evaluation with data collected at baseline (initial and at 2 months), and at follow-up (11 months). Setting: New Hampshire and Vermont. Participants: Students (n = 2,281) aged 10-13 in 2002-2005. Main Outcome…

The maximal rate of O[subscript 2] consumption (VO[subscript 2max]) constitutes one of the oldest fitness indexes established for the measure of cardiorespiratory fitness and aerobic performance. Procedures have been developed in which VO[subscript 2max]is estimated from physiological responses during submaximal exercise. Generally, VO[subscript…