Publications by authors named "Christy Greenleaf"

This study aimed to assess the internalization of sociocultural attitudes and appearance comparison among U.S. athletes with physical disabilities.

View Article and Find Full Text PDF

The study explored reasons for exercise as possible mediators of the relationship between body appreciation and exercise avoidance motivation and between body surveillance and exercise avoidance motivation. Using a cross-sectional design, 131 women with a body mass index (BMI) of 25 or higher completed measures of body surveillance, body appreciation, reasons for exercise, and exercise avoidance motivation. Mediation analyses indicated that appearance-oriented reasons for exercise partially mediated the body surveillance-exercise avoidance motivation relationship.

View Article and Find Full Text PDF

Background: Weight control behaviors (WCBs) typically involve appearance- or health-driven behaviors that may be influenced by physiological, psychological, or social factors. Sleep disturbances like insomnia are an important area of research for adolescent populations, as early intervention may result in improvements in other physical and mental health domains. The purpose of this study was to investigate the relationship of insomnia, psychosocial well-being, and current WCBs in healthy-weight female adolescents.

View Article and Find Full Text PDF

Public health guidelines for physical activity (PA) behaviors are being updated with 2018 as a proposed release date. Currently, ≥60 minutes of daily PA are recommended for youth. Thus, the purpose of this study was to investigate the association between reported days of aerobic PA and health-related fitness (HRF).

View Article and Find Full Text PDF

Despite significant health benefits of regular physical activity, over 60 percent of college women do not meet recommended physical activity guidelines to promote their health and health-related quality of life (HRQoL), a comprehensive construct including physical and psychosocial health functioning. The major purpose of this study was to examine the influences of individual (e.g.

View Article and Find Full Text PDF

Background: Adolescence is a critical time for the development of psychological well-being. Weight gain and the emergence of body image concerns during this period can lead to the development of negative psychological states. To explore this issue, we examined the relationship between weight control behavior (WCB; ie, trying to lose, gain, stay the same, or do nothing about weight) and levels of depression and self-esteem.

View Article and Find Full Text PDF

Up to 80% of individuals with eating disorders engage in dysfunctional exercise, which is characterized by exercising in excessive quantities often past the point of pain as well as compulsive feelings and negative affect when exercise is disrupted (Cook, Hausenblas, Crosby, Cao, & Wonderlich, 2015). Intuitive exercise involves an awareness of the senses while moving and attending to one's bodily cues for when to start and stop exercise, rather than feeling compelled to adhere to a rigid program (Reel, 2015). The purpose of this study was to design a measurement tool to evaluate the construct of intuitive exercise in research, treatment, and prevention settings.

View Article and Find Full Text PDF

The purpose of the present study was to investigate particular psychosocial predictors of obesity bias in prehealth professionals, which include the internalization of athletic and general body ideals, perceived media pressure and information, and achievement goal orientations. Exercise science undergraduate students (n= 242) filled out a survey containing questions of demographic characteristics, achievement goals, social-cultural attitudes toward appearance (using Sociocultural Attitudes Towards Appearance Questionnaire-3), and obesity bias measurements (using the antifat attitudes test and fat phobia scale). The results indicated that students were explicitly biased toward overweight and obese individuals, held had high task and ego goals, and had high internalization of an athletic body type ideal, as determined by mean scores being above the median values for each scale.

View Article and Find Full Text PDF

Background: A lot of evidence showed that boys and girls are at high risk of developing major or minor depression in adolescence. Increases in physical fitness have been associated with lower levels of depressive symptoms, yet the mechanisms that underlie (or mediate) this relationship have not been thoroughly examined.

Methods: 528 boys (mean age = 12.

View Article and Find Full Text PDF

Adolescence represents a pivotal stage in the development of positive or negative body image. Many influences exist during the teen years including transitions (eg, puberty) that affect one's body shape, weight status, and appearance. Weight status exists along a spectrum between being obese (ie, where one's body weight is in the 95th percentile for age and gender) to being underweight.

View Article and Find Full Text PDF

Purpose: Cross-sectional studies demonstrate a robust association between depression, physical activity, and cardiorespiratory fitness in adolescents, but longitudinal evidence that can better parse the direction of these effects is scarce and conflicting, and no such studies in adolescents have considered the importance of fitness (as opposed to physical activity per se) for preventing depression. Therefore, the present study sought to determine if cardiorespiratory fitness in the first year of middle school (sixth grade) would protect against developing depression a year later (seventh grade), even after controlling for other risk factors (i.e.

View Article and Find Full Text PDF

Adolescent girls commonly engage in weight management and dietary restriction with the hopes of changing their bodies to more closely approximate social body ideals. The purpose of this study was to examine biopsychosocial factors that predict dietary restraint. Participants (n=774, Mage=12.

View Article and Find Full Text PDF

A number of weight loss-related reality television programs chronicle the weight loss experience of obese individuals in a competitive context. Although highly popular, such shows may misrepresent the behavior change necessary to achieve substantial weight loss. A systematic, quantitative content analysis of Seasons 10-13 (n = 66 episodes) of The Biggest Loser was conducted to determine the amount of time and number of instances that diet, physical activity, or other weight management strategies were presented.

View Article and Find Full Text PDF

The purpose of this study was to examine the simultaneous relation of general and sport-specific pressures about body weight and shape, negative affect, and body satisfaction to drive for muscularity (DM) in male collegiate athletes. Participants were 183 male athletes who were drawn from three NCAA Division I institutions and represented 17 different sports. As hypothesized, after controlling for BMI and sport type, sport-specific pressures, negative affect, and body satisfaction were significant predictors, and accounted for 15-34% of the variance in muscularity-oriented body image and muscularity behaviors; general pressures however were not significantly related.

View Article and Find Full Text PDF

Objectives: During adolescence, significant changes occur in sleep (eg, decreased sleep duration and increased sleep problems). To date, few studies have examined whether self-reported sleep duration differences exist between races/ethnicities in early adolescence (ages 11-14 years).

Methods: This study compared sexes and race/ethnicity groups on self-reported sleep duration in a large (n = 1543; 48.

View Article and Find Full Text PDF

Despite a proliferation of research on disordered eating in female athletes, few studies have included male athletes. The purpose of this study was to determine which of five personality and psychological variables of interest (i.e.

View Article and Find Full Text PDF

Background: To date, research has focused primarily on psychological correlates of weight-based teasing. In this study, we extended previous work by also examining physical health-related variables (eg, physical self-concept and physical fitness [PF]).

Methods: Participants included 1419 middle school students (637 boys and 782 girls).

View Article and Find Full Text PDF

Dieting to lose weight, with its focus on restriction of caloric intake, may disrupt intuitive eating processes, though other forms of weight loss, such as exercising, which do not emphasize food may not. In a sample of 669 middle school boys and 708 girls, regardless of sex or exercising, dieting was related to feeling less free to eat what was wanted and to eating more to soothe emotions than to satisfy actual physical hunger. Exercising, independent of dieting, was associated with feeling less permission to eat what was wanted, but also eating to satisfy physical hunger as opposed to coping with emotional distress.

View Article and Find Full Text PDF

Purpose: To investigate the relations between sedentary behaviors and health-related physical fitness and physical activity in middle school boys and girls.

Methods: Students (n = 1515) in grades 6-8 completed the Youth Risk Behavior Survey sedentary behavior questions, the FITNESSGRAM physical fitness items, and FITNESSGRAM physical activity self-report questions.

Results: When students reported ≤ 2 hours per day of sedentary behaviors, their odds of achieving the FITNESSGRAM Healthy Fitness Zone for aerobic capacity, muscular strength and endurance, flexibility, and body composition increased.

View Article and Find Full Text PDF

Background: National physical activity guidelines have been developed for Americans. Interest lies in the relationship between meeting the national physical activity guidelines and physical fitness outcomes in youth. Theoretically, those who meet the physical activity guidelines are more physically fit, which translates to better health and reduced risk.

View Article and Find Full Text PDF

The Intuitive Eating Scale (IES; Tylka, 2006) initially was developed in a sample of college women to measure adaptive forms of eating, such as eating based on physiological rather than emotional cues. This study extends the work of Tylka (2006) and reports the psychometric evaluation of the IES in a sample of 515 middle-school boys and girls. Exploratory factor analysis identified 4 factors: Unconditional Permission to Eat, Eating for Physical Rather Than Emotional Reasons, Trust in Internal Hunger/Satiety Cues, and Awareness of Internal Hunger/Satiety Cues.

View Article and Find Full Text PDF

The purpose of the present study was to replicate and extend previous research by examining the moderating effects of self-esteem, physical self-concept, physical appearance comparisons, BMI, pubertal status, and cardiorespiratory fitness, on the internalization-body dissatisfaction relationship in middle school girls. Hierarchical multiple regression (HMR) was used to examine direct and moderating effects of these variables. Internalization was related directly and significantly to body dissatisfaction, as were the proposed moderators (i.

View Article and Find Full Text PDF

Background: Relatively little is known about how perceived weight controllability influences important psychological health factors among adolescents. Thus, the purpose of this study is to explore adolescents' weight controllability beliefs and how those beliefs influence weight-related attitudes and behaviors.

Methods: Adolescents (N = 369, mean age = 13.

View Article and Find Full Text PDF

A PHP Error was encountered

Severity: Warning

Message: fopen(/var/lib/php/sessions/ci_sessioniuirsvsh7lk7tcgf06kun31dvu9gpiqj): Failed to open stream: No space left on device

Filename: drivers/Session_files_driver.php

Line Number: 177

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: session_start(): Failed to read session data: user (path: /var/lib/php/sessions)

Filename: Session/Session.php

Line Number: 137

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once