Accuracy of self-reported weight and role of gender,body mass index,weight satisfaction,weighing behavior,and physical activity among rural college students

This study measured accuracy of self-reported body mass index (BMI), particularly weight, in a college population. The main purpose was to examine the role of gender, BMI, body weight satisfaction, weighing frequency and physical activity level in accuracy (weight difference, percent weight difference, and absolute weight difference). Students (N = 405; 56% female) completed a questionnaire and 325 agreed to have their height and/or weight measured. Gender, BMI and activity level were significantly associated with weight difference and percent weight difference while BMI, activity level and weighing frequency were associated with absolute weight difference. However, interactions between BMI and physical activity were found. Our findings indicate that women and heavier individuals underestimate weight.     

Contributions of weight perceptions to weight loss attempts: Differences by body mass index and gender

Previous studies have consistently observed that women are more likely to perceive themselves as overweight compared to men. Similarly, women are more likely than men to report trying to lose weight. Less is known about the impact that self-perceived weight has on weight loss behaviors of adults and whether this association differs by gender. We conducted a cross-sectional analysis among an employee sample (n = 899) to determine the association of self-perceived weight on evidence-based weight loss behaviors across genders, accounting for body mass index (BMI) and demographic characteristics. Women were more likely than men to consider themselves to be overweight across each BMI category, and were more likely to report attempting to lose weight. However, perceiving oneself to be overweight was a strong correlate for weight loss attempts across both genders. The effect of targeting accuracy of self-perceived weight status in weight loss interventions deserves research attention.     

Relationship of perceived physical self-concept and physical activity level and sex among young children

The aim of this study was to investigate the relationship between level of physical activity and perceived physical self-concept of young children. The sample comprised 364 children from Slovenia, aged 6.4 yr. (SD = 0.3), of which 179 were boys and 185 girls. Parents and teachers reported children's physical activity using the Harro questionnaire. We divided children into Low and High Activity groups based on their mean scores. The children completed Stein's Children's Physical Self-concept Scale, which assesses Global Physical Self-concept and the subdomains of Physical Performance, Physical Appearance, and Weight Control behavior. Two-way analysis of variance with both sex and physical activity levels, and their interaction were used to examine differences in Physical Self-concept. There were significant differences between the Low and High Activity groups on scores for global Physical Self-concept Scale, Physical Performance, and Weight Control, on which children from the High Activity group scored higher; whereas on the subscale Physical Appearance, there were no significant differences. There were no significant sex differences on the Physical Self-concept Scale. The most important conclusion of this research indicates the theoretical assumptions that Physical Activity and perceived Physical Self-concept are related. Direction of the relationship remains unclarified.     

Social cognitive correlates of physical activity among single mothers with young children

ObjectivesSingle mothers experience negative health consequences that might be reduced through participation in physical activity, yet little is known about physical activity correlates among this population. This study examined social cognitive theory (SCT) correlates of physical activity among single mothers with young children.DesignCross-sectional.MethodSingle mothers (N = 94) with at least one child less than 5 years old completed SCT questionnaires, wore an accelerometer for one week, and then completed the Godin Leisure Time Exercise questionnaire. Physical activity scores were standardized and averaged to yield a composite physical activity score.ResultsRegression analysis indicated that self-efficacy was a direct predictor of composite physical activity; in the final model planning was the only statistically significant predictor of composite physical activity scores.ConclusionsPlanning and self-efficacy might be important factors to include when designing physical activity interventions for single mothers.     

Relationships among attributes, physical fitness, and self-concept development of elementary school children.

The purpose of the investigation was to examine the relationships among children's selected attributes, health-related physical fitness; and self-concept development. Subjects were 97 elementary school children in Grades 1 through 6. Correlations were examined for significance and effect size among the attributes of age, weight, body mass index, four scores from the Health Related Physical Fitness Test, and the total score from the Martinek-Zaichkowsky Self-concept Scale for Children. A max R2 forward stepwise multiple regression analysis was performed to assess which attribute and physical fitness variables were the best predictors of self-concept scores. Analysis indicated that the one-variable model of weight was the best predictor of self-concept.     

Racial and gender differences in weight status and dietary practices among college students

A questionnaire was used to assess nutritional intake, weight status, and dietary practices among 630 U.S. college students. Body mass index (BMI) was calculated using self-reported heights and weights, and nutritional status was assessed via 24-hour recall. Sixty-four percent of the students had acceptable BMI levels (between 19 and 25); 16% of African-American females and 15% of African-American males had BMIs indicating obesity (30 or above). Approximately 18% of the students consumed 5 servings per day of fruits and vegetables, 7% consumed 6 or more grain products, and 53% consumed 2 or more dairy products. Twenty-seven percent reported never/rarely eating fast foods. Recommendations are presented for the development of culturally appropriate health education/promotion programs in order to help college students meet Healthy People 2010 objectives.     

Association between self-concept and body weight, gender, and pubertal development among male and female adolescents

This study examined the effects and interactions of gender, pubertal status, and body weight on the self-concept of 462 young adolescent Australian students from two different schools. All students enrolled in Years 7 and 8 completed the Self-Perception Profile for Adolescents, which includes several self-concept subscales and ratings of the importance of each subscale. The self-concept subscales ranked as most important by male and female students were Close Friendship, Scholastic Competence, and Job Competence. Females rated their ability to form close friendships significantly higher and of greater importance than did males. Standard body weight was related to students' Physical Appearance subscale scores, with higher weight students having lower self-concept, and postmenarcheal females having the poorest opinion of their physical appearance. Higher body weight males had lower scores on Athletic Competence, Job Competence, and Behavioral Conduct than did other males. Overweight females and normal weight males considered athletic competence to be more important than did other students. Pubertal status was related to students' scores on Athletic Competence, with postpubertal males who were not overweight scoring highest, and on Physical Appearance, with postmenarcheal females having the lowest opinion of their appearance. The mean self-concept score was significantly related to students' standard body weight, and there was an interaction between gender and puberty, with postpubertal males having the highest and postmenarcheal females the lowest self-concept score. The discrepancy score suggested that females felt they had failed to meet their ideal self-concept significantly more than did males. The results suggest that school programs should be implemented to provide exercise and job skill training suitable for all students, especially those who are overweight. These programs, while taking into account students' pubertal status, should aim to improve self-image without resulting in feelings of failure.     

Relationships among motor skill,perceived self-competence,fitness, and physical activity in young adults

PurposeThis large-scale, exploratory study sought to examine the associations between motor skill proficiency (MSP), perceived self-competence (PC), physical fitness (PF), and self-reported physical activity (PA) to assess the assumption that relationships among these variables found in childhood and adolescence persist into young-adulthood. Specifically, predictors of PF and PA were assessed. Additionally, the contributions body mass index (BMI) and gender made to these relationships, as well as that of process- versus product-oriented motor skills data, were studied. Finally, how these relationships differed by gender was explored.MethodsParticipants’ (n = 448) MSP was assessed using select measures from the TGMD-2 and the BOT-2, while PF was evaluated using the FitnessGram. Participants also completed surveys to assess PC (SPPCS), PA (past-week MAQ), and demographic information. Height and weight were collected to calculate BMI.ResultsModels predicting physical fitness had good fit to the observed data, with perceived athletic competence, locomotor skill, upper-limb coordination, BMI, and gender accounting for about 75% (R² = 0.748) of aerobic PF variance and about 48% (R² = 0.476) of variance in push-up performances. About 18% (R² = 0.178) of variance in curl-up performances was predicted by perceived athletic competence, locomotor skill, upper-limb coordination, and PA. The PA model demonstrated weaker predictive power, with only about 10% (R² = 0.097) of variance explained. When considering male and female models separately, female models demonstrated better fit when predicting all PF and PA outcome variables. BMI and gender operated as significant predictors to differing degrees across the various models.ConclusionsThere is compelling evidence to believe relationships found among MSP, PC, PF, and PA in childhood and adolescence also exist in early adulthood. However, differences in the roles of gender and physical fitness versus physical activity are likely to exist.     

The influence of body dissatisfaction on cardiovascular and strength-based physical activity by gender: a self-determination theory approach

Abstract

Physical activity—or lack thereof—is one behaviour that may help explain why individuals who are dissatisfied with their bodies experience poor health outcomes. Objective: The purpose of the present study was to examine the mediating role of behavioural regulations (i.e., autonomous and controlled) in the relation between body dissatisfaction and physical activity and to determine whether this mediated relationship was moderated by gender. Additionally, this relation was examined for both cardiovascular and strength-based physical activity. Design: A two-week daily-diary study was conducted. Measures: The Body Shape Satisfaction Questionnaire, the Behavioural Regulation in Exercise Questionnaire – 3, and the International Physical Activity Questionnaire were used to test the main hypotheses. Results: For men and women, body dissatisfaction was related to less frequent cardiovascular and strength-based activity due to lower levels of intrinsic regulation. In women, the relation between body dissatisfaction and activity (cardiovascular and strength-based) was partially mediated by controlled regulations (i.e., external and introjected). That is, women who were dissatisfied exercised more because they were more likely to feel that they had to appease others or themselves. Conclusion: The present study provides direction for targeting physical activity behaviours in college students who are dissatisfied with their bodies.     

Belief-level markers of physical activity among young adult couples: Comparisons across couples without children and new parents

The health benefits of regular moderate–vigorous intensity physical activity (MVPA) are well established, yet young adults, particularly parents, often show declines in MVPA and may represent a critical population for intervention. Theory-based correlates used to guide future interventions are scant in this population. The purpose of this study was to examine theory of planned behaviour (TPB) belief-level constructs as correlates of directly assessed MVPA across cohorts of couples without children and with their first child over the initial 12?months. Participants were 238 adults (102 not expecting a child, 136 expecting first child) who completed baseline demographics, belief measures of the TPB and seven-day accelerometry, followed by assessments at 6 and 12 months. Results showed select medium-sized belief-PA correlations with sex and cohort interactions. Overall, women had larger affect-based behavioural belief associations with MVPA than men (e.g. PA relieves stress), and among new parents, mothers showed larger associations with control over MVPA than fathers. Mothers also had larger associations between control beliefs and MVPA compared to women without children (e.g. domestic duties, bad weather). Extremely high means and low variability on the behavioural beliefs show limited room for possible changes in intervention while control beliefs had low means suggesting room for change. Interventions targeting control among new mothers may be paramount for increasing MVPA, yet the TPB yielded less insight into the targets for promoting MVPA among young men.     

Fitness, attitude toward physical education, and self-concept of elementary school children

Elementary school children scoring in the highest and lowest 26% or 27% of their classes on the Texas Physical Fitness test were compared for attitude toward physical education and self-concept. Data were collected on the Children's Attitude Inventory Toward Physical Education, a Game of Pairs for Preferences Among School Subjects, and the Children's Self-concept Scale. Analysis of variance indicated significant differences on all tests between boys high in fitness, girls high in fitness, boys low in fitness, and girls low in fitness. Subsequent Scheffé tests indicated that highly fit girls had significantly higher attitude and self-concept scores than boys low in fitness. Highly fit boys had higher self-concepts than boys low in fitness. No other group comparisons were significant. Pearson correlations indicated nonsignificant associations between fitness and attitude and self-concept for the four groups.     

Body esteem and body fat in British school children from different ethnic groups

The aim of the study was to examine the relationship between body esteem and body fat in British school children. Two hundred and seventy seven, 11–14-year-old children from central England took part in the study. Body esteem was measured using the Body Esteem Scale for children and percent body fat was determined by skin-fold measures. Results indicate that body esteem and adiposity were negatively related for the whole sample, for boys and girls and for White children, Black children and Asian children. Factorial ANOVA also indicated differences in body esteem according to gender and ethnicity. Boys and Black children had significantly higher body esteem than girls and Asian children respectively. Differences in body fat were also evident according to gender with boys being leaner than girls. No differences in body esteem or body fat were evident across school years.     

Relationship between dietary restraint, energy intake, physical activity, and body weight: a prospective analysis.

Dietary, activity, and body weight differences in high- and low-restrained eaters and the independent impact of dietary restraint on body weight change were evaluated in 287 adults (141 men, 146 women) followed over a 1-year period. Analyses of measures of energy intake, physical activity, and dietary restraint indicated that high-restrained eaters did not differ in physical activity compared to low-restrained eaters at baseline but were ingesting significantly fewer kcal/lb and a higher percentage of the diet from fat. Body mass was significantly greater in both high-restrained men and high-restrained women than in their low-restrained counterparts. Regression modeling procedures revealed that weight and body mass at baseline were related to weight gain in men. In contrast, weight gain in women was predicted by baseline weight and higher restraint scores. These results indicate that dietary restraint is associated with weight gain in women but not in men.     

The impact of weight, sex, and race/ethnicity on body dissatisfaction among urban children

The purpose of the current study was to examine the relative contributions of weight status, race/ethnicity, sex, and age on body dissatisfaction in a large group of diverse children. Participants were 4th–6th graders (N = 1212) in ten inner-city schools who participated in an obesity prevention study previously published. Children completed the body dissatisfaction subscale of the Eating Disorder Inventory-2 (EDI-2), and weight status was assessed by measured weights and heights. Multiple regression analyses were conducted. Relative weight status was the strongest predictor of body dissatisfaction, followed by race/ethnicity, and sex. Body dissatisfaction was greatest in obese, Asian, and female children. Overall, results indicated that children's body dissatisfaction varies based on relative weight status, as well as race/ethnicity and sex among urban children. Results highlight the strong need for additional research so that more definitive conclusions may be drawn regarding the development of body image among diverse groups of children.     

Selfie-posting on social networking sites,body surveillance,and exercise for weight control among Chinese young women with low body mass index

Under the perspective of self-perception theory and objectification theory, this study aims to examine the association between selfie-posting on social networking sites (SNSs) and exercise for weight control among Chinese young women, as well as the mediating role of body surveillance. A sample of 467 Chinese female students with a BMI lower than 24 were recruited. Participants voluntarily completed questionnaires assessing their selfie-posting behavior on SNSs, body surveillance, and their weight control motivation for exercise. The results show that selfie-posting on SNSs is positively associated with exercise for weight control, and that body surveillance significantly mediates this association. The results suggest that interventions targeting selfie behaviors on SNSs may be an effective way to prevent unhealthy exercise motivations, such as exercise for weight control, among young women with a low BMI.     

Interpersonal problem-solving ability and sociometric status in elementary school children

The relationships among a measure of problem-solving ability, school grade level, and interpersonal functioning as assessed by sociometric measures were investigated. Previous research has shown these relationships to be significant but the reliability and validity of the problem-solving measures used have been seriously questioned. This study attempted to replicate previous findings while using a reliable and valid measure of interpersonal problem solving. Two sociometric measures were administered to 463 second-, fourth-, and sixth-graders from which 179 pupils were sociometrically identified as populars, rejecteds, neglecteds, and controversials. These subjects were subsequently administered the Purdue Elementary Problem Solving Inventory. Dunn's multiple comparison procedure was used to analyze the existing relationships among grade levels and among sociometric categories. Statistical analysis revealed significant differences in interpersonal problem-solving ability among grade levels but no significant differences were found among sociometric categories. The implications of the findings for social skills training are discussed.     

Exploring body weight, voluntary activity, and intrinsic value in rats

Modeling activity-based anorexia, food-deprived rats consistently show that activity increases as weight decreases. This effect was explored in 8 food-deprived, Sprague-Dawley rats as potentially mediated by intrinsic value of activity. Running-wheel activity rates were recorded for free-fed weight, reduction to 90% of free-fed weight, and to 80% of free-fed weight. As expected, activity increased as weight decreased. Further, significant differences appeared in the trends of individual run rates when compared across all trials. These individual trends were expressed as varied rates of running, with extreme high and low run rates prevalent. The rewarding nature of exercise itself might serve to predict these trends in individual rats and reveal potential indicators for the development of activity-based anorexia.     

Psychological,social and physical environmental mediators of the SCORES intervention on physical activity among children living in low-income communities

ObjectivesThis study examined mediation effects of socio-ecological variables on accelerometer-determined physical activity among children in the Supporting Children's Outcomes using Rewards, Exercise and Skills (SCORES) intervention.DesignRandomized control trial mediation analysis.MethodsPrimary school children were randomly assigned the SCORES multi-component intervention or control group for the 12-month study. The outcome was accelerometer derived total moderate-to-vigorous physical activity (MVPA). Hypothesized mediators measured in children were physical activity enjoyment and perceived sport competence and social support. Hypothesized mediators measured in parents were family social support, access to physical activity facilities and equipment at home, and perceived access to physical activity opportunities in the local community. Mediation analyses were conducted using multi-level linear analysis in MPlus.ResultsThere were significant intervention effects for social support from teachers (A = 1.73, SE = 0.88, p = 0.048) and parental perceived access to physical opportunities in the local community (A = 2.69, SE = 1.12, p = 0.016). There were significant associations between changes in perceived sport competence (B = 0.48, SE = 0.36, p = 0.027), parental perceived access to physical activity opportunities in the local community (B = 0.60, SE = 0.26, p = 0.021), and changes in total MVPA. Parental perceived access to physical activity opportunities in the local community was found to have a significant mediating effect on total MVPA (AB = 1.61, 95% CI = 0.06 to 3.95, proportion 13%).ConclusionsParental perceived access to physical activity opportunities in the local community is a potential mechanism of behavior change for children and mediated the effect of the SCORES intervention on objectively measured physical activity.     

Associations among body dissatisfaction,gender, and three latent profiles of religiosity

Body dissatisfaction is a too-common issue for young women in the US. Body dissatisfaction is a rising issue with young men too, although their average body dissatisfaction remains lower than young women’s. Religiosity has been negatively linked to body dissatisfaction for women, but the relation for men is unclear. The current study (N?=?5104) built upon a previous latent profile analysis of a large, diverse sample of US. college students Multi-Site University Study of Identity and Culture (MUSIC). We examined whether body dissatisfaction scores were related to three religious classes, when depressive symptoms were controlled for, and whether gender moderated that potential relation. Body dissatisfaction scores were significantly related to religious class. Gender had a main effect although not a moderating effect: men had better body dissatisfaction than women did, and their religious class similarly affected their body dissatisfaction scores. Religiosity appears important for emerging adult men’s body dissatisfaction, like for emerging adult women.     

The effects of exergaming on physical activity among inactive children in a physical education classroom

Childhood obesity, which is due in part to lack of physical activity, is a serious concern that requires the attention of the behavioral community. Although excessive video game play has been noted in the literature as a contributor to childhood obesity, newer video gaming technology, called exergaming, has been designed to capitalize on the reinforcing effects of video games to increase physical activity in children. This study evaluated the effects of exergaming on physical activity among 4 inactive children in a physical education (PE) classroom. Results showed that exergaming produced substantially more minutes of physical activity and more minutes of opportunity to engage in physical activity than did the standard PE program. In addition, exergaming was socially acceptable to both the students and the PE teacher. Exergaming appears to hold promise as a method for increasing physical activity among inactive children and might be a possible intervention for childhood obesity.