Associations of physical activity with body weight and fat in men and women

OBJECTIVE: Increasing physical activity is strongly advocated as a key public health strategy for weight gain prevention. We investigated associations of leisure-time physical activity (LTPA) and occupational/domestic physical activity with body mass index (BMI) and a skinfold-derived index of body fat (sum of six skinfolds), among normal-weight and overweight men and women.

DESIGN: Analyses of cross-sectional self-report and measured anthropometric data.

SUBJECTS: A total of 1302 men and women, aged 18-78 y, who were part of a randomly selected sample and who agreed to participate in a physical health assessment.

MEASUREMENTS: Self-report measures of physical activity, measured height and weight, and a skinfold-derived index of body fatness.

RESULTS: Higher levels of LTPA were positively associated with the likelihood of being in the normal BMI and lower body fat range for women, but few or no associations were found for men. No associations were found between measures of occupational/domestic activity and BMI or body fat for men or women.

CONCLUSION: By using a skinfold sum as a more direct measure of adiposity, this study extends and confirms the previous research that has shown an association between BMI and LTPA. Our results suggest gender differences in the relationship of leisure-time physical activity with body fatness. These findings, in conjunction with a better understanding of the causes of such differences, will have important public health implications for the development and targeting of weight gain prevention strategies.

The impact of sexual esteem, body esteem, and sexual satisfaction on psychological well-being in people with physical disability

The current study investigated the association between sexuality and psychological well-being in people with physical disabilities. A total of 1,196 participants completed the study. There were 748 participants who had a physical disability and 448 participants who were able-bodied. The results demonstrated that sexual esteem, body esteem, and sexual satisfaction were strong predictors of self-esteem and depression among people with physical disability, and that this relationship was stronger among people with physical disability than able-bodied participants. It was also found that body esteem was more closely associated with self-esteem in disabled women, while sexual esteem was more closely associated with self-esteem in disabled men. The results of the study suggest that researchers and clinicians who are concerned with the psychological health of people with physical disability should consider strategies to improve the body esteem and sexual well-being of people with physical disabilities.

Development of body modification and excessive exercise scales for adolescents

The present study was designed to develop a Body Modification Scale (BMS) to measure body change among adolescents and to modify an Excessive Exercise Scale (EES) into a shorter form for adolescents. Two hundred and twenty-one girls and 192 boys from Grades 7 to 10 completed the BMS and the EES. Factor analysis revealed three identical factors for the BMS for girls and boys: weight loss, weight gain, and muscle mass. Two identical factors for girls and boys were also revealed for the EES. Both factor structures were further validated on a separate sample of 286 adolescents (140 girls, 146 boys). The BMS and EES demon-strated excellent reliability (alpha > .86) and high test-retest reliability (alpha > .82) over 1 month. Good concurrent validity was also found for the weight loss factor of the BMS. These findings demonstrate the utility of these two scales for use with adolescents.

Body image and physical disability - personal perspectives

The current study used qualitative methodology to investigate the body image concerns of people with physical disabilities. Three males and four females aged between 22 and 50 years, in Melbourne, Australia, participated in the study. Three participants were heterosexual, two were homosexual and two described their sexual identity as predominantly heterosexual but ‘bicurious’. The data were gathered through individual interviews of approximately 2 h duration, where participants responded to a set of predetermined open-ended questions. The study found that bodily impairment had a negative influence on the participants’ psychological experiences, feelings and attitudes toward their own bodies. The impact of feedback from the social environment was highlighted, and there was evidence suggesting that individuals gradually adjust to their different bodies and increasingly accept their disabilities over time.

A biopsychosocial model for understanding body image and body change strategies among children

The present study was designed to assess the role of biopsychosocial factors in understanding body image concerns and cognitions and behaviors related to losing weight or increasing muscles among 507 children (270 girls and 237 boys) aged between 8 and 11 years. Biological, psychological, and sociocultural factors have been found to be relevant in understanding the development of body image concerns and weight loss strategies among children. However, these factors have not been examined together in a single study; thus, the relative influence of each factors and how these factors may interact is not known. In the current study, body mass index (BMI) was found to be a good indicator of girls' and boys' body dissatisfaction, while the main indicator of children's body change strategies was perceived pressure from parents, peers, and the media. Overall, there were more similarities than differences between girls and boys. The age between 8 and 11 years is a significant period to commence studying body image concerns and body change strategies, as it can be used to help us understand the emergence of gender differences in children's weight and muscle concerns.

Body image and strategies to lose weight and increase muscle among boys and girls

This study examined factors that influence body image and strategies to either lose weight or increase muscle among children. Participants were 237 boys and 270 girls. Body mass index (BMI), body dissatisfaction, cognitions and behaviors to both lose weight and increase muscles, as well as self-esteem and positive and negative affect, were evaluated. Self-esteem was associated with body satisfaction, positive affect predicted strategies to lose weight and increase muscles, and negative affect predicted body dissatisfaction and cognitions to lose weight and increase muscles. Boys were more likely to focus on changing muscles. Respondents with higher BMIs were more focused on losing weight but not muscle. The discussion focuses on health risk behaviors related to eating and exercise among children.

The education needs of caregivers of stroke survivors in acute and community settings

Stroke is a major cause of chronic illness in Australia, where it is estimated that between 200,000 and 250,000 people live with disabilities due to stroke. Given stroke's effect on survivors and the accompanying burden on caregivers, attention should be given to addressing the needs of caregivers of stroke survivors because they are central to supporting survivors living in the community. Research has shown that the information needs of caregivers are not being met across healthcare settings. Thus, some attention must be given to the development of educational materials that address caregiver needs. In this study we interviewed caregivers to determine their perspectives on support and educational needs at two different stages in the recovery of the stroke survivor: the acute hospital and the community. Despite a high level of uncertainty among caregivers in the acute and community settings, limited information was provided to assist them in their new role. A multifaceted approach would involve the development and implementation of specifically designed educational materials for caregivers, the use of a tool such as a patient-held record to assist in and improve the continuity and communication of care, and the provision of ongoing support from a stroke nurse practitioner who would follow stroke survivors from the acute setting to the community. This approach should be evaluated so that the important issue of addressing caregiver needs is given its due attention.

Media influences on body image and disordered eating among Indigenous adolescent Australians

There has been no previous investigation of body image concerns and body change strategies among indigenous Australians. This study was designed to investigate the level of body satisfaction, body change strategies, and perceived media messages about body change strategies among 50 indigenous (25 males, 25 females) and 50 non-indigenous (25 males, 25 females) Australian adolescents (mean age 14.05, SD = 1.05). Consistent with past studies, girls were more likely to be dissatisfied with their weight and engage in strategies to lose weight. However, contrary to expectations, indigenous adolescents engaged in more strategies to lose weight, increase weight, and increase muscles than did non-indigenous adolescents, despite perceiving fewer media messages about losing weight. Additional factors that may explain the findings and the need for further research with different cultural groups are highlighted.

A longitudinal study of body image and strategies to lose weight and increase muscles in children

A longitudinal study was used to examine age differences in the role of body mass index (BMI) and sociocultural pressures in predicting changes in body image and strategies to both lose weight and increase muscles among 443 children aged between 8 and 12 years (207 boys, 236 girls) over a 16-month period. The strongest predictors of body image and these strategies were BMI, the media and mothers, and to a lesser extent fathers and best friends. Girls were focused on losing weight, whereas boys were focused on both increasing muscle and losing weight. Surprisingly, there was a reduction in strategies both to lose weight and increase muscles as children approached adolescence. The implications of these findings for preventative educational programs for boys and girls are discussed.

Relationship between men's and women's body image and their psychological, social, and sexual functioning

This study was designed to examine the relationships between different aspects of body image and psychological, social, and sexual functioning throughout adulthood. The respondents were 211 men and 226 women (age range 18–86 years; mean = 42.26). Respondents completed measures of self-rated attractiveness, body satisfaction, body image importance, body image behaviors, appearance comparison, social physique anxiety, self-esteem, depression, anxiety, and social and sexual functioning. Body image was associated with self-esteem for all groups, but was unrelated to other aspects of psychological, social, and sexual functioning. There were some exceptions; a disturbance in body image was related to problematic social and sexual functioning among middle-aged men and to depression and anxiety symptoms in late adulthood among men and women. Middle-aged men who presented with the type of body image disturbance typical of women were more likely to have impaired interpersonal functioning. These results demonstrate that social aspects of body image appear to be important in understanding psychological functioning in later life.

Sociocultural influences on adolescent boys' body image and body change strategies

Society provides messages about how people should ideally look and previous research has indicated these messages, both the actual messages provided and the perception of the message, influence body image. Research into male body image has shown males are concerned with having a lean and muscular body and as such, may want to decrease fat and increase their muscles. This paper explored the influence of a range of messages from parents, peers, and the media on a number of different measures of 362 adolescent boys’ body image and body change strategies. Specifically, messages about shape, food, exercise, losing weight and increasing muscles were explored in relation to satisfaction with weight and muscles, and the use of strategies to decrease weight and increase muscles. The findings indicated that parental messages were the strongest influence on body image and that parents, the media, and to a lesser extent messages from male friends were the strongest predictors of body change strategies.

Evaluation of a prevention program to address body focus and negative affect among children

The current study evaluated a program to improve the body image and positive and negative affect of children. Participants were 368 children aged 8–12 years. The results demonstrated that boys placed more importance on and were less satisfied with their muscles; girls were less satisfied with their weight and the importance of weight increased with increasing age. Children with a large BMI were less satisfied with their weight. Boys in the intervention group showed reduced levels of negative affect over time. Further research is required to develop prevention and intervention programs to lower the effects of body dissatisfaction and negative affect among children.