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Results for “Sedentary Behavior”

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PubMed2004

Multigenerational family structure in Japanese society: impacts on stress and health behaviors among women and men.

Rapid population aging in Japan has led to rising demands for informal care giving. Traditionally, care giving for aging parents has fallen disproportionately on the shoulders of women living in multigenerational households. However, rising labor force participation by Japanese women, declining marriage and fertility rates, and women's changing expectations have combined to produce unprecedented strains on traditional multigenerational households where care giving to elders traditionally takes place. In this paper, we explored gender-specific relationships between family structure, stress and worries, and health behaviors, using linked data from two national surveys conducted in Japan: the 1995 Comprehensive Survey of the Living Conditions of People on Health and Welfare, and the 1995 National Nutrition Survey. We found that women in multigenerational households reported more care-giving worries, and also less future health and financial worries. Living with parents was associated with protective health behaviors (less smoking, less heavy drinking), but also more sedentary behavior among women, while men in "sandwich" families (i.e., living with both parents and children) reported heavier smoking. The association of family structure and health behavior was not mediated by worries. Living alone was associated with worse health for women. These findings suggest gender-specific patterns of worries and health behaviors that reflect both the health-protecting and health-damaging effects of living in multigenerational households.

Adult↗

PubMed2001

Sociodemographic differences in patterns of sedentary and physically active behavior in older children and adolescents.

UNLABELLED: Numerous studies have found that involvement in moderate-intensity and strenuous activity has positive effects on health. This study considered the prevalence of different aspects of physical activity and sedentary behavior in 11-16-y-olds based on a representative national survey of 3270 Icelandic primary schoolchildren (91% response rate). All-day sedentary behavior was extremely rare (< 1%), and the vast majority (91%) were physically active (> or = 3 times per week) during school or leisure time, thanks largely to school physical education. Only 39% were physically active (> or = 3 times per week) during leisure time, and only 29% engaged in regular (> or = 3 times per week) leisure time strenuous exercise. Girls were more sedentary, less leisure time physically active, and less involved in leisure time strenuous exercise. Sedentary behavior increased and physically active behavior decreased with age, especially after early adolescence. However, there were no age differences in strenuous leisure time exercise. Upper-class students were less sedentary and more physically active during leisure time than working-class students. Finally, rural students were more sedentary during leisure time, and less physically active than students from urban areas. An interaction was found between age and residence when predicting leisure time physical activity, indicating that the inverse age-activity relationship in urban areas is partly reversed in rural areas. CONCLUSION: Compulsory school physical education frequently failed to translate into voluntary physical involvement. Sociodemographic differences in physical activity were greater during leisure time, than during school and leisure time combined.

Adolescent↗

PubMed2005

Ecomorphology of the external flight apparatus of blackcaps (Sylvia atricapilla) with different migration behavior.

An analysis of the external flight apparatus of 700 blackcaps from eight different populations (sedentary to long-distance migrators) is presented. With increasing migration distances of populations, (1) wing length, aspect ratio, and wing pointedness increase; (2) wing load decreases; (3) slots on the wing tips become relatively shorter; (4) the alula tends to be shorter in relation to wing length; and (5) the tail is shorter in relation to wing length. Although body mass increases from southern to northern populations, changes in wing length and wing area are two to three times larger than expected for simple isometric relationships. Regarding the aerodynamic background of these changes, it can be stated that traits for energy-effective flight are more strongly developed and traits for maneuverability are less developed in birds traveling longer distances, presumably as a consequence of trade-offs. Nonmigratory blackcaps from Madeira and the Cape Verde islands do not always show the traits we would expect in view of their sedentary behavior. This can be seen as a result of recent colonization of these islands by migrants or of selection by factors other than migration behavior. In migratory populations, changes between the first and the second set of primaries during first complete molt show almost the same pattern as the changes from nonmigratory to migratory populations. During molt of the primaries, blackcaps of nonmigratory populations do not show these changes. Hybrids between migrating and nonmigrating blackcap populations (Moscow and Madeira) showed intermediate values between parent populations in wing length, wing shape, and wing area; in the other variables they resembled either parent population.

Aging↗

PubMed1997

Associations of health-related behaviors, school type and health status to physical activity patterns in 16 year old boys and girls.

Sedentary behavior often begins in childhood and is associated with the development of risk factors for many chronic diseases in adulthood. Physical activity is considered important in the prevention of unfavorable changes in the risk factors. We investigated whether health-related behaviors, school type and health status are associated to physical activity among adolescents. A questionnaire was sent to all Finnish 16-year-old twins in 1991-93. A total of 3,254 twins responded. The response rate was 88%. Physical activity was classified into five categories (very active, active, moderately active, hardly active, inactive) based on self-reported frequency and intensity of physical activity. The analysis considered all subjects as individuals. Smoking was strongly associated with physical activity among girls and boys. Those who smoked regularly were less active. The type of school was also associated with physical activity. In general, those who attended comprehensive school or high school were physically more active, while those in vocational schools, particularly boys, were less active. Girls in lower physical activity groups reported more psychosomatic symptoms. Associations of self-reported health-related behaviors, school type and health status to physical activity seem to be the same among boys and girls. However, as the more active students are in comprehensive school or high school and the less active in vocational school, and physical inactivity is related to smoking and use of alcohol, health education should be tailored by school type.

Adolescent↗

PubMed2004

Relation between physical activity and energy expenditure in a representative sample of young children.

BACKGROUND: Strategies for the prevention and treatment of childhood obesity require a better understanding of the relation between the pattern of free-living physical activity and total energy expenditure (TEE). OBJECTIVE: We assessed the relations between TEE and physical activity level (PAL) during engagement in different intensities of physical activity. DESIGN: We used a cross-sectional study of 104 children (median age: 5.4 y) in Scotland. TEE was measured with use of doubly labeled water (DLW), and resting energy expenditure was predicted to determine PAL. Time spent sedentary and in light-intensity activity and in moderate- and vigorous-intensity physical activity (MVPA) was assessed by accelerometry concurrent with DLW measurements. Correlation and regression were used to assess the relations between measures of sedentary behavior, intensities of activity, and PAL as the dependent variable. RESULTS: Time spent sedentary was negatively correlated with PAL (r = -0.33, P < 0.01), and time spent in light-intensity activity was positively correlated with PAL (r = 0.31, P < 0.01). In multiple regression analyses, both time spent sedentary and in light-intensity activities were significantly associated with PAL. Time spent in MVPA was not associated with PAL; engagement in MVPA was limited in this sample (median: 3% of waking hours; range: 0-14%). PAL was significantly higher in boys than in girls. CONCLUSION: In this sample and setting, PAL was not influenced by engagement in MVPA but was influenced by time spent sedentary and in light-intensity activities. This study suggests that in young children, MVPA could make only a minor contribution to free-living TEE and PAL.

Body Composition↗

PubMed2003

Cognitive-behavioral approaches in the management of obesity.

Many of the behavioral interventions designed to promote dietary change in individuals include medical assessment, initial assessment of diet history, assessing readiness, establishing dietary goals, self-monitoring, stimulus control training, training in problem solving, relapse prevention training, enlisting social support, nutrition education, dietary therapy, and ongoing contact to maintain progress. The comprehensive nature of a cognitive-behavioral weight management program is of value in modifying behaviors that are linked to adverse health effects and psychological distresses, without necessarily causing a drastic weight loss in obese individuals. The behavioral treatments for overweight and obesity directly modify behaviors that bear on health and illness, such as improving dietary choices, decreasing sedentary behaviors, and increasing habitual physical activity and exercises. Cognitive-behavioral treatment can be used to help overweight adolescents become more assertive in coping with the adverse social stigma of being overweight, enhance their self-esteem, and reduce their dissatisfaction with body image regardless of their weight loss. Cognitive-behavioral treatments seem to be more effective in children when delivered before puberty than they are for adults.

Adolescent↗

PubMed1993

Structure of health-enhancing behavior in adolescence: a latent-variable approach.

The structure of the interrelations among a variety of health-enhancing behaviors was examined using structural equation modeling analyses of questionnaire data from 1,280 middle school students and 2,219 high school students. The health-enhancing behaviors included seat belt use, adequate hours of sleep, attention to healthy diet, adequate exercise, low sedentary behavior, and regular toothbrushing. In the middle school sample, all of the health-enhancing behaviors correlated significantly but modestly with each other, except for sleep with toothbrushing. In the high school sample, all but three of the 15 correlations among the behaviors were significant. The results further show that a single underlying factor can account for the modest correlations among these health-enhancing behaviors in both samples. The generality of the single-factor model was also established for male, female, White, Hispanic, and Black students at each school level. These findings provide some support for the existence of health-related lifestyles in adolescence.

Adolescent↗

PubMed2006

Moms in motion: a group-mediated cognitive-behavioral physical activity intervention.

BACKGROUND: When examining the prevalence of physical inactivity by gender and age, women over the age of 25 are at an increased risk for sedentary behavior. Childbearing and motherhood have been explored as one possible explanation for this increased risk. Post natal exercise studies to date demonstrate promising physical and psychological outcomes, however few physical activity interventions have been theory-driven and tailored to post natal exercise initiates. The purpose of this study was to compare the effects of a group-mediated cognitive behavioral intervention based upon social-cognitive theory and group dynamics (GMCB) to a standard care postnatal exercise program (SE). METHOD: A randomized, two-arm intervention design was used. Fifty-seven post natal women were randomized to one of two conditions: (1) a standard exercise treatment (SE) and (2) a standard exercise treatment plus group-mediated cognitive behavioral intervention (GMCB). Participants in both conditions participated in a four-week intensive phase where participants received standard exercise training. In addition, GMCB participants received self-regulatory behavioral skills training via six group-mediated counseling sessions. Following the intensive phase, participants engaged in a four-week home-based phase of self-structured exercise. Measures of physical activity, barrier efficacy, and proximal outcome expectations were administered and data were analyzed using ANCOVA procedures. RESULTS AND DISCUSSION: ANCOVA of change scores for frequency, minutes, and volume of physical activity revealed significant treatment effects over the intensive and home-based phases (p's < 0.01). In addition, ANCOVA of change in mean barrier efficacy and proximal outcome expectations at the conclusion of the intensive phase demonstrated that GMCB participants increased their initial level of barrier efficacy and outcome expectations while SE participants decreased (p < 0.05). CONCLUSION: While both exercise programs resulted in improvements to exercise participation, the GMCB intervention produced greater improvement in overall physical activity, barrier efficacy and proximal outcome expectations.

Journal Article↗

PubMed2005

Can obesity prevention work for our children?

The prevalence of obesity in children and adolescents is higher than 20 years ago in all racial-ethnic, age, and gender groups. Research has lead to the discovery of many risk factors for obesity, which may help practitioners target at-risk individuals. Insight concerning obesity prevention can come from examining other public health programs, which center on prevention; such as smoking, seat belt use, and sexually transmitted disease. Another guide when establishing obesity prevention is evaluation of currently successful programs. Prevention and treatment interventions for childhood obesity should promote the replacement of unhealthy eating and exercise practices with healthier behaviors. The goal of prevention should always be maintenance of normal growth patterns, rather than weight loss. In predisposed children, sedentary, non-nutritious environments challenge metabolic capacity and promote overweight conditions, further inactivity and increased sedentary behaviors. This results in clinically significant obesity, reduced insulin sensitivity and ultimately type 2 diabetes later in life. Prevention of future chronic disease in children and adults may depend on our ability to prevent the onset of obesity in young children. This should be a primary goal of pediatricians, family health care professionals, and public health professionals.

Adolescent↗

PubMed2004

Open-loop feedback increases physical activity of youth.

PURPOSE: The number of youth that meet activity guidelines is decreasing and easy access to reinforcing sedentary behaviors competes with increasing physical activity. In the laboratory, open-loop feedback that used pedometer activity counts to gain access to sedentary alternatives doubled physical activity. This study evaluated the influence of open-loop feedback and reinforcement on physical activity and television (TV) time in a small clinical trial. METHODS: Children (8-12 yr old) were randomized to an open-loop feedback plus reinforcement intervention (N = 11) or no feedback, no reinforcement control (N = 7). Subjects wore an accelerometer for 6 wk and attended meetings to download the accelerometer. Accumulating physical activity counts gave subjects in the open-loop group access to TV time, controlled by a TV Allowance device, with 400 counts = 1 h of TV. The control group had no feedback for activity and free access to TV. RESULTS: The open-loop group had a 24% increase in physical activity, which was greater (P = 0.02) than the control group. TV time of the open-loop group was reduced by 18% or 20 min x d(-1) whereas the control group increased by 13 min x d(-1), but these were not significant changes. The change in time spent watching television was directly related to the change in BMI z-score (r = 0.69, P = 0.002). CONCLUSION: Open-loop feedback increases physical activity in children, thus helping children to achieve physical activity recommendations. Reductions in TV watching may reduce or minimize gains in body weight.

Biofeedback, Psychology↗

PubMed2004

Metabolic and behavioral characteristics of metabolically obese but normal-weight women.

A unique subset of individuals termed metabolically obese but normal weight (MONW) has been identified. These young women are potentially at increased risk for development of the metabolic syndrome despite their young age and normal body mass index. We seek to determine metabolic and behavioral factors that could potentially distinguish MONW women from young women with a normal metabolic profile.Ninety-six women were classified as MONW (n = 12) or non-MONW (n = 84) based on a cut point of insulin sensitivity (as estimated by the homeostasis model assessment). Potentially distinguishing phenotypes between groups measured included serum lipids, ghrelin, leptin, adiponectin, body composition and body fat distribution, resting and physical activity energy expenditure, peak oxygen uptake, dietary intake, dietary behavior, and family history and lifestyle variables. Despite a similar body mass index between groups, MONW women showed higher percent body fat, lower fat-free mass, lower physical activity energy expenditure, and lower peak oxygen uptake than non-MONW women. Plasma cholesterol level was higher in MONW women, whereas no differences were noted for other blood lipids, ghrelin, leptin, adiponectin, and resting energy expenditure. MONW women had lower dietary restraint scores than non-MONW women, but no differences were noted in disinhibition, hunger, and dietary intake. Stepwise regression analysis performed on all subjects showed that 33.5% of the unique variance of the homeostasis model assessment was explained with the variables of percentage of body fat (17.1%), level of dietary restraint (10.4%), and age (6%). Both metabolic and dietary behavioral variables contribute to the deleterious metabolic profile of MONW women. They display lower insulin sensitivity due potentially to a cluster of sedentary behavior patterns that contribute to their higher adiposity. Furthermore, cognitive attitudes toward food (i.e. dietary restraint) and concomitant lifestyle behaviors may play a role in regulating insulin sensitivity in MONW women.

Adiponectin↗

PubMed1991

Physical activity and hypertension in black adults: the Pitt County Study.

The relation of physical activity to hypertension was examined in 1751 Black adults in Pitt County, NC. More women (65%) than men (44%) were classified as sedentary. Sedentary behavior was not associated with the prevalence of hypertension in men, but was associated with a 31% increase in prevalence for women (sedentary-26.2%; active-20.0%; P less than .01). The association in women was independent of other risk factors for hypertension.

Adult↗

PubMed1994

Cost-benefit analysis of walking to prevent coronary heart disease.

OBJECTIVE: To quantify the cost-benefit relationship of walking to prevent coronary heart disease. DESIGN: Cost-benefit analysis. PARTICIPANTS: Hypothetical cohorts of sedentary men and women aged 35 to 74 years. MAIN OUTCOME MEASURES: Decision-analysis simulation was used to evaluate the cost-benefit relationship of walking, varying level of benefit from exercise, frequency of exercise to achieve benefit, participation rates, and costs of exercise and injury. RESULTS: At a relative risk of 1.9 for heart disease associated with sedentary behavior, $5.6 billion would be saved annually if 10% of adults began a regular walking program. A $4.3 billion savings is predicted if the entire sedentary population began walking regularly and the cost of the time an individual spends exercising is accounted for in those who dislike exercising. According to our baseline assumptions, walking is economically beneficial for men aged 35 to 64 years and for women aged 55 to 64 years. The threshold of relative risk at which economic benefit is found for walking in this population overall is estimated at 1.7, and under a volunteer model, most adults would benefit even at a relative risk of 1.15. CONCLUSIONS: There are significant sex and age differences in the economic benefits of walking to prevent heart disease. The value assigned to the time an individual spends exercising has a significant impact on the results. Overall, a substantial savings is predicted from encouraging sedentary individuals to participate in a regular walking program.

Adult↗

PubMed2006

Ethnic and sex variations in overweight self-perception: relationship to sedentariness.

OBJECTIVE: With increasing frequency, health promotion messages advocating physical activity are claiming weight loss as a benefit. However, messages promoting physical activity as a weight loss strategy may have limited effectiveness and cross-cultural relevance. We recently found self-perceived overweight to be a more robust correlate of sedentary behavior than BMI in Los Angeles County adults. In this study, we examined ethnic and sex differences in overweight self-perception and their association with sedentariness in this sample. RESEARCH METHODS AND PROCEDURES: We conducted bivariate and multivariate analyses of cross-sectional survey data from a representative sample of Los Angeles County adults. RESULTS: Women were more likely to perceive themselves to be overweight than men overall (73.2% of overweight/non-obese and 24.1% of average weight women vs. 44.5% of overweight/non-obese and 5.6% of average weight men) and within each ethnic group. African-Americans were least likely (41.3% of overweight/non-obese African-Americans self-identified as overweight) and whites were most likely to consider themselves overweight (60.6% of overweight/non-obese whites self-identified as overweight). Overweight (vs. average weight) self-perception was correlated with sedentariness among average weight adults (45.3% vs. 33.0%, p < 0.001), overweight adults (43.4% vs. 33.6%, p < 0.001), men (average and overweight: 38.4% vs. 27.8%, p < 0.001), overweight whites (41.9% vs. 29.7%, p = 0.0012), and African-Americans and Latinos (41.6% vs. 33.9%, p = 0.005). DISCUSSION: These data suggest that our society's emphasis on weight loss rather than lifestyle change may inadvertently discourage physical activity adoption/maintenance among non-obese individuals. However, further research is needed, particularly from prospective cohort and intervention studies, to elucidate the relationship between overweight self-perception and healthy lifestyle change.

Adult↗

PubMed1997

Physical activity in a multiethnic population of third graders in four states.

OBJECTIVES: This research assessed the amount of daily physical activity in a multiethnic sample of US third-grade students. METHODS: Physical activity interviews were conducted with 2410 third graders from 96 schools in four states. Blood pressure, cholesterol, body mass index, timed run for distance, physical-activity self-efficacy, and perceived support for physical activity were also assessed. RESULTS: Students reported a daily average of 89.9 minutes of moderate to vigorous physical activity, 34.7 minutes of vigorous activity, and 120.4 minutes of sedentary behavior; however, 36.6% obtained less than 60 minutes of moderate to vigorous physical activity daily, and 12.8% reported less than 30 minutes. Boys reported more physical and sedentary activity than girls; White children reported more activity than Black or Hispanic children; California children reported the most activity and Louisiana children the least. Geographic location, male gender, lower cholesterol, higher perceived efficacy in physical activity, and higher social support were associated with more physical activity. CONCLUSIONS: Average reported activity met the Year 2000 objectives; however, many students reported less than recommended amounts of activity. These findings support the need for health promotion programs that increase the number of physically active children.

Analysis of Variance↗

PubMed2006

A meta-analytic review of obesity prevention programs for children and adolescents: the skinny on interventions that work.

This meta-analytic review summarizes obesity prevention programs and their effects and investigates participant, intervention, delivery, and design features associated with larger effects. A literature search identified 64 prevention programs seeking to produce weight gain prevention effects, of which 21% produced significant prevention effects that were typically pre- to post effects. Larger effects emerged for programs that targeted children and adolescents (vs. preadolescents) and females, programs that were relatively brief, programs that solely targeted weight control versus other health behaviors (e.g., smoking), programs evaluated in pilot trials, and programs wherein participants must have self-selected into the intervention. Other factors, including mandated improvements in diet and exercise, sedentary behavior reduction, delivery by trained interventionists, and parental involvement, were not associated with significantly larger effects.

Adolescent↗

PubMed2005

Acculturation, parent-child acculturation differential, and chronic disease risk factors in a Mexican-American population.

Acculturation is typically defined in terms of individual responses to a dominant culture. In the present study, we examined the effects of different levels of acculturation among family members. Specifically, we looked at the health and risk behavior in Mexican-American children as related to a variety of psychosocial predictors, especially the differences in orientation toward Mexican- and Anglo-American cultures between them and their parents. Mother and child pairs (n = 106) noted their orientation toward both Anglo and Mexican cultures. Children's dietary and sedentary behaviors, tobacco and alcohol use (and susceptibility to use), and depressive symptoms were also measured. Males were more likely to be sedentary and consume higher levels of total fat and saturated fat, whereas girls reported higher levels of depression. Anglo-oriented youth consumed lower levels of calories from fat but also more alcohol than did their Mexican-oriented counterparts. The latter was particularly the case among those children who were relatively more Anglo oriented than were their parents. Parent-child acculturation differential in terms of the differences in Mexican orientation, in comparison, predicted susceptibility to tobacco use. However, the sum of the absolute values of these two differences predicted only lifetime alcohol use, and in a counter-intuitive direction. This familial measure of acculturation shows some promise, but additional formative research is needed to operationalize this construct.

Acculturation↗

PubMed1988

A "back door" approach to analysis of ethanol-associated risks and behavior.

Ethanol has been detected in the majority of medical examiner cases involving nonnatural death and in a substantial number of natural deaths. The higher the serum alcohol concentration (SAC), the greater were the odds that death was due to external (traumatic) causes. We identified 149 medical examiner cases that were positive for ethanol and negative for 11 major drug of abuse groups, and studied those cases to further clarify ethanol-related risk factors and behaviors. Based on terms of frequency of occurrence, the data identify SACs of 201 mg% to 300 mg% as a particularly high risk factor for sudden, unexpected, traumatic death. Traumatic deaths associated with SACs below 100 mg% were infrequent, and attendant opinions concerning the contributory role of ethanol must be made with circumspection. SACs below 150 mg% could not be used to predict whether or not the decedents had been engaged in active or sedentary behavior prior to death because both situations occurred with equal frequency. At SACs between 151 mg% and 350 mg%, active situations were observed three times as often as sedentary situations. When SACs were 350 mg%, sedentary situations were observed twice as often as active situations. Suicide victims and driver fatalities rarely showed SACs above 350 mg%; therefore finding such SACs in apparent suicidal or driver fatality situations should prompt a thorough investigation to rule out other possibilities.(ABSTRACT TRUNCATED AT 250 WORDS)

Accidents↗