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Daniel Berglind, Lena Hansson, Per Tynelius, Finn Rasmussen
BACKGROUND: Levels of physical activity (PA) affect health already at four years of age. The aims of this study were to describe levels and patterns of PA and sedentary time (ST) in a sample of four-year-old Swedish children and to assess the number of children achieving PA guidelines throughout the week. METHODS: Data from 540 four-year old children enrolled in the population-based PRIMROSE trial was used. PA was measured for a period of one week by the Actigraph GT3X+ accelerometer...
October 24, 2016: Journal of Physical Activity & Health
Lisa Groshong, Sonja A Wilhelm Stanis, Andrew T Kaczynski, J Aaron Hipp, Gina M Besenvi
BACKGROUND: Public parks hold promise for promoting population-level PA, but studies show a significant portion of park use is sedentary. Past research has documented the effectiveness of message-based strategies for influencing diverse behaviors in park settings and for increasing PA in non-park contexts. Therefore, to inform message-based interventions (e.g., point-of-decision prompts) to increase park-based PA, the purpose of this study was to elicit insights about key attitudes, perceived norms, and personal agency that affect park use and park-based PA in low-income urban neighborhoods...
October 24, 2016: Journal of Physical Activity & Health
Meghan K Edwards, Paul D Loprinzi
OBJECTIVE: Examine the independent association of sedentary behavior and cognitive function in older adults, as well as whether or not physical activity attenuates this potential association. METHODS: Data from the 1999-2002 National Health and Nutrition Examination Survey were used (N=2,472 adults 60-85 yrs). Sedentary behavior was subjectively assessed and the Digit Symbol Substitution Test (DSST) was employed to assess cognitive function. RESULTS: Among an unadjusted and an adjusted model not accounting for physical activity, only 5+ hrs/day (vs...
October 24, 2016: Journal of Physical Activity & Health
Dave H H Van Kann, S I de Vries, J Schipperijn, N K de Vries, M W J Jansen, S P J Kremers
Background Aim of the study was to test the 12-month effects of a multicomponent physical activity (PA) intervention at schoolyards on recess PA levels of 6th and 7th grade children in primary schools, combining Global Positioning System (GPS) and accelerometry data. Methods A quasi-experimental study design was used with 20 paired intervention and control schools. GPS confirmatory analyses were applied to validate attendance at schoolyards during recess. Data from 376 children from 7 pairs of schools were included in the final analyses...
October 24, 2016: Journal of Physical Activity & Health
J Graham Thomas, Andrew Seiden, Mikhail N Koffarnus, Warren K Bickel, Rena R Wing
OBJECTIVE: The objective of this study was to examine how sensitivity to short-term reward and long-term goal perseverance are related to body mass index (BMI; kg m(2)) in a large sample of men and women with and without obesity. METHODS: A total of 450 participants (56.2% male; 73.1% non-Hispanic White) with mean ± standard deviation age of 30.7 ± 10.4 years and BMI of 29.3 ± 8.2 completed online versions of the Delayed Reward Discounting task to measure sensitivity to short-term reward and the Grit Scale to measure long-term goal perseverance...
December 2015: Obesity Science & Practice
Luisa N Borrell, Lisa Graham, Sharon P Joseph
OBJECTIVES: To examine the association of neighborhood safety and support with overweight and obesity and whether these associations vary with age, sex, and race/ethnicity among children and adolescents. DESIGN: Cross-sectional. SETTING: United States. MAIN OUTCOME MEASURES: Childhood overweight and obesity. METHODS: We used data from the 2011-12 National Survey of Children's Health, a representative sample of US children and adolescents, for the analyses (N=40,730)...
October 20, 2016: Ethnicity & Disease
F M Mario, S K Graff, P M Spritzer
PURPOSE: To examine the effect of habitual physical activity (PA) on the metabolic and hormonal profiles of women with polycystic ovary syndrome. MATERIALS AND METHODS: Anthropometric, metabolic and hormonal assessment and determination of habitual PA levels with a digital pedometer were evaluated in 84 women with PCOS and 67 age- and body mass index (BMI)-matched controls. PA status was defined according to number of steps (≥7500 steps, active, or <7500 steps, sedentary)...
October 22, 2016: Journal of Endocrinological Investigation
Sorena Afshar, Keith Seymour, Seamus B Kelly, Sean Woodcock, Vincent T van Hees, John C Mathers
BACKGROUND: Many studies using self-reported physical activity (PA) assessment tools have suggested there is an increase in PA after bariatric surgery. OBJECTIVES: Our aim was to assess PA and sedentary behavior before bariatric surgery and at 6 months after, using subjective and objective tools. SETTING: Bariatric surgery candidates were recruited from a single center. METHODS: Demographic data, medical history, current medications, and anthropometric measurements were recorded...
September 13, 2016: Surgery for Obesity and related Diseases: Official Journal of the American Society for Bariatric Surgery
Alexandre Pedro Tavares da Fonseca Magalhães, Maria de Fátima Rodrigues Pereira de Pina, Elisabete da Conceição Pereira Ramos
PURPOSE: Adolescence may be a period particularly relevant for acquisition of lifelong habits of physical activity (PA). We investigated the tracking of leisure-time PA from 13 to 17 years old and the influence of urban environment and other determinants. METHODS: As part of the EPITeen cohort (Portugal), we evaluated 969 adolescents living in the city of Porto. Participants were assembled in public and private schools at 13 years and reevaluated at 17 years. Leisure-time PA was evaluated by self-reported questionnaires...
October 19, 2016: Journal of Adolescent Health: Official Publication of the Society for Adolescent Medicine
Sandra Bouma, Mark Peterson, Erin Gatza, Sung Won Choi
Survivorship after pediatric HCT has increased over the past decade. Focus on long-term care and well-being remains critical due to risk of poor dietary habits and exaggerated sedentary behavior, which can lead to muscle weakness, increased risk for obesity, and cardiometabolic disorders. Nutrition and physical activity are key factors in survivorship; however, data are limited. Comprehensive nutritional assessments, including nutrition-focused physical examination, grip strength, and food/activity surveys, were completed in 36 pediatric HCT survivors (aged 2-25 years)...
October 21, 2016: Pediatric Transplantation
David W Schopfer, Daniel E Forman
Cardiac rehabilitation (CR) is a comprehensive lifestyle program that can have particular benefit for older patients with heart failure (HF). Prevalence of HF is increasingly common among older adults. Mounting effects of cardiovascular risk factors in older age as well as the added effects of geriatric syndromes such as multimorbidity, frailty, and sedentariness contribute to the high incidence of HF as well as to management difficulty. Cardiac rehabilitation can play a decisive role in improving function, quality of life, symptoms, morbidity, and mortality, and also address the idiosyncratic complexities of care that often arise in old age...
October 18, 2016: Journal of Cardiac Failure
B Q Farah, R M Ritti-Dias, G G Cucato, P S Montgomery, A W Gardner
OBJECTIVES: Time spent in sedentary behavior has been associated with cardio-metabolic risk factors in the general population and in patients with symptomatic peripheral artery disease (PAD). Given the association of sedentary behavior and poor health outcomes, it is important to identify factors associated with sedentary behavior in these patients. The aim of this study was to identify factors associated with the sedentary time in patients with symptomatic PAD. METHODS: The sample included 297 patients with symptomatic PAD...
October 18, 2016: European Journal of Vascular and Endovascular Surgery
Silvana B Sandbakk, Javaid Nauman, Nina Zisko, Øyvind Sandbakk, Nils Petter Aspvik, Dorthe Stensvold, Ulrik Wisløff
OBJECTIVE: To determine whether meeting physical activity (PA) recommendations and/or having high age-specific cardiorespiratory fitness (CRF) attenuate the adverse effect of prolonged sedentary time on cardiovascular risk factor (CV-RF) clustering in older adults. PATIENTS AND METHODS: We conducted a cross-sectional study of Norwegian women (495) and men (379) aged 70 to 77 years from August 22, 2012, through June 30, 2013. Sedentary time and PA were assessed by accelerometers and CRF by directly measured peak oxygen uptake (VO2peak)...
October 8, 2016: Mayo Clinic Proceedings
Gabriela Albuquerque, Milton Severo, Andreia Oliveira
OBJECTIVE: To assess early life characteristics associated with appetite-related eating behaviors in 7-year-old children. STUDY DESIGN: The participants are children from the population-based birth cohort Generation XXI. Data on sociodemographics, health, and lifestyles and anthropometrics were collected at birth, and 4- and 7-year-old evaluations. A Portuguese version of the Children's Eating Behavior Questionnaire was completed by mothers (n = 3562 children) with children aged 7 years old...
October 18, 2016: Journal of Pediatrics
S Nicole Fearnbach, Travis D Masterson, Haley A Schlechter, Amanda J Ross, Michael J Rykaczewski, Eric Loken, Danielle S Downs, David Thivel, Kathleen L Keller
BACKGROUND: Exercise not only has a direct effect on energy balance through energy expenditure (EE), but also has an indirect effect through its impact on energy intake (EI). This study examined the effects of acute exercise on daily ad libitum EI in children at risk for becoming overweight due to family history. METHODS: Twenty healthy-weight children (ages 9-12 years, 12 male/8 female) with at least one overweight biological parent (body mass index ≥ 25 kg/m(2)) participated...
October 21, 2016: Nutrition Journal
Suhitha Veeravelli, Bijan Najafi, Ivan Marin, Fernando Blumenkron, Shannon Smith, Stephen A Klotz
Approximately 1.2 million people in the United States live with HIV infection. Medical advancements have increased the life expectancy and this cohort is aging. HIV-positive individuals have a high incidence of frailty (~20%) characterized by depression and sedentary behavior. Exercise would be healthy, but due to the frail status of many HIV-positive individuals, conventional exercise is too taxing. The aim of this study was to evaluate the effectiveness and acceptability of a novel game-based training program (exergame) in ameliorating some aspects of frailty in HIV-infected individuals...
October 6, 2016: Journal of Visualized Experiments: JoVE
Daniel T Goon, Constance A Nsibambi, Milton Chebet
BACKGROUND: Scant information exist on screen time behavior of South Africa children and whether they do not meet the recommendation of American Association of Pediatrics (AAP) concerning screen time activity for children is only speculative. Therefore, the purpose of this study was to examine the time spent in sedentary activities, especially screen time of South African children with regard to gender. METHODS: This cross-sectional study involved a random sample of 1136 school children (548 boys; 588 girls) aged 9-13 years attending public schools in Central Pretoria, South Africa...
December 2016: Minerva Pediatrica
Brun Jean-Frédéric, Varlet-Marie Emmanuelle, Fédou Christine, Raynaud de Mauverger Eric
Equations of blood viscosity provide a prediction of the 'optimal' hematocrit' (hct) as the hct resulting in the highest value of the bell-shaped curve of hematocrit/viscosity ratio h/η. We investigated if overweight and obesity have an influence on these parameters. We compared 32 normal weight subjects, 40 overweight (BMI 25-30) and 38 obese subjects. There was no difference in the theoretical curve of h/η. The actual h/η is the same in the 3 groups but is always higher than the theoretical h/η in all groups...
October 15, 2016: Clinical Hemorheology and Microcirculation
Brun Jean-Frédéric, Varlet-Marie Emmanuelle, Raynaud de Mauverger Eric
The hemorheological theory of optimal hematocrit suggests that the best value of hematocrit (hct) should be that which results in the highest value of the hematocrit/viscosity (h/η) ratio. Trained athletes compared to sedentary subjects have a lower hct, but a higher h/η, and endurance training reduces the discrepancy between the actual hct and the ⪡ideal⪢ hct that can be predicted with a theoretical curve of h/ηvs hct constructed with Quemada's model. In this study we investigated what becomes this homeostasis of h/η and hct during acute exercise in 19 athletes performing a 25 min exercise test...
October 17, 2016: Clinical Hemorheology and Microcirculation
Michał Bronikowski, Małgorzata Bronikowska, Beata Pluta, Janusz Maciaszek, Maciej Tomczak, Agata Glapa
The promotion of physical activity (PA) in children and their parents requires effective planning and sometimes even interventions. This study shows the effect of PA during a 15-week intervention program "Junior for Seniors" by applying a socioecological model to the interpretation of the data. This comprehensive approach emphasizes the fact that health promotion should focus not only on intrapersonal factors but also on the multilevel factors that might be determinants and modulators of increased PA. In 2015, 24 children ("juniors," 14 girls and 10 boys, aged M = 7...
2016: BioMed Research International
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