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https://www.readbyqxmd.com/read/27913593/higher-heart-rate-variability-is-associated-with-vmpfc-activity-and-increased-resistance-to-temptation-in-dietary-self-control-challenges
#1
Silvia U Maier, Todd A Hare
: Higher levels of self-control in decision making have been linked to better psychosocial and physical health. A similar link to health outcomes has been reported for heart rate variability (HRV), a marker of physiological flexibility. Here, we sought to link these two, largely separate, research domains by testing the hypothesis that greater HRV would be associated with better dietary self-control in humans. Specifically, we examined whether total HRV at sedentary rest (measured as the standard deviation of normal-to-normal intervals, SDNN) can serve as a biomarker for the neurophysiological adaptability that putatively underlies self-controlled behavior...
December 2, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27909557/eating-habits-physical-activity-nutrition-knowledge-and-self-efficacy-by-obesity-status-in-upper-grade-elementary-school-students
#2
Seong Ah Ha, Seo Yeon Lee, Kyung A Kim, Jung Sook Seo, Cheong Min Sohn, Hae Ryun Park, Kyung Won Kim
BACKGROUND/OBJECTIVES: Childhood obesity has increased in recent decades in Korea. This study was designed to examine differences in the eating habits, physical activity (PA), nutrition knowledge, and self-efficacy of children by obesity status. SUBJECTS/METHODS: Subjects were 5th-grade children from 70 elementary schools in 17 cities nationwide. Two-stage stratified cluster sampling was employed. Survey questionnaire included items related to general characteristics, eating habits, PA, nutrition knowledge and self-efficacy...
December 2016: Nutrition Research and Practice
https://www.readbyqxmd.com/read/27905898/physical-activity-and-sedentary-behavior-can-modulate-the-effect-of-the-pnpla3-variant-on-childhood-nafld-a-case-control-study-in-a-chinese-population
#3
Shuo Wang, Jieyun Song, Xiaorui Shang, Nitesh Chawla, Yide Yang, Xiangrui Meng, Haijun Wang, Jun Ma
BACKGROUND: The patatin like phospholipase containing domain 3 gene (PNPLA3) rs738409 C > G polymorphism, one of the most important gene polymorphisms involved in hepatic steatosis, has been reported to interact with different nutrients and dietary patterns on Non-Alcoholic Fatty Liver Disease (NAFLD), but no studies have focused on its interaction with physical activity or sedentary behavior. Therefore, this study aims at determining whether physical activity or sedentary behavior could modulate the effect of the PNPLA3 variant on childhood NAFLD...
December 1, 2016: BMC Medical Genetics
https://www.readbyqxmd.com/read/27896298/applying-latent-class-assignments-for-accelerometry-data-to-external-populations-data-from-the-national-health-and-nutrition-examination-survey-2003-2006
#4
Kelly R Evenson, Fang Wen, Annie Green Howard, Amy H Herring
Latent class analysis can identify unmeasured mutually exclusive categories (class membership) among participants for either observed categorical or continuous variables. More recently, latent class analysis has been applied to accelerometry to better understand the day-to-day patterns of physical activity and sedentary behavior. Typically, the class assignments are only relevant to the study for which they were derived and not made available for others to use. Using one-week accelerometry (ActiGraph #AM7164) data collected from the National Health and Nutrition Examination Survey during 2003-2006, latent classes of physical activity and sedentary behavior were derived separately for youths 6-17 years and adults >=18 years...
December 2016: Data in Brief
https://www.readbyqxmd.com/read/27895545/studying-the-complex-relationships-between-physical-activity-and-infertility
#5
Kelly R Evenson, Kathryn R Hesketh
This article provides commentary on the accompanying review, "Modifiable Risk Factors and Infertility: What are the Connections?" by Rossi and colleagues. This commentary focuses specifically on the association between physical activity or exercise and infertility, given the equivocal evidence summarized in the Rossi et al. review paper. Several methodologic issues related to physical activity and infertility are discussed, including defining the components of physical activity that research studies assess in research studies (e...
July 2016: American Journal of Lifestyle Medicine
https://www.readbyqxmd.com/read/27889314/dietary-patterns-during-adulthood-among-lesbian-bisexual-and-heterosexual-women-in-the-nurses-health-study-ii
#6
Nicole A VanKim, S Bryn Austin, Hee-Jin Jun, Frank B Hu, Heather L Corliss
BACKGROUND: Lesbian and bisexual women are at greater risk of being obese than heterosexual women; however, there is little research on dietary intake among lesbian and bisexual women. OBJECTIVE: This study estimated differences in dietary quality and intake during adulthood comparing heterosexual women to lesbian and bisexual women. DESIGN: Biennial mailed questionnaires were used to collect data from a cohort between 1991 and 2011. Heterosexual-identified women were the reference group...
November 23, 2016: Journal of the Academy of Nutrition and Dietetics
https://www.readbyqxmd.com/read/27887769/activity-and-sedentary-time-10-years-after-a-successful-lifestyle-intervention-the-diabetes-prevention-program
#7
Bonny Rockette-Wagner, Kristi L Storti, Dana Dabelea, Sharon Edelstein, Hermes Florez, Paul W Franks, Maria G Montez, Jeremy Pomeroy, Andrea M Kriska
INTRODUCTION: This study aims to determine if evidence exists for a lasting effect of the Diabetes Prevention Program (DPP) lifestyle intervention on activity levels by comparing objectively collected activity data between the DPP Outcome Study (DPPOS) cohort and adults from the National Health and Nutrition Examination Survey (NHANES; 2003-2006). METHODS: Average minutes/day of light and moderate to vigorous physical activity (MVPA) and sedentary behavior from ActiGraph accelerometers (collected 2010-2012) were examined (2013-2014) for comparable DPPOS and NHANES subgroups by age, sex, and diabetes status...
November 16, 2016: American Journal of Preventive Medicine
https://www.readbyqxmd.com/read/27884563/combined-associations-of-sedentary-behavior-and-cardiorespiratory-fitness-on-cognitive-function-among-older-adults
#8
Meghan K Edwards, Paul D Loprinzi
BACKGROUND: Sedentary behavior, cardiorespiratory fitness, cognition and age are interrelated and associated with cardiovascular function. No study, however, has specifically evaluated the independent and combined associations of cardiorespiratory fitness and sedentary behavior on cognition, which was this study's purpose. METHODS: Data from the 1999-2002 NHANES were used (N=2451; 60-85yrs). Sedentary behavior was assessed via self-report; cardiorespiratory fitness was assessed from a medical-related algorithm; and cognition function was assessed from the Digit Symbol Substitution Test (DSST)...
November 18, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27881859/friends-and-social-contexts-as-unshared-environments-a-discordant-sibling-analysis-of-obesity-and-health-related-behaviors-in-young-adolescents
#9
S- Salvy, D M Feda, L H Epstein, J N Roemmich
OBJECTIVE: This study examines the contribution of best friends' weight and the peer social context (time spent alone versus with friends) as sources of unshared environment associated with variability in weight and health behaviors among weight-discordant siblings. METHODS: Pairs of same-sex biologic siblings (N=40 pairs; ages 13-17) were originally recruited as part of a study evaluating putative factors contributing to differences in adiposity among weight-discordant siblings...
November 24, 2016: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/27881342/-factors-affecting-maternal-physical-activities-an-analysis-based-on-the-structural-equation-modeling
#10
Yi Liu, Bi-Ru Luo
OBJECTIVE: To analyze the factors affecting maternal physical activities at different stages among pregnant women. METHODS: Self-designed questionnaires were used to investigate the physical activities of women in different stages, including 650 in the first, 650 in the second, and 750 in the third trimester of pregnancy. The factors affecting maternal physical activities were analyzed using the structural equation model that comprised 4 latent variables (attitude, norm, behavioral attention and behavior) with observed variables that matched the latent variables...
November 20, 2016: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/27881102/associations-of-sedentary-behavior-and-physical-activity-with-physical-measurements-and-dyslipidemia-in-school-age-children-a-cross-sectional-study
#11
Wei Zheng, Yun Chen, Ai Zhao, Yong Xue, Yingdong Zheng, Zhishen Mu, Peiyu Wang, Yumei Zhang
BACKGROUND: Physical activity and sedentary behavior are common factors influencing cardiovascular health. However, how school and leisure-time activity/sedentary behavior are associated with physical fitness and blood lipid levels in primary school children in consideration of gender disparity remains unclear. METHODS: Data was obtained from a health and nutrition survey on primary school children from nine areas in China. The association between physical activities/sedentary behaviors (school and leisure-time physical activity levels, screen time, and other sedentary behaviors) and anthropometric measurements/prevalence of dyslipidemia were examined by multilevel analysis (the individual level, class level, grade level, and investigation area level) adjusted for age, energy intake and family income...
November 24, 2016: BMC Public Health
https://www.readbyqxmd.com/read/27872802/park-use-is-associated-with-less-sedentary-time-among-low-income-parents-and-their-preschool-child-the-net-works-study
#12
Simone A French, Nancy E Sherwood, Nathan R Mitchell, Yingling Fan
INTRODUCTION: Parks are an important component of the neighborhood environment, and their presence is believed to support higher levels of physical activity among residents. The present study examined park use frequency among a sample of 534 low-income parents of preschool aged children. Associations with child and parent physical activity, neighborhood characteristics and physical characteristics of the block immediately surrounding the home were examined. METHODS: Data are from baseline measurements completed in 2012-2014 as part of larger study (NET-Works: Now Everybody Together for Amazing and Healthy Kids) targeting low-income preschool children and their parents (N = 534 parent-child dyads)...
March 2017: Preventive Medicine Reports
https://www.readbyqxmd.com/read/27866595/modifiable-healthy-lifestyle-behaviors-10-year-health-outcomes-from-a-health-promotion-program
#13
Daniel W Byrne, Lori A Rolando, Muktar H Aliyu, Paula W McGown, Lisa R Connor, Bradley M Awalt, Marilyn C Holmes, Li Wang, Mary I Yarbrough
INTRODUCTION: Previous studies have examined the impact of healthy lifestyle choices on health-related outcomes; however, given their fragmented, often cross-sectional nature, assessing the relative impact of daily modifiable behaviors on overall long-term outcomes, particularly for a diverse working adult population, remains challenging. METHODS: Relationships between ten self-reported healthy lifestyle behaviors and health outcomes during the subsequent 9 years in a cohort of 10,248 participants enrolled during 2003 in a voluntary workplace wellness program were assessed...
December 2016: American Journal of Preventive Medicine
https://www.readbyqxmd.com/read/27866384/schoolyard-characteristics-physical-activity-and-sedentary-behavior-combining-gps-and-accelerometry
#14
Dave H H Van Kann, Sanne I de Vries, Jasper Schipperijn, Nanne K de Vries, Maria W J Jansen, Stef P J Kremers
BACKGROUND: Physical activity (PA) is decreasing among children, while sedentary behavior (SB) is increasing. Schoolyards seem suitable settings to influence children's PA behavior. This study investigated the associations between schoolyard characteristics and moderate-to-vigorous physical activity (MVPA) and SB of children aged 8-11 years at schoolyards. METHODS: Twenty primary schools in the Netherlands were involved. A total of 257 children wore an accelerometer and global positioning system (GPS) device for 5 consecutive days to objectively assess their PA levels and presence at the schoolyard, respectively...
December 2016: Journal of School Health
https://www.readbyqxmd.com/read/27864370/acceptability-of-strategies-to-reduce-student-sitting-a-mixed-methods-study-with-college-teachers
#15
Hanna Laine, Vera Araújo-Soares, Ari Haukkala, Nelli Hankonen
Background As school days among adolescents include long periods of prolonged sitting, teachers are key agents to deliver interventions to reduce youth sedentary behavior. To develop an intervention, acceptability and feasibility of alternative strategies should be tested. We aimed to examine teachers' current use and willingness to use various strategies to decrease student sitting and potential barriers and facilitators of use. Method Mixed-methods design with college teachers using an online cross-sectional survey (n = 192) and focus group interviews (n = 13)...
November 18, 2016: Health Promotion Practice
https://www.readbyqxmd.com/read/27857250/advantages-and-limitations-of-wearable-activity-trackers-considerations-for-patients-and-clinicians
#16
Rachel K Walker, Amanda M Hickey, Patty S Freedson
BACKGROUND: Exercise, light physical activity, and decreased sedentary time all have been associated with health benefits following cancer diagnoses. Commercially available wearable activity trackers may help patients monitor and self-manage their behaviors to achieve these benefits. OBJECTIVES: This article highlights some advantages and limitations clinicians should be aware of when discussing the use of activity trackers with cancer survivors. METHODS: Limited research has assessed the accuracy of commercially available activity trackers compared to research-grade devices...
December 1, 2016: Clinical Journal of Oncology Nursing
https://www.readbyqxmd.com/read/27855265/a-randomized-controlled-trial-of-school-based-active-videogame-intervention-on-chinese-children-s-aerobic-fitness-physical-activity-level-and-psychological-correlates
#17
Patrick Wing Chung Lau, Jing Jing Wang, Ralph Maddison
OBJECTIVE: Active videogames (AVGs) that require body movements to play offer a novel opportunity to turn a traditionally sedentary behavior into a physically active one. We sought to determine the effect of a school-based AVG intervention on Chinese children's aerobic fitness, physical activity (PA) level, and PA-related psychological correlates. MATERIALS AND METHODS: Eighty 8-11-year-old Chinese children (55 males) were recruited from one Hong Kong primary school and were allocated at random to either an AVG intervention or control group...
November 17, 2016: Games for Health
https://www.readbyqxmd.com/read/27854536/pok%C3%A3-mon-go-may-increase-physical-activity-and-decrease-sedentary-behaviors
#18
Claudio R Nigg, Desiree Joi Mateo, Jiyoung An
Regular physical activity contributes to the prevention of obesity and chronic diseases(1); however, fewer than half of US adults are regularly active. Video games, computers, television, mobile devices, and sedentary occupations have all contributed to the growth in sedentary behavior and obesity. More recently, technology-based interventions have focused on mobile devices to promote physical activity.(2) About 90% of American adults have a mobile phone,(3) with 64% owning a smartphone. Advantages of technology-based interventions include continual self-monitoring and access, decreasing barriers of transportation and time, and portability (e...
November 17, 2016: American Journal of Public Health
https://www.readbyqxmd.com/read/27854422/impact-of-booster-breaks-and-computer-prompts-on-physical-activity-and-sedentary-behavior-among-desk-based-workers-a-cluster-randomized-controlled-trial
#19
Wendell C Taylor, Raheem J Paxton, Ross Shegog, Sharon P Coan, Allison Dubin, Timothy F Page, David M Rempel
INTRODUCTION: The 15-minute work break provides an opportunity to promote health, yet few studies have examined this part of the workday. We studied physical activity and sedentary behavior among office workers and compared the results of the Booster Break program with those of a second intervention and a control group to determine whether the Booster Break program improved physical and behavioral health outcomes. METHODS: We conducted a 3-arm, cluster-randomized controlled trial at 4 worksites in Texas from 2010 through 2013 to compare a group-based, structured Booster Break program to an individual-based computer-prompt intervention and a usual-break control group; we analyzed physiologic, behavioral, and employee measures such as work social support, quality of life, and perceived stress...
November 17, 2016: Preventing Chronic Disease
https://www.readbyqxmd.com/read/27854073/altered-extracellular-atp-adp-and-amp-hydrolysis-in-blood-serum-of-sedentary-individuals-after-an-acute-aerobic-moderate-exercise-session
#20
Cesar Eduardo Jacintho Moritz, Bruno Costa Teixeira, Liliana Rockenbach, Alvaro Reischak-Oliveira, Emerson André Casali, Ana Maria Oliveira Battastini
Nucleotidases participate in the regulation of physiological and pathological events, such as inflammation and coagulation. Exercise promotes distinct adaptations, and can influence purinergic signaling. In the present study, we investigated soluble nucleotidase activities in the blood serum of sedentary young male adults at pre- and post-acute moderate aerobic exercise. In addition, we evaluated how this kind of exercise could influence adenine nucleotide concentrations in the blood serum. Sedentary individuals were submitted to moderate aerobic exercise on a treadmill; blood samples were collected pre- and post-exercise, and serum was separated for analysis...
November 16, 2016: Molecular and Cellular Biochemistry
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