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sedentary physical activity objective

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https://www.readbyqxmd.com/read/29228941/four-years-follow-up-changes-of-physical-activity-and-sedentary-time-in-women-undergoing-roux-en-y-gastric-bypass-surgery-and-appurtenant-children
#1
Fanny Sellberg, Mikaela Willmer, Per Tynelius, Daniel Berglind
BACKGROUND: Objectively measured levels of physical activity (PA) in patients undergoing Roux-en-Y Gastric Bypass (RYGB) surgery remain essentially unchanged from before to one year after surgery. Effects from RYGB on objectively measured levels of PA among women undergoing RYGB and appurtenant children beyond one year post-surgery are unknown. The aim of the present study was to objectively assess longitudinal changes in PA and sedentary time (ST), among women undergoing RYGB and appurtenant children, from three months before to nine and 48 months after maternal surgery...
December 11, 2017: BMC Surgery
https://www.readbyqxmd.com/read/29219943/replacement-of-sedentary-time-with-physical-activity-impact-on-lipoproteins
#2
Catherine M Phillips, Christina B Dillon, Ivan J Perry
PURPOSE: Limited data on the relationship between physical activity and lipoprotein particle profiles exist. Our objective was to investigate associations between objectively measured physical activity and lipoprotein particle size and number, and specifically whether substituting daily sedentary behaviour with light activity or moderate to vigorous physical activity (MVPA), is associated with beneficial alterations to the lipoprotein profile among adults and those at increased cardiometabolic risk (obese and insulin resistant subjects)...
December 7, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29219096/meeting-new-canadian-24-hour-movement-guidelines-for-the-early-years-and-associations-with-adiposity-among-toddlers-living-in-edmonton-canada
#3
Eun-Young Lee, Kylie D Hesketh, Stephen Hunter, Nicholas Kuzik, Ryan E Rhodes, Christina M Rinaldi, John C Spence, Valerie Carson
BACKGROUND: Canada has recently released guidelines that include toddler-specific recommendations for physical activity, screen-based sedentary behaviour, and sleep. This study examined the proportions of toddlers meeting the new Canadian 24-Hour Movement Guidelines for the Early Years (0-4 years) and associations with body mass index (BMI) z-scores in a sample from Edmonton, Canada. METHODS: Participants included 151 toddlers (aged 19.0 ± 1.9 months) for whom there was complete objectively measured physical activity data from the Parents' Role in Establishing healthy Physical activity and Sedentary behaviour habits (PREPS) project...
November 20, 2017: BMC Public Health
https://www.readbyqxmd.com/read/29219078/systematic-review-of-the-relationships-between-sleep-duration-and-health-indicators-in-the-early-years-0-4%C3%A2-years
#4
Jean-Philippe Chaput, Casey E Gray, Veronica J Poitras, Valerie Carson, Reut Gruber, Catherine S Birken, Joanna E MacLean, Salomé Aubert, Margaret Sampson, Mark S Tremblay
BACKGROUND: The objective of this systematic review was to examine for the first time the associations between sleep duration and a broad range of health indicators in children aged 0 to 4 years. METHODS: Electronic databases were searched with no limits on date or study design. Included studies (published in English or French) were peer-reviewed and met the a priori determined population (apparently healthy children aged 1 month to 4.99 years), intervention/exposure/comparator (various sleep durations), and outcome criteria (adiposity, emotional regulation, cognitive development, motor development, growth, cardiometabolic health, sedentary behaviour, physical activity, quality of life/well-being, and risks/injuries)...
November 20, 2017: BMC Public Health
https://www.readbyqxmd.com/read/29219077/cross-sectional-associations-between-sleep-duration-sedentary-time-physical-activity-and-adiposity-indicators-among-canadian-preschool-aged-children-using-compositional-analyses
#5
Valerie Carson, Mark S Tremblay, Sebastien F M Chastin
BACKGROUND: Sleep duration, sedentary behaviour, and physical activity are three co-dependent behaviours that fall on the movement/non-movement intensity continuum. Compositional data analyses provide an appropriate method for analyzing the association between co-dependent movement behaviour data and health indicators. The objectives of this study were to examine: (1) the combined associations of the composition of time spent in sleep, sedentary behaviour, light-intensity physical activity (LPA), and moderate- to vigorous-intensity physical activity (MVPA) with adiposity indicators; and (2) the association of the time spent in sleep, sedentary behaviour, LPA, or MVPA with adiposity indicators relative to the time spent in the other behaviours in a representative sample of Canadian preschool-aged children...
November 20, 2017: BMC Public Health
https://www.readbyqxmd.com/read/29216318/reproducibility-of-objectively-measured-physical-activity-and-sedentary-time-over-two-seasons-in-children-comparing-a-day-by-day-and-a-week-by-week-approach
#6
Eivind Aadland, Lars Bo Andersen, Turid Skrede, Ulf Ekelund, Sigmund Alfred Anderssen, Geir Kåre Resaland
INTRODUCTION: Knowledge of reproducibility of accelerometer-determined physical activity (PA) and sedentary time (SED) estimates are a prerequisite to conduct high-quality epidemiological studies. Yet, estimates of reproducibility might differ depending on the approach used to analyze the data. The aim of the present study was to determine the reproducibility of objectively measured PA and SED in children by directly comparing a day-by-day and a week-by-week approach to data collected over two weeks during two different seasons 3-4 months apart...
2017: PloS One
https://www.readbyqxmd.com/read/29212458/associations-of-sedentary-behavior-and-physical-activity-with-older-adults-physical-function-an-isotemporal-substitution-approach
#7
Akitomo Yasunaga, Ai Shibata, Kaori Ishii, Mohammad Javad Koohsari, Shigeru Inoue, Takemi Sugiyama, Neville Owen, Koichiro Oka
BACKGROUNDS: The purpose of this study was to examine, in a sample of Japanese older adults, the associations of objectively-assessed sedentary behavior (SB) and physical activity (PA) with performance-based physical function. The isotemporal substitution (IS) approach was used to model simultaneously the effects of the specific activity being performed and the activity being displaced, in an equal time-exchange manner. METHODS: Among 287 older adults (65-84 years), we used accelerometers to identify the daily average time spent on SB (≤1...
December 6, 2017: BMC Geriatrics
https://www.readbyqxmd.com/read/29211840/occupational-health-risks-and-intervention-strategies-for-us-taxi-drivers
#8
Kate E Murray, Abdimalik Buul, Rasheed Aden, Alyson M Cavanaugh, Luwam Kidane, Mikaiil Hussein, Amelia Eastman, Harvey Checkoway
Research has shown that taxi drivers are at risk for numerous health concerns, such as low back and leg pain, linked to their highly sedentary occupation, long work hours and stressors related to the job (e.g. low income, safety threats). The goal of this study was to explore occupational health risks and opportunities for health interventions with taxi drivers using community-based participatory research (CBPR) methods. A mixed methods approach included first a convenience sample of 19 East African taxi drivers participating in focus group discussions...
December 2, 2017: Health Promotion International
https://www.readbyqxmd.com/read/29189426/the-influence-of-exercise-on-cardiovascular-health-in-sedentary-adults-with-human-immunodeficiency-virus
#9
Allison R Webel, Joseph Perazzo, Christopher T Longenecker, Trevor Jenkins, Abdus Sattar, Margaret Rodriguez, Nate Schreiner, Richard A Josephson
BACKGROUND: Lifestyle physical activity (ie, moderate physical activity during routine daily activities most days of the week) may benefit human immunodeficiency virus (HIV)-positive adults who are at high risk for cardiovascular disease. OBJECTIVE: The aims of this study were to describe lifestyle physical activity patterns in HIV-positive adults and to examine the influence of lifestyle physical activity on markers of cardiovascular health. Our secondary objective was to compare these relationships between HIV-positive adults and well-matched HIV-uninfected adults...
November 16, 2017: Journal of Cardiovascular Nursing
https://www.readbyqxmd.com/read/29184965/is-self-reported-time-spent-sedentary-and-in-physical-activity-differentially-biased-by-age-gender-body-mass-index-and-low-back-pain
#10
Nidhi Gupta, Marina Heiden, Svend Erik Mathiassen, Andreas Holtermann
Objectives This study aimed to determine the extent to which age, gender, body mass index (BMI) and low-back pain (LBP) influence bias in self-reported sedentary behavior and moderate-to-vigorous physical activity (MVPA) among blue-collar workers. Methods For 2-4 consecutive working days, 147 workers wore an Actigraph accelerometer on the thigh. Proportional time spent sedentary and in MVPA was determined using the Acti4 software. The same variables were also self-reported in a questionnaire. The difference between self-reported and accelerometer-based sedentary time and MVPA was calculated and linearly regressed against age, gender, BMI, and self-reported LBP intensity as main effects, as well as interaction terms combining each of these factors with objectively measured exposure...
November 29, 2017: Scandinavian Journal of Work, Environment & Health
https://www.readbyqxmd.com/read/29183954/associations-between-objectively-measured-physical-activity-and-later-mental-health-outcomes-in-children-findings-from-the-uk-millennium-cohort-study
#11
Jane V Ahn, Francesco Sera, Steven Cummins, Eirini Flouri
BACKGROUND: The beneficial effect of physical activity (PA) on mental health in adults is well established, but less is known about this relationship in children. We examine associations between objectively measured sedentary time, PA and mental health in 11-year-olds from the UK Millennium Cohort Study (MCS). METHODS: Longitudinal data from MCS sweeps 4 (age 7) and 5 (age 11) were used (n=6153). Accelerometer data were collected at MCS4, and mental health was measured at MCS4 and MCS5 using subscales (peer, emotional, conduct, hyperactivity) of the Strengths and Difficulties Questionnaire (SDQ)...
November 28, 2017: Journal of Epidemiology and Community Health
https://www.readbyqxmd.com/read/29178252/the-cross-sectional-associations-between-objectively-measured-sedentary-time-and-cardiometabolic-health-markers-in-adults-a-systematic-review-with-meta-analysis-component
#12
REVIEW
C Powell, M P Herring, K P Dowd, A E Donnelly, B P Carson
Sedentary time is viewed as an independent risk factor for adverse cardiometabolic health (CMH). No systematic review and meta-analysis on the cross-sectional associations between objectively measured sedentary time and CMH markers has been conducted. PubMed, Scopus and Web of Science Core Collection were searched for papers that examined the cross-sectional association between objectively measured sedentary time and CMH markers in adults. Forty-six papers met the inclusion criteria. The included papers had a combined sample size of 70,576 and an age range of 18-87 years...
November 27, 2017: Obesity Reviews: An Official Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/29177056/physical-activity-and-central-adiposity-in-a-cohort-of-african-american-adults
#13
Sean McGrath, Danielle Brazel, Lara Dugas, Guichan Cao, Ramon Durazo-Arvizu, Amy Luke
Background: Visceral adipose tissue (VAT) is known as an independent predictor of cardiometabolic risk and all-cause mortality, while increased physical activity has been shown to improve cardiometabolic risk. The purpose of the present study was to determine whether or not there is an association between objectively-measured physical activity and VAT in a community-based cohort of African-American adults, a population at higher-than-average risk for cardiometabolic diseases. Methods: Free-living physical activity was quantified using accelerometry while VAT and abdominal subcutaneous fat were estimated using dual x-ray absorptiometry in a cohort of African Americans, ages 30-50 years, enrolled in the Modeling the Epidemiologic Transition Study...
2017: BMC Obesity
https://www.readbyqxmd.com/read/29172971/physical-activity-and-sedentary-behaviors-levels-of-kuwaiti-adolescents-the-study-of-health-and-activity-among-adolescents-in-kuwait
#14
Rawan Hashem, Juan P Rey-López, Mark Hamer, Anne McMunn, Peter H Whincup, Christopher G Owen, Alex Rowlands, Emmanuel Stamatakis
BACKGROUND: There is only scarce number of studies available describing the lifestyle of adolescents living in Arab countries. Hence, we described physical activity (PA) and sedentary behaviors patterns among Kuwaiti adolescents and the associations with parental education. METHODS: Cross-sectional data from 435 adolescents (201 boys and 234 girls) were collected from the Study of Health and Activity among Adolescents in Kuwait conducted between 2012 and 2013. Outcome variables included PA (ActiGraph GT1M accelerometers) and sedentary behaviors...
November 25, 2017: Journal of Physical Activity & Health
https://www.readbyqxmd.com/read/29169368/inactive-lifestyles-and-sedentary-behavior-in-persons-with-chronic-aneurysmal-subarachnoid-hemorrhage-evidence-from-accelerometer-based-activity-monitoring
#15
Wouter J Harmsen, Gerard M Ribbers, Majanka H Heijenbrok-Kal, Johannes B J Bussmann, Emiel M Sneekes, Ladbon Khajeh, Fop van Kooten, Sebastian J C M M Neggers, Rita J van den Berg-Emons
BACKGROUND: Aneurysmal subarachnoid hemorrhage (a-SAH) is a potential life-threatening stroke. Because survivors may be at increased risk for inactive and sedentary lifestyles, this study evaluates physical activity (PA) and sedentary behavior (SB) in the chronic phase after a-SAH. METHODS: PA and SB were objectively measured at six months post a-SAH with an accelerometer-based activity monitor, with the aim to cover three consecutive weekdays. Total time spent in PA (comprising walking, cycling, running and non-cyclic movement) and SB (comprising sitting and lying) was determined...
November 23, 2017: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/29168957/the-effects-of-introducing-tabata-interval-training-and-stability-exercises-to-school-children-as-a-school-based-intervention-program
#16
Annika Ekström, Anna Hafsteinsson Östenberg, Glenn Björklund, Marie Alricsson
Background Physical activities during leisure time as well as school hours have changed over the past few years, with adolescents being less physically active and adopting a sedentary lifestyle. Objective The overall objective of this mixed-methods study was to evaluate the feasibility of introducing a 4-min Tabata interval training into a lower secondary school context. A further aim was to evaluate the possible effects on: coordination, balance, and strength. Methods The study was conducted as an intervention study with a mixed-method approach...
November 23, 2017: International Journal of Adolescent Medicine and Health
https://www.readbyqxmd.com/read/29165128/associations-between-accelerometer-measured-physical-activity-and-body-fatness-in-school-aged-children
#17
Aleš Gába, Josef Mitáš, Lukáš Jakubec
BACKGROUND: The main aim of the study was to examine the cross-sectional associations between objectively measured physical activity (PA) and body fatness in 7-12-year-old children. METHODS: We performed an analysis of 365 children (209 girls). Participant recruitment was performed in eight randomly selected elementary schools in cities and towns with various numbers of inhabitants. The body composition analysis was performed according to a multi-frequency bioelectrical impedance analysis; PA was monitored using an accelerometer...
April 28, 2017: Environmental Health and Preventive Medicine
https://www.readbyqxmd.com/read/29161656/comparing-objective-measures-of-the-built-environment-in-their-associations-with-youth-physical-activity-and-sedentary-behavior-across-heterogeneous-geographies
#18
Melissa N Poulsen, Emily A Knapp, Annemarie G Hirsch, Lisa Bailey-Davis, Jonathan Pollak, Brian S Schwartz
We compared two strategies for measuring built environment features in their associations with youth physical activity and sedentary behavior across heterogeneous geographies of Pennsylvania. Physical activity environments of communities representing a rural-to-urban gradient were characterized through direct observation and spatially referenced archival data subjected to confirmatory factor analysis. Stratified regression analyses assessed associations between environmental measures and behavioral outcomes by community type...
November 17, 2017: Health & Place
https://www.readbyqxmd.com/read/29158249/objectively-measured-physical-activity-and-sedentary-time-are-associated-with-cardiometabolic-risk-factors-in-adults-with-prediabetes-the-preview-study
#19
Nils Swindell, Kelly Mackintosh, Melitta McNarry, Jeffrey W Stephens, Diewertje Sluik, Mikael Fogelholm, Mathijs Drummen, Ian MacDonald, J Alfredo Martinez, Teodora Handjieva-Darlenska, Sally D Poppitt, Jennie Brand-Miller, Thomas M Larsen, Anne Raben, Gareth Stratton
OBJECTIVE: The aim of the present cross-sectional study was to examine the association among physical activity (PA), sedentary time (ST), and cardiometabolic risk in adults with prediabetes. RESEARCH DESIGN AND METHODS: Participants (n = 2,326; 25-70 years old, 67% female) from eight countries, with a BMI >25 kg ⋅ m(-2) and impaired fasting glucose (5.6-6.9 mmol ⋅ L(-1)) or impaired glucose tolerance (7.8-11.0 mmol ⋅ L(-1) at 2 h), participated. Seven-day accelerometry objectively assessed PA levels and ST...
November 20, 2017: Diabetes Care
https://www.readbyqxmd.com/read/29155839/performance-of-thigh-mounted-triaxial-accelerometer-algorithms-in-objective-quantification-of-sedentary-behaviour-and-physical-activity-in-older-adults
#20
Jorgen A Wullems, Sabine M P Verschueren, Hans Degens, Christopher I Morse, Gladys L Onambélé
Accurate monitoring of sedentary behaviour and physical activity is key to investigate their exact role in healthy ageing. To date, accelerometers using cut-off point models are most preferred for this, however, machine learning seems a highly promising future alternative. Hence, the current study compared between cut-off point and machine learning algorithms, for optimal quantification of sedentary behaviour and physical activity intensities in the elderly. Thus, in a heterogeneous sample of forty participants (aged ≥60 years, 50% female) energy expenditure during laboratory-based activities (ranging from sedentary behaviour through to moderate-to-vigorous physical activity) was estimated by indirect calorimetry, whilst wearing triaxial thigh-mounted accelerometers...
2017: PloS One
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