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https://www.readbyqxmd.com/read/28934319/an-examination-of-objectively-measured-sedentary-behavior-and-mental-well-being-in-adults-across-week-days-and-weekends
#1
Ann-Marie Gibson, David J Muggeridge, Adrienne R Hughes, Louise Kelly, Alison Kirk
BACKGROUND: Limited research has explored the links between sedentary behaviour, mental health and quality of life. This study examines objectively measured sedentary behaviour and perceived mental health and quality of life across week days and weekends. METHODS: 42 adults (19M, 23F; mean age 38yrs (range 18-67) & BMI 24.8kg/m2 (range 18.7-33.8) wore an activPAL monitor 24h/day for one week and completed the Hospital Anxiety and Depression Scale (HADS) and SF12 Health Survey...
2017: PloS One
https://www.readbyqxmd.com/read/28930863/measurement-of-active-and-sedentary-behavior-in-context-of-large-epidemiologic-studies
#2
Charles E Matthews, Sarah Kozey Keadle, Steven C Moore, Dale S Schoeller, Raymond J Carroll, Richard P Troiano, Joshua N Sampson
INTRODUCTION/PURPOSE: To assess the utility of measurement methods that may be more accurate and precise than traditional questionnaire-based estimates of habitual physical activity and sedentary behavior we compared the measurement properties of a past year questionnaire (AARP) and more comprehensive measures: an internet-based 24-hour recall (ACT24), and a variety of estimates from an accelerometer (ActiGraph). METHODS: Participants were 932 adults (50-74 y) in a 12-month study that included reference measures of energy expenditure from doubly labeled water (DLW) and active and sedentary time via activPAL...
September 19, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28911278/measurement-of-sedentary-behaviors-or-downtime-in-rett-syndrome
#3
Michelle Stahlhut, Kylie Hill, Anne-Marie Bisgaard, Anne Kjersgaard Jensen, Michaela Andersen, Helen Leonard, Jenny Downs
This study aimed to validate measures of sedentary time in individuals with Rett syndrome. Twenty-six individuals (median [IQR] age 16.0 (9.4-20.6) years) wore an activPAL accelerometer during video-taped activities and agreement was determined between sedentary time determined by the activPAL and observation. For 11 individuals (median [IQR] age 14.5 (11.5-25.6) years), linear regression was used to determine the relationship between sedentary time recorded on the modified Bouchard activity record diary card and measured using the activPAL...
October 2017: Journal of Child Neurology
https://www.readbyqxmd.com/read/28879067/sedentary-time-physical-activity-and-compliance-with-iom-recommendations-in-young-children-at-childcare
#4
Yvonne G Ellis, Dylan P Cliff, Xanne Janssen, Rachel A Jones, John J Reilly, Anthony D Okely
The aim of this study was to report patterns of sitting, standing and physical activity (PA) and compliance with Institute of Medicine (IOM) recommendations for sedentary behavior (SB) and PA among children aged 1 to 5 years at childcare, and examine sociodemographic variations. Sitting, standing and PA time was assessed using an activPAL inclinometer over a period of 1 to 5 days in 301 children (49% boys; mean age = 3.7 ± 1.0 years) across 11 childcare services in Illawarra, NSW, Australia. Breaks and bouts of sitting and standing were calculated and categorized...
September 2017: Preventive Medicine Reports
https://www.readbyqxmd.com/read/28859679/social-ecological-correlates-of-workplace-sedentary-behavior
#5
Sarah L Mullane, Meynard J L Toledo, Sarah A Rydell, Linda H Feltes, Brenna Vuong, Noe C Crespo, Mark A Pereira, Matthew P Buman
BACKGROUND: To identify social ecological correlates of objectively measured workplace sedentary behavior. METHODS: Participants from 24 worksites - across academic, industrial, and government sectors - wore an activPAL-micro accelerometer for 7-days (Jan-Nov 2016). Work time was segmented using daily logs. Sedentary behavior outcomes included time spent sitting, standing, in light intensity physical activity (LPA, stepping cadence <100 steps/min), and in prolonged sitting bouts (>30 min)...
August 31, 2017: International Journal of Behavioral Nutrition and Physical Activity
https://www.readbyqxmd.com/read/28846993/objectively-measured-daily-physical-activity-and-postural-changes-as-related-to-positive-and-negative-affect-using-ambulatory-monitoring-assessments
#6
Daniel Aggio, Karen Wallace, Nicola Boreham, Aparna Shankar, Andrew Steptoe, Mark Hamer
OBJECTIVE: The aim of the study was to determine whether objectively measured daily physical activity and posture of sitting, standing, and sit-to-stand transitions are associated with daily assessments of affect. METHODS: Participants (N = 51, 49% female) wore ActivPal accelerometers for 24 h/d for seven consecutive days. Time spent sitting, standing, and being physically active and sit-to-stand transitions were derived for each day. Participants also completed a mood inventory each evening...
September 2017: Psychosomatic Medicine
https://www.readbyqxmd.com/read/28816343/application-of-n-of-1-experiments-to-test-the-efficacy-of-inactivity-alert-features-in-fitness-trackers-to-increase-breaks-from-sitting-in-older-adults
#7
Dori E Rosenberg, Elyse Kadokura, Margaret E Morris, Anne Renz, Roger M Vilardaga
BACKGROUND: Frequent breaks from sitting could improve health. Many commercially available fitness trackers deliver vibration alerts that could be used to cue sitting breaks. As a potentially pragmatic approach to promote frequent breaks from sitting, we tested the efficacy of inactivity alerts among obese older adults, a highly sedentary population. METHODS: We conducted 10 sequential N-of-1 (single-case) experimental ABA trials. Participants (mean age = 68, mean BMI = 35) were monitored for a baseline phase ("A1") followed by an intervention phase ("B")...
August 16, 2017: Methods of Information in Medicine
https://www.readbyqxmd.com/read/28783651/automatic-recognition-of-activities-of-daily-living-utilizing-insole-based-and-wrist-worn-wearable-sensors
#8
Nagaraj Hegde, Matthew Bries, Tracy Swibas, Edward Melanson, Edward Sazonov
Automatic recognition of activities of daily living (ADL) is an important component in understanding of energy balance, quality of life and other areas of health and well-being. In our previous work, we had proposed an insole based activity monitor - SmartStep, designed to be socially acceptable and comfortable. The goals of the current study were: first, validation of SmartStep in recognition of a broad set of ADL; second, comparison of the SmartStep to a wrist sensor and testing these in combination; third, evaluation of SmartStep accuracy in measuring wear non-compliance and a novel activity class (driving); fourth, performing the validation in free living against a well-studied criterion measure (ActivPAL, PAL Technologies); and fifth, quantitative evaluation of the perceived comfort of SmartStep...
August 1, 2017: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/28682735/sedentary-behaviors-and-biomarkers-among-breast-cancer-survivors
#9
Sheri J Hartman, Catherine R Marinac, Lisa Cadmus-Bertram, Jacqueline Kerr, Loki Natarajan, Suneeta Godbole, Ruth E Patterson, Brittany Morey, Dorothy D Sears
BACKGROUND: Sedentary behavior is associated with increased risk of poor outcomes in breast cancer survivors, but underlying mechanisms are not well understood. This pilot study explored associations between different aspects of sedentary behaviors (sitting, prolonged sitting, sit-to-stand transitions, and standing) and breast cancer risk-related biomarkers in breast cancer survivors (n = 30). METHODS: Sedentary behavior variables were objectively measured with thigh-worn activPALs...
September 14, 2017: Journal of Physical Activity & Health
https://www.readbyqxmd.com/read/28661546/skeletal-muscle-metabolism-after-stroke-a-comparative-study-using-treadmill-and-overground-walking-test
#10
Ana Paula Loureiro, Birgitta Langhammer, Terje Gjøvaag, Hege Ihle-Hansen, Luiz César Guarita-Souza
OBJECTIVE: The primary aim of this study was to investigate muscle metabolism in stroke survivors through measurements of the respiratory exchange ratio and rates of fat and carbohydrate oxidation in relation to total energy expenditure at preferred walking speed during treadmill and overground walking. The secondary objective was to investigate whether the energy source used during walking influences the daily physical activity pattern and fatigue of post-stroke individuals. METHODS: The sample comprised 28 stroke participants and 10 non-disabled, healthy controls...
June 29, 2017: Journal of Rehabilitation Medicine
https://www.readbyqxmd.com/read/28659258/acceptance-of-mobile-health-in-communities-underrepresented-in-biomedical-research-barriers-and-ethical-considerations-for-scientists
#11
Camille Nebeker, Kate Murray, Christina Holub, Jessica Haughton, Elva M Arredondo
BACKGROUND: The rapid expansion of direct-to-consumer wearable fitness products (eg, Flex 2, Fitbit) and research-grade sensors (eg, SenseCam, Microsoft Research; activPAL, PAL Technologies) coincides with new opportunities for biomedical and behavioral researchers. Underserved communities report among the highest rates of chronic disease and could benefit from mobile technologies designed to facilitate awareness of health behaviors. However, new and nuanced ethical issues are introduced with new technologies, which are challenging both institutional review boards (IRBs) and researchers alike...
June 28, 2017: JMIR MHealth and UHealth
https://www.readbyqxmd.com/read/28642713/benefits-of-substituting-sitting-with-standing-and-walking-in-free-living-conditions-for-cardiometabolic-risk-markers-cognition-and-mood-in-overweight-adults
#12
Bernard M F M Duvivier, Nicolaas C Schaper, Annemarie Koster, Linh van Kan, Harry P F Peters, Jos J Adam, Timo Giesbrecht, Esther Kornips, Martine Hulsbosch, Paul Willems, Matthijs K C Hesselink, Patrick Schrauwen, Hans H C M Savelberg
Background: We investigated whether substituting sitting with standing and self-perceived light walking in free-living conditions would improve cardiometabolic risk factors, mood, and cognition in overweight/obese adults. Methods: In a randomized, cross-over study, 24 (m/f: 13/11) sedentary overweight/obese participants (64 ± 7 years, BMI 29 ± 2 kg/m(2)) followed two activity regimens of each 4 days in free-living conditions: "Sit": sitting 13.5 h/day, standing 1.4 h/day, self-perceived light-intensity walking 0...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28619784/relationships-between-socioeconomic-position-and-objectively-measured-sedentary-behaviour-in-older-adults-in-three-prospective-cohorts
#13
Richard John Shaw, Iva Čukić, Ian J Deary, Catharine R Gale, Sebastien Fm Chastin, Philippa M Dall, Dawn A Skelton, Geoff Der
OBJECTIVES: To investigate whether sedentary behaviour in older adults is associated with a systematic and comprehensive range of socioeconomic position (SEP) measures across the life course. SEP measures included prospective measures of social class, income, educational qualifications and parental social class and contemporaneous measures of area deprivation. SETTING: Glasgow and the surrounding (West of Scotland) combined with Edinburgh and the surrounding area (the Lothians)...
June 15, 2017: BMJ Open
https://www.readbyqxmd.com/read/28595596/the-influence-of-dog-ownership-on-objective-measures-of-free-living-physical-activity-and-sedentary-behaviour-in-community-dwelling-older-adults-a-longitudinal-case-controlled-study
#14
Philippa Margaret Dall, Sarah Lesley Helen Ellis, Brian Martin Ellis, P Margaret Grant, Alison Colyer, Nancy Renee Gee, Malcolm Howard Granat, Daniel Simon Mills
BACKGROUND: There is some evidence to suggest that dog ownership may improve physical activity (PA) among older adults, but to date, studies examining this, have either depended on self-report or incomplete datasets due to the type of activity monitor used to record physical activity. Additionally, the effect of dog ownership on sedentary behaviour (SB) has not been explored. The aim of the current study was to address these issues by using activPAL monitors to evaluate the influence of dog ownership on health enhancing PA and SB in a longitudinal study of independently-mobile, community-dwelling older adults...
June 9, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28584189/the-efficacy-of-motivational-counselling-and-sms-reminders-on-daily-sitting-time-in-patients-with-rheumatoid-arthritis-a-randomised-controlled-trial
#15
RANDOMIZED CONTROLLED TRIAL
Tanja Thomsen, Mette Aadahl, Nina Beyer, Merete Lund Hetland, Katrine Løppenthin, Julie Midtgaard, Robin Christensen, Mikkel Østergaard, Poul Jørgen Jennum, Bente Appel Esbensen
OBJECTIVES: The aim of this report is to investigate the efficacy of an individually tailored, theory-based behavioural intervention for reducing daily sitting time, pain and fatigue, as well as improving health-related quality of life, general self-efficacy, physical function and cardiometabolic biomarkers in patients with rheumatoid arthritis (RA). METHODS: In this randomised controlled trial 150 patients with RA were randomised to an intervention or a no-intervention control group...
September 2017: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/28538672/the-influence-of-neighbourhoods-and-the-social-environment-on-sedentary-behaviour-in-older-adults-in-three-prospective-cohorts
#16
Richard J Shaw, Iva Čukić, Ian J Deary, Catharine R Gale, Sebastien F M Chastin, Philippa M Dall, Manon L Dontje, Dawn A Skelton, Laura Macdonald, Geoff Der
Sedentary behaviour is an emerging risk factor for poor health. This study aimed to identify ecological determinants of sedentary behaviour, for which evidence is currently scarce. The study participants were community dwelling adults from, respectively, the Lothian Birth Cohort 1936 (n = 271, mean age 79) and the 1930s (n = 119, mean age 83) and 1950s (n = 310, mean age 64) cohorts of the West of Scotland Twenty-07 study. The outcome measure, percentage of waking time spent sedentary (sedentary time), was measured using an activPAL activity monitor worn continuously for seven days...
May 24, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28483558/evaluation-of-the-activpal-accelerometer-for-physical-activity-and-energy-expenditure-estimation-in-a-semi-structured-setting
#17
Alexander H K Montoye, James M Pivarnik, Lanay M Mudd, Subir Biswas, Karin A Pfeiffer
OBJECTIVES: Evaluate accuracy of the activPAL and its proprietary software for prediction of time spent in physical activity (PA) intensities (sedentary, light, and moderate-to-vigorous) and energy expenditure (EE) and compare its accuracy to that of a machine learning model (ANN) developed from raw activPAL data. DESIGN: Semi-structured accelerometer validation in a laboratory setting. METHODS: Participants (n=41 [20 male]; age=22.0±4.2) completed a 90-min protocol performing 13 activities for 3-10min each and choosing activity order, duration, and intensity...
April 21, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28475565/reducing-office-workers-sitting-time-at-work-using-sit-stand-protocols-results-from-a-pilot-randomized-controlled-trial
#18
Ingrid Li, Martin G Mackey, Bridget Foley, Evangelos Pappas, Kate Edwards, Josephine Y Chau, Lina Engelen, Alexander Voukelatos, Anna Whelan, Adrian Bauman, Elisabeth Winkler, Emmanuel Stamatakis
OBJECTIVE: To examine the effects of different sit-stand protocols on work-time sitting and physical activity (PA) of office workers. METHODS: Participants (n = 26, 77% women, mean age 42) were randomly allocated to usual sitting (control) or one of three sit-stand protocols (intervention) facilitated by height-adjustable workstations for a 4-week period between June and August 2015. Sitting, standing, and stepping time were assessed by inclinometry (activPAL); leisure-time physical activity (LTPA) by self-report...
June 2017: Journal of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/28470767/sleep-wake-rhythm-disturbances-and-perceived-sleep-in-adolescent-chronic-fatigue-syndrome
#19
Maria Pedersen, Mirjam Ekstedt, Milada C Småstuen, Vegard B Wyller, Dag Sulheim, Even Fagermoen, Anette Winger, Edvard Pedersen, Harald Hrubos-Strøm
Chronic fatigue syndrome (CFS) is characterized by long-lasting, disabling and unexplained fatigue that is often accompanied by unrefreshing sleep. The aim of this cross-sectional study was to investigate sleep-wake rhythm and perceived sleep in adolescent CFS patients compared to healthy individuals. We analysed baseline data on 120 adolescent CFS patients and 39 healthy individuals included in the NorCAPITAL project. Activity measures from a uniaxial accelerometer (activPAL) were used to estimate mid-sleep time (mid-point of a period with sleep) and time in bed...
May 4, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28410327/the-activpaltm-accurately-classifies-activity-intensity-categories-in-healthy-adults
#20
Kate Lyden, Sarah Kozey Keadle, John Staudenmayer, Patty S Freedson
The activPAL (AP) monitor is well established for distinguishing sitting, standing, and stepping time. However, its validity in predicting time in physical activity intensity categories in a free-living environment has not been determined. PURPOSE: This study aimed to determine the validity of the AP in estimating time spent in sedentary, light, and moderate-to-vigorous physical activity (MVPA) in a free-living environment. METHODS: Thirteen participants (mean ± SD age = 24...
May 2017: Medicine and Science in Sports and Exercise
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