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ActivPAL

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https://www.readbyqxmd.com/read/29128417/exercise-more-or-sit-less-a-randomized-trial-assessing-the-feasibility-of-two-advice-based-interventions-in-obese-inactive-adults
#1
Kristian Overgaard, Kirstine Nannerup, Mette Kirstine Birk Lunen, Helle Terkildsen Maindal, Ryan G Larsen
OBJECTIVES: The risk of metabolic and cardiovascular disease may be reduced by a healthy pattern of daily physical activity. We investigated the feasibility and preliminary effectiveness of advice-based interventions aiming at either increasing moderate-to-vigorous intensity physical activity (MVPA) or reducing sedentary time (ST) in obese volunteers. DESIGN: Randomized non-blinded two-armed trial. METHOD: Inactive, obese adults were randomly assigned to reduce sedentary behavior (SitLess) (n=30) or increase MVPA (ExMore) (n=29) for 4 weeks...
November 7, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/29090513/objectively-measured-physical-activity-and-sedentary-behavior-in-successful-weight-loss-maintainers
#2
Danielle M Ostendorf, Kate Lyden, Zhaoxing Pan, Holly R Wyatt, James O Hill, Edward L Melanson, Victoria A Catenacci
OBJECTIVE: The objective of this study was to compare patterns of objectively measured moderate-to-vigorous physical activity (MVPA, ≥ 3.00 metabolic equivalents [METs]), light-intensity physical activity (LPA, 1.50-2.99 METs), and sedentary behavior (SB, < 1.50 METs) in successful weight loss maintainers (WLMs), normal weight controls (NC), and controls with overweight/obesity (OC). METHODS: Participants (18-65 y) were recruited in three groups: WLM (maintaining ≥ 13...
November 1, 2017: Obesity
https://www.readbyqxmd.com/read/29081985/feasibility-of-a-real-time-self-monitoring-device-for-sitting-less-and-moving-more-a-randomised-controlled-trial
#3
Anne Martin, Jacob M Adams, Christopher Bunn, Jason M R Gill, Cindy M Gray, Kate Hunt, Douglas J Maxwell, Hidde P van der Ploeg, Sally Wyke, Nanette Mutrie
OBJECTIVES: Time spent inactive and sedentary are both associated with poor health. Self-monitoring of walking, using pedometers for real-time feedback, is effective at increasing physical activity. This study evaluated the feasibility of a new pocket-worn sedentary time and physical activity real-time self-monitoring device (SitFIT). METHODS: Forty sedentary men were equally randomised into two intervention groups. For 4 weeks, one group received a SitFIT providing feedback on steps and time spent sedentary (lying/sitting); the other group received a SitFIT providing feedback on steps and time spent upright (standing/stepping)...
2017: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/29040225/validation-of-a-novel-device-to-measure-and-provide-feedback-on-sedentary-behavior
#4
Jason M R Gill, Nabeha S A Hawari, Douglas J Maxwell, David Louden, Nikos Mourselas, Christopher Bunn, Cindy M Gray, Hidde P van der Ploeg, Kate Hunt, Anne Martin, Sally Wyke, Nanette Mutrie
PURPOSE: Pedometers, which enable self-monitoring of step counts, are effective in facilitating increases in physical activity. Similar devices which provide real-time feedback on sedentary (sitting) behavior are limited. This study aimed to develop and validate a novel device - the SitFIT - which could accurately measure and provide feedback on sedentary behavior and physical activity. METHODS: The SitFIT is a tri-axial accelerometer, developed by PAL Technologies, which is worn in the front trouser pocket...
October 16, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28987642/handgrip-strength-shows-no-improvements-in-geriatric-patients-with-persistent-inflammation-during-hospitalization
#5
Kristoffer Larsen Norheim, Ivan Bautmans, Michael Kjaer
PURPOSE: Hospital-associated deconditioning due to a combination of illness and inactivity is a serious problem for elderly adults. Here we investigate whether persistence in inflammatory status affects changes in physical function during short-term hospitalization. METHODS: This was a prospective observational study in elderly medical patients at a geriatric department. Measurements were obtained at admission and one week after admission and included de Morton Mobility Index (DEMMI) test, 30-second chair stand test (30-s CST), 4-m gait speed (4-m GST) test, handgrip strength, activity levels determined with ActivPALs, and concentrations of circulating C-reactive protein (CRP) from blood samples...
December 1, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/28969435/patterns-of-sedentary-time-and-ambulatory-physical-activity-in-a-danish-population-of-girls-and-women-with-rett-syndrome
#6
Michelle Stahlhut, Jenny Downs, Mette Aadahl, Helen Leonard, Anne-Marie Bisgaard, Eva Nordmark
BACKGROUND: Rett syndrome (RTT) is a rare neurodevelopmental disorder leading to multiple disabilities and high dependency on caregivers. This study aimed to: (1) describe the patterns of sedentary time and daily steps and (2) identify the association of individual and environmental characteristics with sedentary time. METHODS: All Danish females with RTT older than 5 years of age and with a MECP2 mutation were invited to participate. The activPAL and StepWatch Activity Monitor (SAM) were worn by participants for at least four days...
October 2, 2017: Disability and Rehabilitation
https://www.readbyqxmd.com/read/28954969/evaluation-of-worker-s-living-activity-time-questionnaire-jniosh-wlaq-primarily-to-assess-workers-sedentary-behavior
#7
Tomoaki Matsuo, Rina So, Hiroyuki Sasai, Kazunori Ohkawara
OBJECTIVES: The National Institute of Occupational Safety and Health, Japan (JNIOSH) developed a new Worker's Living Activity-time Questionnaire (JNIOSH-WLAQ) which primarily evaluates workers' sedentary behavior. The purpose of this study was to investigate the test-retest reliability and criterion validity of the WLAQ. METHODS: One hundred and thirty eight workers completed the WLAQ twice in one week. During the week, they wore a thigh-worn inclinometer (activPAL) and maintained a daily log as criteria measurements...
September 26, 2017: Sangyō Eiseigaku Zasshi, Journal of Occupational Health
https://www.readbyqxmd.com/read/28952902/why-older-adults-spend-time-sedentary-and-break-their-sedentary-behavior-a-mixed-methods-approach-using-life-logging-equipment
#8
Manon L Dontje, Calum F Leask, Juliet Harvey, Dawn A Skelton, Sebastien F M Chastin
Older adults are recommended to reduce their sedentary time to promote healthy ageing. To develop effective interventions identifying when, why, and how older adults are able to change their sitting habits is important. The aim of this mixed-method study was to improve our understanding of reasons for (breaking) sedentary behavior in older adults. Thirty older adults (74.0 (±5.3) years old, 73% women) were asked about their believed reasons for (breaking) sedentary behavior, and about their actual reasons when looking at a personal storyboard with objective records of activPAL monitor data and time-lapse camera pictures showing all their periods of sedentary time in a day...
September 27, 2017: Journal of Aging and Physical Activity
https://www.readbyqxmd.com/read/28934319/an-examination-of-objectively-measured-sedentary-behavior-and-mental-well-being-in-adults-across-week-days-and-weekends
#9
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
#10
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
#11
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
#12
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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
Ana Paula C 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...
July 7, 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
#19
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
#20
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
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