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https://www.readbyqxmd.com/read/29772819/do-young-people-ever-sit-still-variations-in-accelerometer-counts-muscle-activity-and-heart-rate-across-various-sedentary-activities-in-youth
#1
Evi van Ekris, Mai J M Chinapaw, Joost Rotteveel, Teatske M Altenburg
Evidence of adverse health effects of TV viewing is stronger than for overall sedentary behaviour in youth. One explanation may be that TV viewing involves less body movement than other sedentary activities. Variations in body movement across sedentary activities are currently unknown, as are age differences in such variations. This study examined body movement differences across various sedentary activities in children and adolescents, assessed by hip-, thigh- and wrist-worn accelerometers, muscle activity and heart rate...
May 17, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29768507/attitudes-to-ageing-and-objectively-measured-sedentary-and-walking-behaviour-in-older-people-the-lothian-birth-cohort-1936
#2
Catharine R Gale, Iva Čukić, Sebastien F Chastin, Philippa M Dall, Manon L Dontje, Dawn A Skelton, Ian J Deary
BACKGROUND: Prolonged sitting and low activity-both common in older people-are associated with increased mortality and poorer health. Whether having a more negative attitude to ageing is associated with higher levels of these behaviours is unclear. OBJECTIVE: We investigated the prospective relationship between attitudes to ageing and objectively measured sedentary and walking behaviour. METHODS: Participants were 271 members of the Lothian Birth Cohort 1936...
2018: PloS One
https://www.readbyqxmd.com/read/29751046/disentangling-the-relationship-between-sedentariness-and-obesity-activity-intensity-but-not-sitting-posture-is-associated-with-adiposity-in-women
#3
Anna Myers, Catherine Gibbons, Edward Butler, Michelle Dalton, Nicola Buckland, John Blundell, Graham Finlayson
BACKGROUND: The relationship between free-living sedentary behaviour (SB) and obesity is unclear. Studies may arrive at disparate conclusions because of inconsistencies and limitations when defining and measuring free-living SB. The aim of this cross-sectional study was to examine whether the relationship between SB and adiposity differed depending on the way SB was operationally defined and objectively measured. METHODS: Sixty-three female participants aged 37...
May 8, 2018: Physiology & Behavior
https://www.readbyqxmd.com/read/29671330/achieving-canadian-physical-activity-guidelines-is-associated-with-better-vascular-function-independent-of-aerobic-fitness-and-sedentary-time-in-older-adults
#4
Myles W O'Brien, Susan A Robinson, Ryan J Frayne, Said Mekary, Jonathon R Fowles, Derek S Kimmerly
Canadian physical activity guidelines recommend older adults accumulate 150 minutes of weekly moderate-vigorous physical activity (MVPA). Older adults who are insufficiently active may have reduced blood vessel health and an increased risk of cardiovascular disease. We tested this hypothesis in 11 older adults who did (7♀; 65±5 years; MVPA=239±81 minutes/week) and 10 older adults who did not (7♀; 68±9 years; MVPA=95±33 minutes/week) meet MVPA guidelines. Flow-mediated dilation (FMD) in the brachial (BA) and popliteal (POP) arteries, as well as, nitroglycerin-mediated dilation (NMD; endothelial-independent dilation) in the POP were assessed via ultrasonography...
April 19, 2018: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/29608541/the-effect-of-interrupting-sedentary-behavior-on-the-cardiometabolic-health-of-adults-with-sedentary-occupations-a-pilot-study
#5
Jason R Dunning, Joanne A McVeigh, David Goble, Rebecca M Meiring
OBJECTIVE: To determine whether mobile phone text messages could modify objectively measured sedentary behaviour and cardiometabolic health in office workers. METHODS: Nine males and 12 females (mean (SD): 27.5 (5.7) years, 23.8 (2.8) kg/m) were assigned to a control (CON) or intervention (PROMPT) group. PROMPT received an activity-promoting text message during office hours. Participants wore an actiGraph and activPAL accelerometer for 7 days during and after the intervention...
March 30, 2018: Journal of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/29533713/activpal%C3%A2-determined-sedentary-behaviour-physical-activity-and-academic-achievement-in-college-students
#6
Mireia Felez-Nobrega, Charles H Hillman, Kieran P Dowd, Eva Cirera, Anna Puig-Ribera
The aim of this study was to examine relationships between activPAL™-determined sedentary behavior (SB) and physical activity (PA) with academic achievement. A total of 120 undergraduates (N = 57 female; 20.6 ± 2.3 years) participated in the study. Academic achievement was measured as the grade point average obtained from all completed courses. Participants wore on the right tight an activPAL™ for 7 days to determine total sedentary time, total number of sedentary breaks, sedentary bouts, standing time, light and moderate-to-vigorous physical activity (MVPA)...
March 13, 2018: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29500158/usage-acceptability-and-effectiveness-of-an-activity-tracker-in-a-randomized-trial-of-a-workplace-sitting-intervention-mixed-methods-evaluation
#7
Charlotte L Brakenridge, Genevieve N Healy, Elisabeth Ah Winkler, Brianna S Fjeldsoe
BACKGROUND: Wearable activity trackers are now a common feature of workplace wellness programs; however, their ability to impact sitting time (the behavior in which most of the desk-based workday is spent) is relatively unknown. This study evaluated the LUMOback, an activity tracker that targets sitting time, as part of a cluster-randomized workplace sitting intervention in desk-based office workers. OBJECTIVE: Study objectives were to explore: (1) office workers' self-directed LUMOback use, (2) individual-level characteristics associated with LUMOback use, (3) the impact of LUMOback use on activity and sitting behaviors, and (4) office workers' perceived LUMOback acceptability...
March 2, 2018: Interactive Journal of Medical Research
https://www.readbyqxmd.com/read/29484351/assessment-of-physical-activity-of-hospitalised-older-adults-a-systematic-review
#8
S E R Lim, K Ibrahim, A A Sayer, H C Roberts
BACKGROUND: The assessment of physical activity levels of hospitalised older people requires accurate and reliable measures. Physical activities that older people in hospital commonly engage in include exercises and walking. Measurement of physical activity levels of older inpatients is essential to evaluate the impact of interventions to improve physical activity levels and to determine associations between physical activity in hospital and other health-related outcome measures. OBJECTIVE: To determine which measures are used to measure physical activity of older people in hospital, and to describe their properties and applications...
2018: Journal of Nutrition, Health & Aging
https://www.readbyqxmd.com/read/29482617/systematic-comparative-validation-of-self-report-measures-of-sedentary-time-against-an-objective-measure-of-postural-sitting-activpal
#9
S F M Chastin, M L Dontje, D A Skelton, I Čukić, R J Shaw, J M R Gill, C A Greig, C R Gale, I J Deary, G Der, P M Dall
BACKGROUND: Sedentary behaviour is a public health concern that requires surveillance and epidemiological research. For such large scale studies, self-report tools are a pragmatic measurement solution. A large number of self-report tools are currently in use, but few have been validated against an objective measure of sedentary time and there is no comparative information between tools to guide choice or to enable comparison between studies. The aim of this study was to provide a systematic comparison, generalisable to all tools, of the validity of self-report measures of sedentary time against a gold standard sedentary time objective monitor...
February 26, 2018: International Journal of Behavioral Nutrition and Physical Activity
https://www.readbyqxmd.com/read/29466954/cognitive-function-and-the-agreement-between-self-reported-and-accelerometer-accessed-physical-activity
#10
Florian Herbolsheimer, Matthias W Riepe, Richard Peter
BACKGROUND: Numerous studies have reported weak or moderate correlations between self-reported and accelerometer-assessed physical activity. One explanation is that self-reported physical activity might be biased by demographic, cognitive or other factors. Cognitive function is one factor that could be associated with either overreporting or underreporting of daily physical activity. Difficulties in remembering past physical activities might result in recall bias. Thus, the current study examines whether the cognitive function is associated with differences between self-reported and accelerometer-assessed physical activity...
February 21, 2018: BMC Geriatrics
https://www.readbyqxmd.com/read/29443824/improving-hip-worn-accelerometer-estimates-of-sitting-using-machine-learning-methods
#11
Jacqueline Kerr, Jordan Carlson, Suneeta Godbole, Lisa Cadmus-Bertram, John Bellettiere, Sheri Hartman
PURPOSE: To improve estimates of sitting time from hip worn accelerometers used in large cohort studies by employing machine learning methods developed on free living activPAL data. METHODS: Thirty breast cancer survivors concurrently wore a hip worn accelerometer and a thigh worn activPAL for 7 days. A random forest classifier, trained on the activPAL data, was employed to detect sitting, standing and sit-stand transitions in 5 second windows in the hip worn accelerometer...
February 13, 2018: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29434419/physical-activity-of-icu-survivors-during-acute-admission-agreement-of-the-activpal-with-observation
#12
Claire E Baldwin, Kylie N Johnston, Alex V Rowlands, Marie T Williams
Purpose: We estimated the agreement of a thigh-worn accelerometer, the activPAL, used to measure activity and sedentary parameters, with observed mobility assessments of intensive care unit (ICU) survivors. Method: We prospectively compared activPAL measurements with direct observation during assessments at discharge from the ICU or acute hospital in eight participants with a median age of 56 (1st-3rd quartile 48-65) years and an Acute Physiology and Chronic Health Evaluation II score of 23 (1st-3rd quartile 17-24)...
2018: Physiotherapy Canada. Physiothérapie Canada
https://www.readbyqxmd.com/read/29434012/reducing-sedentary-time-for-obese-older-adults-protocol-for-a-randomized-controlled-trial
#13
Dori E Rosenberg, Amy K Lee, Melissa Anderson, Anne Renz, Theresa E Matson, Jacqueline Kerr, David Arterburn, Jennifer B McClure
BACKGROUND: Older adults have high rates of obesity and are prone to chronic health conditions. These conditions are in part due to high rates of sedentary time (ST). As such, reducing ST could be an innovative strategy for improving health outcomes among obese older adults. To test this theory, we developed a novel, technology-enhanced intervention to reduce sitting time (I-STAND) and pilot tested it to assess the feasibility, acceptability, and preliminary effects of the intervention on ST and biometric outcomes...
February 12, 2018: JMIR Research Protocols
https://www.readbyqxmd.com/read/29426816/feasibility-and-efficacy-of-a-parent-focused-text-message-delivered-intervention-to-reduce-sedentary-behavior-in-2-to-4-year-old-children-mini-movers-pilot-randomized-controlled-trial
#14
Katherine L Downing, Jo Salmon, Trina Hinkley, Jill A Hnatiuk, Kylie D Hesketh
BACKGROUND: Despite public health guidelines to limit sedentary behavior, many young children spend large amounts of time sedentary (eg, screen and sitting time) during waking hours. OBJECTIVE: The objective of this study was to test the feasibility and efficacy of a parent-focused, predominantly text message-delivered intervention to support parents to reduce the amount of time their children spend in sedentary behavior. METHODS: Mini Movers was a pilot randomized controlled trial delivered to parents of 2- to 4-year-old children in Melbourne, Australia...
February 9, 2018: JMIR MHealth and UHealth
https://www.readbyqxmd.com/read/29409737/impact-of-a-classroom-standing-desk-intervention-on-daily-objectively-measured-sedentary-behavior-and-physical-activity-in-youth
#15
Danilo R Silva, Cláudia S Minderico, Fernando Pinto, Paul J Collings, Edilson S Cyrino, Luís B Sardinha
OBJECTIVES: We investigated the impact of a standing desk intervention on daily objectively monitored sedentary behavior and physical activity in 6th grade school students. DESIGN: Cluster non-randomised controlled trial. METHOD: Two classes (intervention students: n=22 [aged 11.8±0.4years]; control students: n=27 [11.6±0.5years]) from a public school in Lisbon were selected. The intervention involved replacing traditional seated classroom desks for standing desks, for a total duration of 16 weeks, in addition to performing teacher training and holding education/motivation sessions with students and parents...
February 3, 2018: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/29381649/video-recorded-validation-of-wearable-step-counters-under-free-living-conditions
#16
Lindsay P Toth, Susan Park, Cary M Springer, McKenzie D Feyerabend, Jeremy A Steeves, David R Bassett
PURPOSE: The purpose of this study was to determine the accuracy of 14 step counting methods under free-living conditions. MethodsTwelve adults (mean±SD, age: 35±13 yr) wore a chest harness that held a GoPro camera pointed down at the feet during all waking hours for one day. The GoPro continuously recorded video of all steps taken throughout the day. Simultaneously, participants wore two StepWatch [SW] devices on each ankle (all programmed with different settings), one activPAL [AP] on each thigh, four devices at the waist (Fitbit Zip [FZ], Yamax Digi-Walker SW-200 [DW], New Lifestyles NL-2000 [NL], and ActiGraph GT9X [AG]), and two devices on the dominant and non-dominant wrists (Fitbit Charge [FC] and AG)...
January 30, 2018: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29372071/a-randomised-feasibility-study-to-investigate-the-impact-of-education-and-the-addition-of-prompts-on-the-sedentary-behaviour-of-office-workers
#17
Catriona O'Dolan, Margaret Grant, Maggie Lawrence, Philippa Dall
Background: Office workers have been identified as being at risk of accumulating high amounts of sedentary time in prolonged events during work hours, which has been associated with increased risk of a number of long-term health conditions.There is some evidence that providing advice to stand at regular intervals during the working day, and using computer-based prompts, can reduce sedentary behaviour in office workers. However, evidence of effectiveness, feasibility and acceptability for these types of intervention is currently limited...
2018: Pilot and Feasibility Studies
https://www.readbyqxmd.com/read/29368676/physical-performance-following-acute-high-risk-abdominal-surgery-a-prospective-cohort-study
#18
Line Rokkedal Jønsson, Lina Holm Ingelsrud, Line Toft Tengberg, Thomas Bandholm, Nicolai Bang Foss, Morten Tange Kristensen
BACKGROUND: Acute high-risk abdominal (AHA) surgery is associated with high mortality, multiple postoperative complications and prolonged hospital stay. Further development of strategies for enhanced recovery programs following AHA surgery is needed. The aim of this study was to describe physical performance and barriers to independent mobilization among patients who received AHA surgery (postoperative days [POD] 1-7). METHODS: Patients undergoing AHA surgery were consecutively enrolled from a university hospital in Denmark...
February 2018: Canadian Journal of Surgery. Journal Canadien de Chirurgie
https://www.readbyqxmd.com/read/29321814/the-epigenetic-clock-and-objectively-measured-sedentary-and-walking-behavior-in-older-adults-the-lothian-birth-cohort-1936
#19
Catharine R Gale, Riccardo E Marioni, Iva Čukić, Sebastien F Chastin, Philippa M Dall, Manon L Dontje, Dawn A Skelton, Ian J Deary
Background: Estimates of biological age derived from DNA-methylation patterns-known as the epigenetic clock-are associated with mortality, physical and cognitive function, and frailty, but little is known about their relationship with sedentary behavior or physical activity. We investigated the cross-sectional relationship between two such estimates of biological age and objectively measured sedentary and walking behavior in older people. Methods: Participants were 248 members of the Lothian Birth Cohort 1936...
2018: Clinical Epigenetics
https://www.readbyqxmd.com/read/29307108/effect-of-employment-status-on-physical-activity-and-sedentary-behavior-long-term-post-bariatric-surgery
#20
Ryan E R Reid, Katerina Jirasek, Tamara E Carver, Tyler G R Reid, Kathleen M Andersen, Nicolas V Christou, Ross E Andersen
INTRODUCTION: Inactivity and weight regain are serious problems post-bariatric surgery. Nearly half of waking time is spent at work, representing an opportunity to accumulate physical activity and help avoid weight regain. PURPOSE: The purpose of this study is to evaluate potential differences in physical activity and sedentary time by employment status post-bariatric surgery. METHODS: A total of 48 adults (employed (n = 19), unemployed (n = 29)) aged 50...
March 2018: Obesity Surgery
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