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https://www.readbyqxmd.com/read/28138134/time-spent-in-sedentary-posture-is-associated-with-waist-circumference-and-cardiovascular-risk
#1
W W Tigbe, M H Granat, N Sattar, M E J Lean
BACKGROUND: The relationship between metabolic risk and time spent sitting, standing and stepping has not been well established. The present study aimed to determine associations of objectively measured time spent siting, standing and stepping, with coronary heart disease (CHD) risk. METHODS: A cross-sectional study of healthy non-smoking Glasgow postal workers, n=111 (55 office-workers, 5 women, and 56 walking/delivery-workers, 10 women), who wore activPAL physical activity monitors for seven days...
January 31, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28129234/inflammation-relates-to-resistance-training-induced-hypertrophy-in-elderly-patients
#2
Kristoffer Larsen Norheim, Christopher Kjaer Cullum, Jesper Loevind Andersen, Michael Kjaer, Anders Karlsen
PURPOSE: Aging is associated with a gradual loss of muscle mass, which some have suggested to be accelerated by short periods of muscle disuse due to medical illness. We investigated the effect of hospitalization on skeletal muscle mass in acutely ill geriatric patients with focus on the relationship between systemic inflammatory marker C-reactive protein (CRP) and changes in muscle mass, as well as the influence of resistance training upon muscle mass. METHOD: Unilateral leg press resistance exercise was conducted daily during the hospital period...
January 26, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28121232/minimum-wear-duration-for-the-activpal%C3%A2-professional-activity-monitor-in-adolescent-females
#3
Kieran P Dowd, Helen Purtill, Deirdre M Harrington, Jane F Hislop, John J Reilly, Alan E Donnelly
OBJECTIVES: This study aims to determine the minimum number of days of monitoring required to reliably predict sitting/lying time, standing time, light intensity physical activity (LIPA), moderate-to-vigorous intensity physical activity (MVPA) and steps in adolescent females. METHODS: 195 adolescent females (mean age=15.7 years; SD=0.9) participated in the study. Participants wore the activPAL activity monitor for a seven day protocol. The amount of time spent sitting/lying, standing, in LIPA and in MVPA and the number of steps per day were quantified...
25, 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28095787/the-effects-of-habitual-functional-training-on-physical-functioning-in-patients-after-hip-fracture-the-protocol-of-the-hipfrac-study
#4
Kristi Elisabeth Heiberg, Vigdis Bruun-Olsen, Astrid Bergland
BACKGROUND: The survivors after hip fracture often report severe pain and loss of physical functioning. The poor outcomes cause negative impact on the person's physical functioning and quality of life and put a financial burden on society. Rehabilitation is important to improve physical functioning after hip fracture. To maintain the continuity in rehabilitation we have an assumption that it is of utmost importance to continue and progress the functional training that already started at the hospital, while the patients are transferred to short-term stays in a nursing home before they are returning to home...
January 17, 2017: BMC Geriatrics
https://www.readbyqxmd.com/read/28045706/improved-functional-performance-in-geriatric-patients-during-hospital-stay
#5
Anders Karlsen, Mads Rohde Loeb, Kristine Bramsen Andersen, Katrine Jeong Joergensen, Frederik Ulrik Scheel, Ida Fanny Turtumoeygard, Alberto Luis Rodrigues Perez, Michael Kjaer, Nina Beyer
OBJECTIVE: The aim of this work was to evaluate the time course of changes in strength and functional performance in elderly hospitalized medical patients. DESIGN: This was a prospective observational study in elderly medical patients of age 65 years or older at a geriatric department.Measurements were obtained on days 2 to 4, day 5 to 8, and days 9 to 13. Functional performance was measured with De Morton Mobility Index (DEMMI) test and a 30-second chair stand test (30-s CST)...
December 30, 2016: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/27992396/an-evaluation-of-accelerometer-derived-metrics-to-assess-daily-behavioral-patterns
#6
Sarah Kozey Keadle, Joshua N Sampson, Haocheng Li, Kate Lyden, Charles E Matthews, Raymond J Carroll
INTRODUCTION: The way physical activity (PA) and sedentary behavior (SB) are accumulated throughout the day (i.e., patterns) may be important for health, but identifying measurable and meaningful metrics of behavioral patterns is challenging. This study evaluated accelerometer-derived metrics to determine whether they predicted PA and SB patterns and were reliably measured. METHODS: We defined and measured 55 metrics that describe daily PA and SB using data collected by using the activPAL monitor in four studies...
January 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27973414/impact-of-an-8-month-trial-using-height-adjustable-desks-on-children-s-classroom-sitting-patterns-and-markers-of-cardio-metabolic-and-musculoskeletal-health
#7
Ana María Contardo Ayala, Jo Salmon, Anna Timperio, Bronwyn Sudholz, Nicola D Ridgers, Parneet Sethi, David W Dunstan
During school hours, children can sit for prolonged and unbroken periods of time. This study investigated the impact of an 8-month classroom-based intervention focusing on reducing and breaking-up sitting time on children's cardio-metabolic risk factors (i.e., body mass index, waist circumference, blood pressure) and perceptions of musculoskeletal discomfort. Two Year-6 classes (24 students per class) in one primary school were assigned to either an intervention or control classroom. The intervention classroom was equipped with height-adjustable desks and the teacher was instructed in the delivery of pedagogical strategies to reduce and break-up sitting in class...
December 10, 2016: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/27966063/effects-of-neighborhood-walkability-on-physical-activity-and-sedentary-behavior-long-term-post-bariatric-surgery
#8
Ryan E R Reid, Tamara E Carver, Tyler G R Reid, Marie-Aude Picard-Turcot, Kathleen M Andersen, Nicolas V Christou, Ross E Andersen
: ᅟ: Chronic inactivity and weight regain are serious health concerns following bariatric surgery. Neighborhood walkability is associated with higher physical activity and lower obesity rates in normal weight populations. PURPOSE: Explore the influence of neighborhood walkability on physical activity and sedentarism among long-term post-bariatric surgery patients. METHODS: Fifty-eight adults aged 50.5 ± 9.1 years, with a BMI of 34.6 ± 9...
December 13, 2016: Obesity Surgery
https://www.readbyqxmd.com/read/27965881/development-and-feasibility-testing-of-an-intervention-to-support-active-lifestyles-in-youths-with-type-1-diabetes-the-activpals-programme-a-study-protocol
#9
Fiona Mitchell, Alison Kirk, Kenneth Robertson, John J Reilly
BACKGROUND: The global incidence of type 1 diabetes is rising, and youths with type 1 diabetes continue to suffer poorer health than peers without diabetes. Evidence suggests youths with type 1 diabetes have physical activity (PA) levels well below the recommendations for health and have high levels of sedentary behaviour. An active lifestyle is therefore recommended to improve health. There is limited research showing effective lifestyle behaviour change in this population; therefore, an evidence gap exists between the need to promote physical activity in type 1 diabetes care and lack of understanding on how to do this...
2016: Pilot and Feasibility Studies
https://www.readbyqxmd.com/read/27965849/impact-of-sit-stand-desks-at-work-on-energy-expenditure-and-sedentary-time-protocol-for-a-feasibility-study
#10
Eleni Mantzari, Katrien Wijndaele, Soren Brage, Simon J Griffin, Theresa M Marteau
BACKGROUND: Prolonged sitting, an independent risk factor for disease development and premature mortality, is increasing in prevalence in high- and middle-income countries, with no signs of abating. Adults in such countries spend the largest proportion of their day in sedentary behaviour, most of which is accumulated at work. One promising method for reducing workplace sitting is the use of sit-stand desks. However, key uncertainties remain about this intervention, related to the quality of existing studies and a lack of focus on key outcomes, including energy expenditure...
2016: Pilot and Feasibility Studies
https://www.readbyqxmd.com/read/27941421/the-activpal-tm-accurately-classifies-activity-intensity-categories-in-healthy-adults
#11
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: 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...
December 9, 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27905148/simultaneous-validation-of-five-activity-monitors-for-use-in-adult-populations
#12
C Powell, B P Carson, K P Dowd, A E Donnelly
Numerous cut-points exist to measure physical activity by accelerometry. The ability to compare accelerometer findings from different devices from different locations may be advantageous to researchers. This study aimed to develop and validate cut-points for 1.5, 3, and 6 METs in five activity monitors simultaneously. Fifty-six participants (mean age=39.9 [±11.5] years) performed six activities while wearing a CosMED K4b(2) and five activity monitors: activPAL3 Micro, activPAL, ActiGraph GT1M, ActiGraph wGT3X-BT, and GENEActiv...
December 1, 2016: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/27904925/breaking-sitting-with-light-activities-vs-structured-exercise-a-randomised-crossover-study-demonstrating-benefits-for-glycaemic-control-and-insulin-sensitivity-in-type-2-diabetes
#13
Bernard M F M Duvivier, Nicolaas C Schaper, Matthijs K C Hesselink, Linh van Kan, Nathalie Stienen, Bjorn Winkens, Annemarie Koster, Hans H C M Savelberg
AIMS/HYPOTHESIS: We aimed to examine the effects of breaking sitting with standing and light-intensity walking vs an energy-matched bout of structured exercise on 24 h glucose levels and insulin resistance in patients with type 2 diabetes. METHODS: In a randomised crossover study, 19 patients with type 2 diabetes (13 men/6 women, 63 ± 9 years old) who were not using insulin each followed three regimens under free-living conditions, each lasting 4 days: (1) Sitting: 4415 steps/day with 14 h sitting/day; (2) Exercise: 4823 steps/day with 1...
March 2017: Diabetologia
https://www.readbyqxmd.com/read/27878845/evaluation-of-raw-acceleration-sedentary-thresholds-in-children-and-adults
#14
Maria Hildebrand, Bjørge H Hansen, Vincent T van Hees, Ulf Ekelund
The aim was to develop sedentary (sitting/lying) thresholds from hip and wrist worn raw tri-axial acceleration data from the ActiGraph and GENEActiv, and to examine the agreement between free-living time spent below these thresholds with sedentary time estimated by the activPAL. Sixty children and adults wore an ActiGraph and GENEActiv on the hip and wrist while performing six structured activities, before wearing the monitors, in addition to an activPAL, for 24 h. Receiver operating characteristic (ROC) curves were used to determine sedentary thresholds based on activities in the laboratory...
November 22, 2016: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/27780682/beyond-the-front-end-investigating-a-thigh-worn-accelerometer-device-for-step-count-and-bout-detection-in-parkinson-s-disease
#15
A Godfrey, R Morris, A Hickey, S Del Din
Free-living ambulation with accelerometer-based devices is an attractive methodology to assess habitual behaviour within Parkinson's disease (PD). However, slowness of movement can contribute to difficulty in quantifying ambulatory/walking outcomes within this group by these devices. This study investigates the use of a commercial accelerometer device (activPAL(™)) in those with moderate PD to understand its proprietary software (inbuilt algorithm) limitations. The values provided by the proprietary software are evaluated in comparison to novel algorithms on the same raw data to examine limitations for use within this cohort...
October 22, 2016: Medical Engineering & Physics
https://www.readbyqxmd.com/read/27780084/accuracy-of-inclinometer-functions-of-the-activpal-and-actigraph-gt3x-a-focus-on-physical-activity
#16
Hyun-Sung An, Youngwon Kim, Jung-Min Lee
PURPOSE: The purpose of the study was to examine the accuracy of inclinometer functions of the ActiGraph GT3X+ (AG) (worn on the waist and wrist) and the activPAL (AP) in assessing time spent sitting, standing, and stepping. METHODS: A total of 62 adults (age: 18-40 yrs; male:37; female:25) wore three activity monitors (AG waist, and AG wrist, and AP) while completing 15 different types of activities. The 15 activities were classified into 3 different postures (sitting, standing, and stepping) based on the directly observed behaviors...
January 2017: Gait & Posture
https://www.readbyqxmd.com/read/27724922/optimising-the-validity-and-completion-of-adherence-diaries-a-multiple-case-study-and-randomised-crossover-trial
#17
Rachael Frost, Doreen McClurg, Marian Brady, Brian Williams
BACKGROUND: Diaries are the most commonly used adherence measurement method in home-based rehabilitation trials, yet their completion and validity varies widely between trials. We aimed to: (1) generate theory to explain this variation, (2) create an optimised diary and (3) evaluate the optimised diary's validity. METHODS: Stage 1. DEVELOPMENT: using a multiple case study approach, we collected trialist interviews (n = 7), trial publications (n = 16) and diaries (n = 7) from seven purposively sampled UK rehabilitation trials...
October 10, 2016: Trials
https://www.readbyqxmd.com/read/27689593/uprising-an-examination-of-sit-stand-workstations-mental-health-and-work-ability%C3%A2-in-sedentary-office-workers-in%C3%A2-western-australia
#18
Rochelle Tobin, Justine Leavy, Jonine Jancey
BACKGROUND: Office-based staff spend around three quarters of their work day sitting. People who sit for long periods while at work are at greater risk of adverse health outcomes. OBJECTIVE: The pilot study aimed to determine the effect of sit-stand workstations on office-based staff sedentary and physical activity behaviors, work ability and self-reported physical and mental health outcomes. METHODS: A two-group pre-post study design assessed changes in sedentary and physical activity behaviors (time spent sitting, standing and stepping and sit-stand transitions and number of steps taken) work ability and physical and mental health...
October 17, 2016: Work: a Journal of Prevention, Assessment, and Rehabilitation
https://www.readbyqxmd.com/read/27554315/measuring-activity-performance-of-continuing-care-residents-using-the-activpal-an-exploratory-study
#19
C S Chan, S E Slaughter, C A Jones, A S Wagg
Few studies have measured the activity patterns of continuing care residents using objective, uniaxial, accelerometers such as the activPAL. This exploratory study described the activity performance of continuing care residents and explored the correlation of activity performance with grip strength, falls and mobility. Data were gathered from 24 continuing care residents. Participants (82.3 ± 5.8 years of age), wore the activPAL an average of 12.60 hours per day (SD = 0.96) and were stepping for a median of 0...
2016: Journal of Frailty & Aging
https://www.readbyqxmd.com/read/27542603/is-self-reporting-workplace-activity-worthwhile-validity-and-reliability-of-occupational-sitting-and-physical-activity-questionnaire-in-desk-based-workers
#20
Scott J Pedersen, Cecilia M Kitic, Marie-Louise Bird, Casey P Mainsbridge, P Dean Cooley
BACKGROUND: With the advent of workplace health and wellbeing programs designed to address prolonged occupational sitting, tools to measure behaviour change within this environment should derive from empirical evidence. In this study we measured aspects of validity and reliability for the Occupational Sitting and Physical Activity Questionnaire that asks employees to recount the percentage of work time they spend in the seated, standing, and walking postures during a typical workday. METHODS: Three separate cohort samples (N = 236) were drawn from a population of government desk-based employees across several departmental agencies...
2016: BMC Public Health
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