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Accelerometry

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https://www.readbyqxmd.com/read/28727533/transit-rider-body-mass-index-before-and-after-completion-of-street-light-rail-line-in-utah
#1
Barbara B Brown, Ken R Smith, Wyatt A Jensen, Doug Tharp
OBJECTIVES: To determine whether 2012 to 2015 (times 1-3) ridership changes correlated with body mass index (BMI) changes after transit line completion in Salt Lake City, Utah. METHODS: We used Global Positioning System/accelerometry-measured transit ridership measures in 2012 to 2013 (times 1-2) to compare objective and self-reported ridership. Regression models related changes in objectively measured ridership (times 1-2) and self-reported ridership (times 1-2 and times 1-3) to BMI changes, adjusting for control variables...
July 20, 2017: American Journal of Public Health
https://www.readbyqxmd.com/read/28720556/ecological-momentary-assessment-of-physical-activity-validation-study
#2
Gregory Knell, Kelley Pettee Gabriel, Michael S Businelle, Kerem Shuval, David W Wetter, Darla E Kendzor
BACKGROUND: Ecological momentary assessment (EMA) may elicit physical activity (PA) estimates that are less prone to bias than traditional self-report measures while providing context. OBJECTIVES: The objective of this study was to examine the convergent validity of EMA-assessed PA compared with accelerometry. METHODS: The participants self-reported their PA using International Physical Activity Questionnaire (IPAQ) and Behavioral Risk Factor Surveillance System (BRFSS) and wore an accelerometer while completing daily EMAs (delivered through the mobile phone) for 7 days...
July 18, 2017: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/28718295/accelerometer-determined-physical-activity-and-all-cause-mortality-in-a-national-prospective-cohort-study-of-adults-post-acute-stroke
#3
Paul D Loprinzi, Ovuokerie Addoh
PURPOSE: No epidemiological study has examined the association of objectively measured physical activity with all-cause mortality among adults who have had a stroke, which was the purpose of this study. DESIGN: Prospective. SETTING: National Health and Nutrition Examination Survey 2003 to 2006. PARTICIPANTS: One hundred eighty-four patients with stroke. MEASURES: Physical activity assessed via accelerometry (ActiGraph 7164), with stroke assessed via self-report of physician diagnosis...
January 1, 2017: American Journal of Health Promotion: AJHP
https://www.readbyqxmd.com/read/28717827/individual-and-environmental-correlates-of-objectively-measured-physical-activity-and-sedentary-time-in-adults-from-curitiba-brazil
#4
Priscila Bezerra Gonçalves, Pedro Curi Hallal, Adriano Akira Ferreira Hino, Rodrigo Siqueira Reis
OBJECTIVES: This study assessed the association of individual and neighborhood environment characteristics and objectively measured physical activity (PA) and sedentary time (ST) in adults from Curitiba, Brazil. METHODS: A population-based cross-sectional study was conducted through face-to-face household interviews in 2010. The analytic sample included 305 adults aged 20-65 years recruited from 32 census tracts selected according to neighborhood walkability and socioeconomic status...
July 17, 2017: International Journal of Public Health
https://www.readbyqxmd.com/read/28712953/physical-activity-levels-in-children-with-sensory-problems-cross-sectional-analyses-from-the-millennium-cohort-study
#5
Genevieve Williams, Daniel Aggio, Brendon Stubbs, Shahina Pardhan, Benjamin Gardner, Lee Smith
BACKGROUND: Hearing and vision impairments/problems are associated with increased risk of premature mortality in adulthood. One potential pathway explaining this association is reduced levels of physical activity. Reductions in activity levels due to sensory impairments may commence earlier in life; however, associations between sensory impairments/problems and activity levels in childhood are not well understood. OBJECTIVE: The objective of this study was to examine associations between hearing and vision problems and objectively measured activity levels in a representative sample of British children...
July 11, 2017: Disability and Health Journal
https://www.readbyqxmd.com/read/28708118/low-energy-turnover-of-physically-inactive-participants-as-a-determinant-of-insufficient-mineral-and-vitamin-intake-in-nhanes
#6
Juliane Heydenreich, Katarina Melzer, Céline Flury, Bengt Kayser
Micronutrient requirements do not scale linearly with physical activity-related energy expenditure (AEE). Inactive persons may have insufficient micronutrient intake because of low energy intake (EI). We extracted data from NHANES 2003-2006 on 4015 adults (53 ± 18 years (mean ± SD), 29 ± 6 kg/m², 48% women) with valid physical activity (accelerometry) and food intake (2 × 24 h-dietary recall) measures. Total energy expenditure (TEE) was estimated by summing the basal metabolic rate (BMR, Harris-Benedict), AEE, and 10% of TEE for the thermic effect of food, to calculate the physical activity levels (PAL = TEE/BMR)...
July 14, 2017: Nutrients
https://www.readbyqxmd.com/read/28707968/accelerometry-improving-objective-assessments-of-therapeutic-impact-in-pediatric-pulmonary-arterial-hypertension
#7
Eric D Austin, Jeffrey A Feinstein
No abstract text is available yet for this article.
July 15, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28705994/wearable-brain-imaging-with-multi-modal-physiological-recording
#8
Gary E Strangman, Vladimir Ivkovic, Quan Zhang
The brain is a central component of cognitive and physical human performance. Measures including functional brain activation, cerebral perfusion, cerebral oxygenation, evoked electrical responses, and resting hemodynamic and electrical activity are all related to, or can predict health status or performance decrements. However, measuring brain physiology typically requires large, stationary machines that are not suitable for mobile or self-monitoring. Moreover, when individuals are ambulatory, systemic physiological fluctuations-e...
July 13, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28704684/root-mean-square-of-lower-trunk-acceleration-during-walking-in-patients-with-unilateral-total-hip-replacement
#9
Osamu Wada, Tsuyoshi Asai, Yoshinori Hiyama, Shingo Nitta, Kiyonori Mizuno
Although several studies have described abnormal trunk motion before and after total hip arthroplasty (THA) surgery, few studies have examined trunk motion using accelerometry. The aim of this study was to determine whether abnormal trunk motion persisted after THA using accelerometry. A total of 24 female patients (61.0±6.9years) and 20 healthy female subjects (59.9±6.8years) participated in this study. Patients were assessed at 1 month prior to surgery and 12 months after surgery. Trunk acceleration during gait was measured using a triaxial accelerometer attached to the L3 spinous process...
July 8, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28693034/large-scale-physical-activity-data-reveal-worldwide-activity-inequality
#10
Tim Althoff, Rok Sosič, Jennifer L Hicks, Abby C King, Scott L Delp, Jure Leskovec
To be able to curb the global pandemic of physical inactivity and the associated 5.3 million deaths per year, we need to understand the basic principles that govern physical activity. However, there is a lack of large-scale measurements of physical activity patterns across free-living populations worldwide. Here we leverage the wide usage of smartphones with built-in accelerometry to measure physical activity at the global scale. We study a dataset consisting of 68 million days of physical activity for 717,527 people, giving us a window into activity in 111 countries across the globe...
July 10, 2017: Nature
https://www.readbyqxmd.com/read/28692632/high-habitual-physical-activity-improves-acute-energy-compensation-in-nonobese-adults
#11
Kristine Beaulieu, Mark Hopkins, Cecilia Long, John Blundell, Graham Finlayson
PURPOSE: Evidence suggests that homeostatic satiety signalling is enhanced with higher levels of physical activity (PA), with active individuals demonstrating an improved ability to compensate for previous energy intake (EI). However, prior studies lacked objective assessment of both PA level and EI. This study examined the effect of objectively-measured PA level on homeostatic (energy compensation) and hedonic (liking and wanting) responses to high-energy (HEP), low-energy (LEP) and control preloads...
July 7, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28682695/a-multicomponent-schoolyard-intervention-targeting-children-s-recess-physical-activity-and-sedentary-behavior-effects-after-one-year
#12
Dave H H Van Kann, SanneI de Vries, Jasper Schipperijn, Nanne K de Vries, Maria W J Jansen, Stef P J Kremers
Background Aim of the study was to test the 12-month effects of a multicomponent physical activity (PA) intervention at schoolyards on morning recess PA levels of 6(th) and 7(th) grade children in primary schools, using accelerometry and additional GPS data. Methods A quasi-experimental study design was used with 20 paired intervention and control schools. GPS confirmatory analyses were applied to validate attendance at schoolyards during recess. Accelerometer data from 376 children from 7 pairs of schools were included in the final analyses...
July 6, 2017: Journal of Physical Activity & Health
https://www.readbyqxmd.com/read/28678906/assessment-of-the-effectiveness-of-physical-activity-interventions-in-the-brazilian-unified-health-system
#13
Evelyn Helena Corgosinho Ribeiro, Leandro Martin Totaro Garcia, Emanuel Péricles Salvador, Evelyn Fabiana Costa, Douglas Roque Andrade, Maria do Rosario Dias de Oliveira Latorre, Alex Antonio Florindo
OBJECTIVE: To assess the effect of interventions on the levels of physical activity of healthy adults, users of the Brazilian Unified Health System and attended by the Family Health Strategy. METHODS: Non-randomized experimental study with 157 adults allocated in three groups: 1) physical exercise classes (n = 54), 2) health education (n = 54), 3) control (n = 49). The study lasted for18 months, with 12 months of interventions and six months of follow-up after intervention...
June 26, 2017: Revista de Saúde Pública
https://www.readbyqxmd.com/read/28674841/a-novel-smartphone-accelerometer-application-for-low-intensity-activity-and-energy-expenditure-estimations-in-overweight-and-obese-adults
#14
Sylvie Rousset, Romain Guidoux, Ludivine Paris, Nicolas Farigon, Magalie Miolanne, Clément Lahaye, Martine Duclos, Yves Boirie, Damien Saboul
Physical inactivity and sedentary behaviors are on the rise worldwide and contribute to the current overweight and obesity scourge. The loss of healthy life style benchmarks and the lack of the need to move make it necessary to provide feedback about physical and sedentary activities in order to promote active ways of life. The aim of this study was to develop a specific function adapted to overweight and obese people to identify four physical activity (PA) categories and to estimate the associated total energy expenditure (TEE)...
August 2017: Journal of Medical Systems
https://www.readbyqxmd.com/read/28673328/effect-of-a-6-month-pedometer-based-walking-intervention-on-functional-capacity-in-patients-with-chronic-heart-failure-with-reduced-hfref-and-with-preserved-hfpef-ejection-fraction-study-protocol-for-two-multicenter-randomized-controlled-trials
#15
Tomas Vetrovsky, Michal Siranec, Jiri Parenica, Martin Griva, Jiri Stastny, Jan Precek, Radek Pelouch, Vaclav Bunc, Ales Linhart, Jan Belohlavek
BACKGROUND: Regular physical activity is recommended for patients with chronic heart failure to improve their functional capacity, and walking is a popular, effective, and safe form of physical activity. Pedometers have shown potential to increase the amount of walking across a range of chronic diseases, but it is unknown whether a pedometer-based intervention improves functional capacity and neurohumoral modulation in heart failure patients. METHODS: Two multicenter randomized controlled trials will be conducted in parallel: one in patients with chronic heart failure with reduced ejection fraction (HFrEF), the other in patients with chronic heart failure with preserved ejection fraction (HFpEF)...
July 3, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28671872/camera-based-assessment-of-arterial-stiffness-and-wave-reflection-parameters-from-neck-micro-motion
#16
Andreia Vieira Moço, Luis Albert Zavala Mondragon, Wenjin Wang, Sander Stuijk, Gerard de Haan
The feasibility of camera-based extraction of the carotid distension waveforms offers the prospect of a user-friendly alternative to Laser Doppler Velocimetry (LDV) or accelerometry-based systems. Upon supplementary calibration of vessel wall displacement to arterial pressure, our system may also be an appealing alternative to applanation tonometry for extracting cardiac-related features from the central pulse pressure waveform. This paper describes the application of camera-based micro-motion imaging to extract health-related features from the contour of the carotid displacement waveform...
July 3, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/28668251/bicycle-trains-cycling-and-physical-activity-a-pilot-cluster-rct
#17
Jason A Mendoza, Wren Haaland, Maya Jacobs, Mark Abbey-Lambertz, Josh Miller, Deb Salls, Winifred Todd, Rachel Madding, Katherine Ellis, Jacqueline Kerr
INTRODUCTION: Increasing children's cycling to school and physical activity are national health goals. The objective was to conduct an RCT of a bicycle train program to assess impact on students' school travel mode and moderate-to-vigorous physical activity (MVPA). STUDY DESIGN: Pilot cluster RCT with randomization at the school level and N=54 participants. SETTING/PARTICIPANTS: Fourth-fifth graders from four public schools serving low-income families in Seattle, WA in 2014 with analyses in 2015-2016...
June 23, 2017: American Journal of Preventive Medicine
https://www.readbyqxmd.com/read/28663381/a-study-of-clinical-and-physiological-relations-of-daily-physical-activity-in-precapillary-pulmonary-hypertension
#18
Marios Panagiotou, Martin Kevin Johnson, Zafeiris Louvaris, Julien Steven Baker, Alistair Colin Church, Andrew J Peacock, Ioannis Vogiatzis
Daily physical activity is reduced in precapillary pulmonary hypertension (PH) but the underlying mechanisms are inadequately explored. We sought to investigate clinical and physiological relations of daily physical activity and profile differences between less and more active patients with precapillary PH. A prospective, cross-sectional study of 20 patients with precapillary PH who undertook a) a comprehensive clinical assessment, b) a preliminary treadmill test, c) 7-day monitoring of daily walking intensity with triaxial accelerometry and d) a personalized treadmill test corresponding to the individual patient mean daily walking intensity with real-time physiological measurements...
June 29, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28655049/video-game-rehabilitation-of-velopharyngeal-dysfunction-a-case-series
#19
Gabriel J Cler, Talia Mittelman, Maia N Braden, Geralyn Harvey Woodnorth, Cara E Stepp
Purpose: Video games provide a promising platform for rehabilitation of speech disorders. Although video games have been used to train speech perception in foreign language learners and have been proposed for aural rehabilitation, their use in speech therapy has been limited thus far. We present feasibility results from at-home use in a case series of children with velopharyngeal dysfunction (VPD) using an interactive video game that provided real-time biofeedback to facilitate appropriate nasalization...
June 22, 2017: Journal of Speech, Language, and Hearing Research: JSLHR
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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