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https://www.readbyqxmd.com/read/28545123/predictability-of-arousal-in-mouse-slow-wave-sleep-by-accelerometer-data
#1
Gustavo Zampier Dos Santos Lima, Sergio Roberto Lopes, Thiago Lima Prado, Bruno Lobao-Soares, George C do Nascimento, John Fontenele-Araujo, Gilberto Corso
Arousals can be roughly characterized by punctual intrusions of wakefulness into sleep. In a standard perspective, using human electroencephalography (EEG) data, arousals are associated to slow-wave rhythms and K-complex brain activity. The physiological mechanisms that give rise to arousals during sleep are not yet fully understood. Moreover, subtle body movement patterns, which may characterize arousals both in human and in animals, are usually not detectable by eye perception and are not in general present in sleep studies...
2017: PloS One
https://www.readbyqxmd.com/read/28544991/associations-of-neighborhood-social-environment-attributes-and-physical-activity-among-9-11-year-old-children-from-12-countries
#2
Samaah M Sullivan, Stephanie T Broyles, Tiago V Barreira, Jean-Philippe Chaput, Mikael Fogelholm, Gang Hu, Rebecca Kuriyan, Anura Kurpad, Estelle V Lambert, Carol Maher, Jose Maia, Victor Matsudo, Tim Olds, Vincent Onywera, Olga L Sarmiento, Martyn Standage, Mark S Tremblay, Catrine Tudor-Locke, Pei Zhao, Peter T Katzmarzyk
We investigated whether associations of neighborhood social environment attributes and physical activity differed among 12 countries and levels of economic development using World Bank classification (low/lower-middle-, upper-middle- and high- income countries) among 9-11 year old children (N=6161) from the International Study of Childhood Obesity, Lifestyle, and the Environment (ISCOLE). Collective efficacy and perceived crime were obtained via parental/guardian report. Moderate-to-vigorous physical activity (MVPA) was assessed with waist-worn Actigraph accelerometers...
May 22, 2017: Health & Place
https://www.readbyqxmd.com/read/28544804/longitudinal-patterns-in-objective-physical-activity-and-sedentary-time-in-a-multi-ethnic-sample-of-children-from-the-uk
#3
L Smith, D Aggio, M Hamer
BACKGROUND: Children of South Asian decent born in the UK display lower levels of physical activity than British Caucasians although no longitudinal data are available. OBJECTIVES: We aimed to investigate change in activity levels over 1 year in a diverse ethnic sample of children residing in London, UK. METHODS: Children were categorized into ethnic groups (Caucasian/mixed, Black, South Asian). At baseline and 1-year follow-up, children's objective physical activity was monitored (Actigraph accelerometer) for at least 1 day...
May 22, 2017: Pediatric Obesity
https://www.readbyqxmd.com/read/28541813/video-analysis-verification-of-head-impact-events-measured-by-wearable-sensors
#4
Nelson Cortes, Andrew E Lincoln, Gregory D Myer, Lisa Hepburn, Michael Higgins, Margot Putukian, Shane V Caswell
BACKGROUND: Wearable sensors are increasingly used to quantify the frequency and magnitude of head impact events in multiple sports. There is a paucity of evidence that verifies head impact events recorded by wearable sensors. PURPOSE: To utilize video analysis to verify head impact events recorded by wearable sensors and describe the respective frequency and magnitude. STUDY DESIGN: Cohort study (diagnosis); Level of evidence, 2. METHODS: Thirty male (mean age, 16...
May 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28541087/childhood-cognitive-ability-and-physical-activity-in-young-adulthood
#5
Satu M Kumpulainen, Kati Heinonen, Anu-Katriina Pesonen, Minna K Salonen, Sture Andersson, Aulikki Lano, Dieter Wolke, Eero Kajantie, Johan G Eriksson, Katri Raikkonen
OBJECTIVE: Childhood cognitive ability is associated with lifestyle in adulthood, including self-reported physical activity (PA). We examined whether childhood cognitive ability is associated with objectively measured PA and sedentary time (ST) in young adulthood. METHOD: Participants of the Arvo Ylppö Longitudinal Study (n = 500) underwent tests of general reasoning, visuomotor integration, verbal competence, and language comprehension at the age of 56 months yielding a general intelligence factor score; at the age of 25 years they wore omnidirectional accelerometers for 9 days (range = 4-10 days) measuring overall daily PA (counts per minute, cpm), ST, and light and moderate-to-vigorous PA (MVPA) (minutes), and completed a questionnaire on occupational, commuting, leisure-time conditioning and nonconditioning PA...
June 2017: Health Psychology: Official Journal of the Division of Health Psychology, American Psychological Association
https://www.readbyqxmd.com/read/28539695/physical-activity-levels-of-physiotherapists-across-practice-settings-a-cross-sectional-comparison-using-self-report-questionnaire-and-accelerometer-measures
#6
Sarah E Neil-Sztramko, Armin Ghayyur, Jeremy Edwards, Kristin L Campbell
Purpose: This article describes the physical activity of physiotherapists in British Columbia and examines differences across practice settings using self-report questionnaire and accelerometer-derived measures. Methods: Public and private practice physiotherapists aged 18-65 years were recruited through employee email lists and word of mouth to this cross-sectional study. Participants (n=98) completed the International Physical Activity Questionnaire-Long Form (IPAQ-L) online to quantify self-reported physical activity across various domains (occupational, leisure time, domestic, and transportation)...
2017: Physiotherapy Canada. Physiothérapie Canada
https://www.readbyqxmd.com/read/28538843/-measurement-of-physical-activity-by-triaxial-accelerometers-n-schoolchildren-from-three-peruvian-cities
#7
Katherine Alvis-Chirinos, Lucio Huamán-Espino, Jenny Pillaca, Juan Pablo Aparco
Objectives.: To determine the proportion of primary school students who fulfill the World Health Organization (WHO)recommendations on physical activity and the factors associated with less time of moderate-intense physical activity in urban areas of three cities in Peru. Materials and methods.: Cross-sectional study with a random selection of schoolchildren aged 6 to 13 from public educational institutions in urban areas of Chiclayo, Huaraz and Tarapoto. In order to measure the time and intensity of physical activity, schoolchildren were given an accelerometer for a week...
January 2017: Revista Peruana de Medicina Experimental y Salud Pública
https://www.readbyqxmd.com/read/28538261/physical-activity-and-sleep-quality-in-breast-cancer-survivors-a-randomized-trial
#8
Laura Q Rogers, Kerry S Courneya, Robert A Oster, Philip M Anton, Randall S Robbs, Andres Forero, Edward McAuley
PURPOSE: Data from large randomized controlled trials confirming sleep quality improvements with aerobic physical activity have heretofore been lacking for post-primary treatment breast cancer survivors. Our primary purpose for this report was to determine the effects of a physical activity behavior change intervention, previously reported to significantly increase physical activity behavior, on sleep quality in post-primary treatment breast cancer survivors. METHODS: Post-primary treatment breast cancer survivors (n=222) were randomized to a 3-month physical activity behavior change intervention (BEAT Cancer) or usual care...
May 20, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28538260/longitudinal-physical-activity-body-composition-and-physical-fitness-in-preschoolers
#9
Marja H Leppänen, Pontus Henriksson, Christine Delisle Nyström, Hanna Henriksson, Francisco B Ortega, Jeremy Pomeroy, Jonatan R Ruiz, Cristina Cadenas-Sanchez, Marie Löf
PURPOSE: To investigate longitudinal associations of objectively-measured physical activity (PA) and sedentary behavior (SB) with body composition and physical fitness at a 12-month follow-up in healthy Swedish 4-year-old children. METHODS: The data from the population-based MINISTOP trial were collected between 2014-2016, and this study included the 138 children who were in the control group. PA and SB were assessed using the wrist-worn ActiGraph (wGT3x-BT) accelerometer during seven 24-hour periods, and subsequently, defined as SB, light-intensity PA (LPA), moderate-intensity PA (MPA), vigorous-intensity PA (VPA), and moderate-to-vigorous PA (MVPA)...
May 20, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28537001/study-design-of-vesuto-%C3%A2-efficacy-of-tiotropium-olodaterol-on-lung-hyperinflation-exercise-capacity-and-physical-activity-in-japanese-patients-with-chronic-obstructive-pulmonary-disease
#10
Masakazu Ichinose, Yoshiaki Minakata, Takashi Motegi, Jun Ueki, Tetsuo Seki, Tatsuhiko Anzai, Ayako Takizawa, Lars Grönke, Kazuto Hirata
INTRODUCTION: The superiority of tiotropium/olodaterol is demonstrated in improvement of lung function, dyspnea, lung hyperinflation, and quality of life compared with either monotherapy in patients with chronic obstructive pulmonary disease (COPD). Japanese Respiratory Society Guidelines for COPD management include improvement of exercise tolerance and daily physical activity as the treatment goals; however, there is limited evidence in Japanese patients with COPD. METHODS: A protocol is developed for the VESUTO(®) study that investigates the efficacy of tiotropium/olodaterol fixed-dose combination (FDC) compared with tiotropium alone on inspiratory capacity (IC, volume from functional residual capacity to total lung capacity), exercise capacity, and daily physical activity in Japanese patients with COPD...
May 23, 2017: Advances in Therapy
https://www.readbyqxmd.com/read/28536697/psychosocial-and-environmental-correlates-of-sedentary-behaviors-in-spanish-children
#11
S Aznar, M T Lara, A Queralt, J Molina-Garcia
Purpose. To evaluate children's psychosocial and environmental factors associated with sedentary behavior (SB). Method. The study involved a total of 420 children (mean 9.2 years; 52.9% girls) from the community of Madrid, Spain. SB and physical activity (PA) were objectively measured using accelerometers. TV viewing and potential correlates were assessed by questionnaire. Mixed-model regression analysis, adjusted for clustering within school locations, evaluated the relation of each independent variable with SBs...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28535432/water-depth-effects-on-impact-loading-kinematic-and-physiological-variables-during-water-treadmill-running
#12
Paul W Macdermid, Josh Wharton, Carina Schill, Philip W Fink
PURPOSE: The purpose of this study was to compare impact loading, kinematic and physiological responses to three different immersion depths (mid-shin, mid-thigh, and xiphoid process) while running at the same speed on a water based treadmill. METHODS: Participants (N=8) ran on a water treadmill at three depths for 3min. Tri-axial accelerometers were used to identify running dynamics plus measures associated with impact loading rates, while heart rate data were logged to indicate physiological demand...
May 17, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28534801/physical-activity-recognition-using-posterior-adapted-class-based-fusion-of-multi-accelerometers-data
#13
Alok Chowdhury, Dian Tjondronegoro, Vinod Chandran, Stewart Trost
This paper proposes the use of posterior-adapted class-based weighted decision fusion to effectively combine multiple accelerometers data for improving physical activity recognition. The cutting-edge performance of this method is benchmarked against model-based weighted fusion and class-based weighted fusion without posterior adaptation, based on two publicly available datasets, namely PAMAP2 and MHEALTH. Experimental results show that: (a) posterior-adapted class-based weighted fusion outperformed model-based and class-based weighted fusion; (b) decision fusion with two accelerometers showed statistically significant improvement in average performance compared to the use of a single accelerometer;...
May 17, 2017: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/28534797/transition-icons-for-time-series-visualization-and-exploratory-analysis
#14
Paul Nickerson, Raheleh Baharloo, Amal A Wanigatunga, Todd D Manini, Patrick J Tighe, Parisa Rashidi
The modern healthcare landscape has seen the rapid emergence of techniques and devices which temporally monitor and record physiological signals. The prevalence of time series data within the healthcare field necessitates the development of methods which can analyze the data in order to draw meaningful conclusions. Time series behavior is notoriously difficult to intuitively understand due to its intrinsic high-dimensionality, which is compounded in the case of analyzing groups of time series collected from different patients...
May 16, 2017: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/28533603/comparison-of-accelerometer-based-and-treadmill-based-analysis-systems-for-measuring-gait-parameters-in-healthy-adults
#15
Seung-Yeop Lim, Wan-Hee Lee
[Purpose] This study aimed to determine the correlation between accelerometer-based and treadmill-based analysis systems for measuring gait parameters during comfortable walking in healthy young adults. [Subjects and Methods] Twenty-three healthy adults participated in this study. Gait parameters were measured with simultaneous use of accelerometer-based and treadmill-based gait analysis systems, while participants walked for 30 s. [Results] There was a highly-significant correlation between the two systems with respect to cadence and velocity...
April 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28533553/24%C3%A2-h-accelerometry-in-epidemiological-studies-automated-detection-of-non-wear-time-in-comparison-to-diary-information
#16
Lina Jaeschke, Agnes Luzak, Astrid Steinbrecher, Stephanie Jeran, Maike Ferland, Birgit Linkohr, Holger Schulz, Tobias Pischon
Estimation of physical activity using 24 h-accelerometry requires detection of accelerometer non-wear time (NWT). It is common practice to define NWT as periods >60 minutes of consecutive zero-accelerations, but this algorithm was originally developed for waking hours only and its applicability to 24 h-accelerometry is unclear. We investigated sensitivity and specificity of different algorithms to detect NWT in 24 h-accelerometry compared to diary in 47 ActivE and 559 KORA participants. NWT was determined with algorithms >60, >90, >120, >150, or >180 minutes of consecutive zero-counts...
May 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28532318/potential-moderators-of-day-to-day-variability-in-children-s-physical-activity-patterns
#17
Nicola D Ridgers, Lisa M Barnett, David R Lubans, Anna Timperio, Ester Cerin, Jo Salmon
Little is known about whether physical activity compensation occurs and, if so, what are potential moderators of such responses. This study examined whether children's physical activity, sedentary time and energy expenditure on one day was associated with these behaviours the following day, and what factors may moderate observed associations. One hundred and twenty-seven children (8-11 years) wore an ActiGraph accelerometer for eight days. Time spent in sedentary time and physical activity was obtained. Daily energy expenditure was also assessed using a SenseWear Armband (n=98)...
May 22, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28530126/association-of-objectively-measured-sedentary-behaviour-and-physical-activity-with-cardiovascular-disease-risk
#18
Ville Vasankari, Pauliina Husu, Henri Vähä-Ypyä, Jaana Suni, Kari Tokola, Jari Halonen, Juha Hartikainen, Harri Sievänen, Tommi Vasankari
Background We evaluated the association of accelerometer-based sedentary behaviour and physical activity with the risk of cardiovascular disease. Design The design of this study used a population-based, cross-sectional sample. Methods A subsample of participants in the Health 2011 Study in Finland used the tri-axial accelerometer (≥4 days, >10 h/day, n = 1398). Sedentary behaviour (sitting, lying) and standing still in six-second epochs were recognised from raw acceleration data based on intensity and device orientation...
January 1, 2017: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/28529971/a-comparative-effectiveness-trial-of-three-walking-self-monitoring-strategies
#19
Caroline R Richardson, David E Goodrich, Angela R Larkin, David Ronis, Robert G Holleman, Laura J Damschroder, Julie C Lowery
PURPOSE: Walking programs improve health outcomes in adults at risk for cardiovascular disease and self-monitoring strategies can improve adherence to such programs. The objective of this study was to determine if a six-month internet-based walking program using web-enhanced pedometers results in more weight loss than walking programs based on time or simple pedometer-step count goals in adults with or at risk for cardiovascular disease (CVD). METHODS: This was a multi-site, randomized controlled trial of 255 male Veterans who were ambulatory, insufficiently active, BMI ≥ 28, and who reported 1 ≥ CVD risk factors...
November 2016: Translational Journal of the American College of Sports Medicine
https://www.readbyqxmd.com/read/28529332/adiposity-and-grip-strength-as-long-term-predictors-of-objectively-measured-physical-activity-in-93-015-adults-the-uk-biobank-study
#20
Y Kim, T White, K Wijndaele, S J Sharp, N J Wareham, S Brage
BACKGROUND/OBJECTIVES: Fatness and fitness are associated with physical activity (PA) but less is known about the prospective associations of adiposity and muscle strength with PA. This study aimed to determine longitudinal associations of body mass index (BMI), waist circumference (WC) and grip strength (GS) with objectively measured PA. SUBJECTS/METHODS: Data are from the UK Biobank study. At baseline (2006-2010), BMI, WC and GS were objectively measured. At follow-up (2013-2015), a sub-sample of 93 015 participants (52 161 women) wore a tri-axial accelerometer on the dominant wrist for 7 days...
May 22, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
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