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Accelerometry

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https://www.readbyqxmd.com/read/29786659/deep-learning-to-predict-falls-in-older-adults-based-on-daily-life-trunk-accelerometry
#1
REVIEW
Ahmed Nait Aicha, Gwenn Englebienne, Kimberley S van Schooten, Mirjam Pijnappels, Ben Kröse
Early detection of high fall risk is an essential component of fall prevention in older adults. Wearable sensors can provide valuable insight into daily-life activities; biomechanical features extracted from such inertial data have been shown to be of added value for the assessment of fall risk. Body-worn sensors such as accelerometers can provide valuable insight into fall risk. Currently, biomechanical features derived from accelerometer data are used for the assessment of fall risk. Here, we studied whether deep learning methods from machine learning are suited to automatically derive features from raw accelerometer data that assess fall risk...
May 22, 2018: Sensors
https://www.readbyqxmd.com/read/29785009/physical-activity-sleep-and-fatigue-in-community-dwelling-stroke-survivors
#2
Anthony I Shepherd, Richard Pulsford, Leon Poltawski, Anne Forster, Rod S Taylor, Anne Spencer, Laura Hollands, Martin James, Rhoda Allison, Meriel Norris, Raff Calitri, Sarah G Dean
Stroke can lead to physiological and psychological impairments and impact individuals' physical activity (PA), fatigue and sleep patterns. We analysed wrist-worn accelerometry data and the Fatigue Assessment Scale from 41 stroke survivors following a physical rehabilitation programme, to examine relationships between PA levels, fatigue and sleep. Validated acceleration thresholds were used to quantify time spent in each PA intensity/sleep category. Stroke survivors performed less moderate to vigorous PA (MVPA) in 10 minute bouts than the National Stroke guidelines recommend...
May 21, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29777236/does-cardiorespiratory-fitness-moderate-the-prospective-association-between-physical-activity-and-cardiometabolic-risk-factors-in-children
#3
Turid Skrede, Eivind Aadland, Lars Bo Andersen, Mette Stavnsbo, Sigmund Alfred Anderssen, Geir Kåre Resaland, Ulf Ekelund
BACKGROUND/OBJECTIVES: Physical activity (PA) and cardiorespiratory fitness (CRF) are independently associated with reduced cardiometabolic risk in children, and may affect risk through different pathways. This study aims to examine if CRF moderate the prospective association between PA, sedentary time, and cardiometabolic outcomes in 10-year-old children. SUBJECTS/METHODS: In total, 718 children of 1129 (drop out n = 7) had valid measures of PA (accelerometry), CRF (the Andersen running test), and a cardiometabolic risk profile measured at baseline and follow-up 7 months later...
May 17, 2018: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/29776774/association-of-disrupted-circadian-rhythmicity-with-mood-disorders-subjective-wellbeing-and-cognitive-function-a-cross-sectional-study-of-91-105-participants-from-the-uk-biobank
#4
Laura M Lyall, Cathy A Wyse, Nicholas Graham, Amy Ferguson, Donald M Lyall, Breda Cullen, Carlos A Celis Morales, Stephany M Biello, Daniel Mackay, Joey Ward, Rona J Strawbridge, Jason M R Gill, Mark E S Bailey, Jill P Pell, Daniel J Smith
BACKGROUND: Disruption of sleep and circadian rhythmicity is a core feature of mood disorders and might be associated with increased susceptibility to such disorders. Previous studies in this area have used subjective reports of activity and sleep patterns, but the availability of accelerometer-based data from UK Biobank participants permits the derivation and analysis of new, objectively ascertained circadian rhythmicity parameters. We examined associations between objectively assessed circadian rhythmicity and mental health and wellbeing phenotypes, including lifetime history of mood disorder...
May 15, 2018: Lancet Psychiatry
https://www.readbyqxmd.com/read/29774241/active-learning-increases-children-s-physical-activity-across-demographic-subgroups
#5
John B Bartholomew, Esbelle M Jowers, Gregory Roberts, Anna-Mária Fall, Vanessa L Errisuriz, Sharon Vaughn
Purpose: Given the need to find more opportunities for physical activity within the elementary school day, this study was designed to asses the impact of I-CAN!, active lessons on: 1) student physical activity (PA) outcomes via accelerometry; and 2) socioeconomic status (SES), race, sex, body mass index (BMI), or fitness as moderators of this impact. Methods: Participants were 2,493 fourth grade students (45.9% male, 45.8% white, 21.7% low SES) from 28 central Texas elementary schools randomly assigned to intervention (n=19) or control (n=9)...
January 2018: Translational Journal of the American College of Sports Medicine
https://www.readbyqxmd.com/read/29771367/effectiveness-of-and-user-experience-with-web-based-interventions-in-increasing-physical-activity-levels-in-people-with-multiple-sclerosis-a-systematic-review
#6
Rachel Dennett, Hilary Gunn, Jennifer A Freeman
Background: Supporting people with multiple sclerosis (MS) to achieve and maintain recommended levels of physical activity is important but challenging. Web-based interventions are increasingly being used to deliver targeted exercise programs and promote physical activity. Purpose: The purpose of this study was to systematically review current evidence regarding the effectiveness and user experience of web-based interventions in increasing physical activity in people with MS...
May 15, 2018: Physical Therapy
https://www.readbyqxmd.com/read/29766835/are-consumption-of-dairy-products-and-physical-activity-independently-related-to-bone-mineral-density-of-6-year-old-children-longitudinal-and-cross-sectional-analyses-in-a-birth-cohort-from-brazil
#7
Renata M Bielemann, Juliana Dos S Vaz, Marlos R Domingues, Alicia Matijasevich, Iná S Santos, Ulf Ekelund, Bernardo L Horta
OBJECTIVE: To evaluate cross-sectional and longitudinal associations of consumption of dairy products and physical activity (PA) with bone mineral density (BMD). DESIGN: Cohort study with children from the 2004 Pelotas (Brazil) Birth Cohort. SETTING: Pelotas, a medium-sized Brazilian city. SUBJECTS: The study started in 2004 and mothers/children were interviewed/measured periodically from birth to age 6 years. PA was measured by maternal proxy at 4 and 6 years and by accelerometry at 6 years...
May 16, 2018: Public Health Nutrition
https://www.readbyqxmd.com/read/29766773/effects-of-a-structured-physical-activity-program-on-habitual-physical-activity-and-body-composition-in-patients-with-chronic-kidney-disease-and-in-kidney-transplant-recipients
#8
Anna Masajtis-Zagajewska, Katarzyna Muras, Michał Nowicki
OBJECTIVES: In this study, we compared the effects of an individualized physical activity program on lifestyle, metabolic profile, body composition, and quality of life in kidney transplant recipients and patients with chronic kidney disease. MATERIALS AND METHODS: Our study included 24 kidney transplant recipients and 15 patients with chronic kidney disease at stage 3/4. Body composition (impedance spectroscopy) and habitual physical activity (accelerometry) assessed at baseline were used to prepare the individualized physical activity program...
May 16, 2018: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/29764890/marathon-kids-uk-study-design-and-protocol-for-a-mixed-methods-evaluation-of-a-school-based-running-programme
#9
Anna E Chalkley, Ash C Routen, Jo P Harris, Lorraine A Cale, Trish Gorely, Lauren B Sherar
INTRODUCTION: Schools are promising settings for physical activity promotion; however, they are complex and adaptive systems that can influence the quality of programme implementation. This paper presents an evaluation of a school-based running programme (Marathon Kids). The aims of this study are (1) to identify the processes by which schools implement the programme, (2) identify and explain the contextual factors affecting implementation and explications of effectiveness and (3) examine the relationship between the level of implementation and perceived outcomes...
May 14, 2018: BMJ Open
https://www.readbyqxmd.com/read/29762252/high-intensity-interval-or-continuous-moderate-exercise-a-24-week-pilot-trial
#10
Sean R Locke, Jessica E Bourne, Mark R Beauchamp, Jonathan P Little, Julianne Barry, Joel Singer, Mary E Jung
PURPOSE: High-intensity interval training (HIIT) may lead to superior cardiometabolic improvements when compared to moderate-intensity continuous training (MICT). However, adherence to HIIT requires examination. The purpose of this pilot study was to examine moderate-to-vigorous physical activity (MVPA) adherence 24 weeks following a brief counselling intervention combined with either HIIT or MICT. METHODS: Individuals at high risk of type 2 diabetes (T2D) were randomized to HIIT (n = 15) or MICT (n = 17) and completed 10 exercise sessions accompanied by a brief 10-minute counselling intervention over a 2-week period...
May 14, 2018: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29754576/objectively-assessed-moderate-to-vigorous-physical-activity-levels-among-primary-school-children-in-norway-the-health-oriented-pedagogical-project-hopp
#11
Wei Hai Deng, Per Morten Fredriksen
AIMS: The objective was to investigate moderate-to-vigorous physical activity levels (MVPA) of primary school children at baseline of the Health Oriented Pedagogical Project (HOPP), Norway. METHODS: Data on 2123 children aged 6-12 years were included for analysis (75% participation rate). Average minutes per day in MVPA was objectively measured using accelerometry based on seven-day averages. The sample was analysed for age-, sex-, socioeconomic-, and season-related patterns...
May 2018: Scandinavian Journal of Public Health
https://www.readbyqxmd.com/read/29744652/association-of-activity-status-and-patterns-with-salivary-cortisol-the-population-based-colaus-study
#12
Cédric Gubelmann, Christine Kuehner, Peter Vollenweider, Pedro Marques-Vidal
PURPOSE: Physical activity (PA) has been shown to influence salivary cortisol concentrations in small studies conducted among athletes. We assessed the association of activity status and patterns with salivary cortisol in the general population. METHODS: Cross-sectional study including 1948 adults (54.9% women, 45-86 years). PA and sedentary behaviour (SB) were measured for 14 days by accelerometry. Low PA and high SB status were defined, respectively, as the lowest and highest tertile of each behaviour...
May 9, 2018: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29740015/effects-of-5-aminolevulinic-acid-supplementation-on-home-based-walking-training-achievement-in-middle-aged-depressive-women-randomized-double-blind-crossover-pilot-study
#13
Hiroshi Suzuki, Shizue Masuki, Akiyo Morikawa, Yu Ogawa, Yoshi-Ichiro Kamijo, Kiwamu Takahashi, Motowo Nakajima, Hiroshi Nose
Depressive patients often experience difficulty in performing exercise due to physical and psychological barriers. We examined the effects of 5-aminolevulinic acid (ALA) with sodium ferrous citrate (SFC) supplementation during home-based walking training in middle-aged depressive women. Nine outpatients [53 ± 8 (SD) yr] with major depressive disorder participated in the pilot study with randomized, placebo-controlled, double-blind crossover design. They underwent two trials for 7 days, each performing interval walking training (IWT) with ALA + SFC (ALA + SFC) or placebo supplement intake (PLC) intermittently with >a 10-day washout period...
May 8, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29734698/disparate-habitual-physical-activity-and-dietary-intake-profiles-of-elderly-men-with-low-and-elevated-systemic-inflammation
#14
Dimitrios Draganidis, Athanasios Z Jamurtas, Theodoros Stampoulis, Vasiliki C Laschou, Chariklia K Deli, Kalliopi Georgakouli, Konstantinos Papanikolaou, Athanasios Chatzinikolaou, Maria Michalopoulou, Constantinos Papadopoulos, Panagiotis Tsimeas, Niki Chondrogianni, Yiannis Koutedakis, Leonidas G Karagounis, Ioannis G Fatouros
The development of chronic, low-grade systemic inflammation in the elderly (inflammaging) has been associated with increased incidence of chronic diseases, geriatric syndromes, and functional impairments. The aim of this study was to examine differences in habitual physical activity (PA), dietary intake patterns, and musculoskeletal performance among community-dwelling elderly men with low and elevated systemic inflammation. Nonsarcopenic older men free of chronic diseases were grouped as ‘low’ (LSI: n = 17; 68...
May 4, 2018: Nutrients
https://www.readbyqxmd.com/read/29734685/changes-in-weight-sedentary-behaviour-and-physical-activity-during-the-school-year-and-summer-vacation
#15
Chiaki Tanaka, John J Reilly, Maki Tanaka, Shigeho Tanaka
Background : To examine bidirectional associations between body weight and objectively assessed sedentary behaviour (SB) and physical activity (PA) during the school year and summer vacation. Methods : Participants were 209 Japanese boys and girls (9.0 ± 1.8 years at baseline). SB and PA were measured using triaxial accelerometry that discriminated between ambulatory and non-ambulatory PA, screen time measured by questionnaire during the school-term was evaluated in May and the summer vacation, and relative body weight measured in May and just after the end of summer vacation...
May 4, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29717272/total-volume-versus-bouts-prospective-relationship-of-physical-activity-and-sedentary-time-with-cardiometabolic-risk-in-children
#16
Mai Chinapaw, Heidi Klakk, Niels Christian Møller, Lars Bo Andersen, Teatske Altenburg, Niels Wedderkopp
BACKGROUND/OBJECTIVES: Examine the prospective relationship of total volume versus bouts of sedentary behaviour (SB) and moderate-to-vigorous physical activity (MVPA) with cardiometabolic risk in children. In addition, the moderating effects of weight status and MVPA were explored. SUBJECTS/METHODS: Longitudinal study including 454 primary school children (mean age 10.3 years). Total volume and bouts (i.e. ≥10 min consecutive minutes) of MVPA and SB were assessed by accelerometry in Nov 2009/Jan 2010 (T1) and Aug/Oct 2010 (T2)...
May 1, 2018: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/29701884/retinal-vascular-diameters-in-relation-to-physical-activity-in-danish-children-the-champs-eye-study
#17
Kristian Lundberg, Jakob Tarp, Anders Højslet Vestergaard, Nina Jacobsen, Anne Suhr Thykjaer, Maria Sode Rønne, Anna Bugge, Ernst Goldschmidt, Tunde Peto, Niels Wedderkopp, Jakob Grauslund
Our objective was to determine associations between retinal vascular caliber and physical activity (PA) in a school-based child cohort. In a prospective study we created a childhood cumulative average PA-index using objectively measured PA (accelerometry) assessed at four periods between 2009 and 2015. Cumulative exposure to PA intensities was estimated. Cross-sectional examinations on biomarkers, anthropometry and ophthalmological data including retinal fundus photographs were performed in 2015. Semi-automated measurements of retinal vascular diameters were performed and summarized into central retinal arteriolar and venular equivalents (CRAE, CRVE)...
April 27, 2018: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29701486/can-an-automated-sleep-detection-algorithm-for-waist-worn-accelerometry-replace-sleep-logs
#18
Tiago V Barreira, Jessica G Redmond, Tom D Brutsaert, John M Schuna, Emily F Mire, Peter T Katzmarzyk, Catrine Tudor-Locke
The purpose of this study was to test whether estimates of bedtime, wake time, and sleep period time (SPT) were comparable between an automated algorithm (ALG) applied to waist-worn accelerometry data and a sleep log (LOG), in an adult sample. A total of 104 participants were asked to log evening bedtime and morning wake time and wear an ActiGraph GT3X+ accelerometer at their waist 24 h/days for 7 consecutive days. Mean difference (MD) and mean absolute difference (MAD) were computed. Pearson correlations and dependent sample t-tests were used to compare LOG-based and ALG-based sleep variables...
April 27, 2018: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/29694382/association-of-objectively-measured-physical-activity-and-sedentary-time-with-arterial-stiffness-in-women-with-systemic-lupus-erythematosus-with-mild-disease-activity
#19
Pablo Morillas-de-Laguno, José A Vargas-Hitos, Antonio Rosales-Castillo, Luis Manuel Sáez-Urán, Cristina Montalbán-Méndez, Blanca Gavilán-Carrera, Carmen Navarro-Mateos, Pedro Acosta-Manzano, Manuel Delgado-Fernández, José M Sabio, Norberto Ortego-Centeno, José L Callejas-Rubio, Alberto Soriano-Maldonado
OBJECTIVES: To examine the association of objectively measured physical activity (PA) intensity levels and sedentary time with arterial stiffness in women with systemic lupus erythematosus (SLE) with mild disease activity and to analyze whether participants meeting the international PA guidelines have lower arterial stiffness than those not meeting the PA guidelines. METHODS: The study comprised 47 women with SLE (average age 41.2 [standard deviation 13.9]) years, with clinical and treatment stability during the 6 months prior to the study...
2018: PloS One
https://www.readbyqxmd.com/read/29686901/reliability-and-construct-validity-of-the-sens-motion%C3%A2-activity-measurement-system-as-a-tool-to-detect-sedentary-behaviour-in-patients-with-knee-osteoarthritis
#20
Cecilie Bartholdy, Henrik Gudbergsen, Henning Bliddal, Morten Kjærgaard, Kasper Lundberg Lykkegaard, Marius Henriksen
Physical inactivity is important to address, and an objective way of measuring inactivity is by accelerometry. The objective of this study was to determine the reliability and construct validity of the SENS motion system to record physical activity and inactivity in patients with knee osteoarthritis. Participants with an age > 40 years and an average weekly pain above 0 on a numeric rating scale (0 = no pain, 10 = worst pain) were included. Participants had a total of two study visits and at each visit participants completed a standardized activity...
2018: Arthritis
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