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Accelerometry

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https://www.readbyqxmd.com/read/28350830/first-year-physical-activity-findings-from-turn-up-the-heat-healthy-eating-and-activity-time-in-summer-day-camps
#1
R Glenn Weaver, Keith Brazendale, Jessica L Chandler, Gabrielle M Turner-McGrievy, Justin B Moore, Jennifer L Huberty, Dianne S Ward, Michael W Beets
BACKGROUND: Summer day camps (SDCs) serve 14 million children yearly in the U.S. and aim to provide participating children with 60 minutes of moderate-to-vigorous physical activity (MVPA). This study evaluated an intervention designed to increase the percent of children meeting this MVPA guideline. DESIGN: Two-group, pre-post quasi-experimental. SETTING/PARTICIPANTS: Twenty SDCs serving 1,830 children aged 5-12 years were assigned to MVPA intervention (n = 10) or healthy eating attention control (n = 10)...
2017: PloS One
https://www.readbyqxmd.com/read/28346386/a-mixed-methods-examination-of-physical-activity-and-sedentary-time-in-overweight-and-obese-south-asian-men-living-in-the-united-kingdom
#2
Amir Emadian, Janice Thompson
South Asian men living in the UK have higher rates of central obesity and Type 2 Diabetes Mellitus (T2DM) compared with their white British counterparts. Physical activity (PA) and sedentary time (ST) are important risk factors for the development of T2DM. The purpose of this study was to objectively measure PA, ST, and to explore the factors influencing these behaviours in this high-risk population. A mixed-methods cross-sectional research design was employed, including the quantification of PA and ST using the self-report International Physical Activity Questionnaire (IPAQ)-long form and accelerometry in overweight and obese UK South Asian men (n = 54), followed by semi-structured interviews in a purposive sub-sample to explore the factors influencing PA and ST (n = 31)...
March 27, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28345788/horticultural-activity-predicts-later-localized-limb-status-in-a-contemporary-pre-industrial-population
#3
Jonathan Stieglitz, Benjamin C Trumble, Hillard Kaplan, Michael Gurven
OBJECTIVES: Modern humans may have gracile skeletons due to low physical activity levels and mechanical loading. Tests using pre-historic skeletons are limited by the inability to assess behavior directly, while modern industrialized societies possess few socio-ecological features typical of human evolutionary history. Among Tsimane forager-horticulturalists, we test whether greater activity levels and, thus, increased loading earlier in life are associated with greater later-life bone status and diminished age-related bone loss...
March 27, 2017: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/28343006/trouble-on-takeoff-crude-oil-on-feathers-reduces-escape-performance-of-shorebirds
#4
Ivan Maggini, Lisa V Kennedy, Kyle H Elliott, Karen M Dean, Robert MacCurdy, Alexander Macmillan, Chris A Pritsos, Christopher G Guglielmo
The ability to takeoff quickly and accelerate away from predators is crucial to bird survival. Crude oil can disrupt the fine structure and function of feathers, and here we tested for the first time how small amounts of oil on the trailing edges of the wings and tail of Western sandpipers (Calidris mauri) affected takeoff flight performance. In oiled birds, the distance travelled during the first 0.4s after takeoff was reduced by 29%, and takeoff angle was decreased by 10° compared to unoiled birds. Three-axis accelerometry indicated that oiled sandpipers produced less mechanical power output per wingbeat during the initial phase of flight...
March 23, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28338921/the-relationship-between-objectively-measured-walking-and-risk-of-pedestrian-motor-vehicle-collision
#5
D Alex Quistberg, Eric J Howard, Philip M Hurvitz, Anne V Moudon, Beth E Ebel, Frederick P Rivara, Brian E Saelens
Safe urban walking environments may improve health by encouraging physical activity, but the relationship between an individual's location and walking pattern and the risk of pedestrian-motor vehicle collision is unknown. We examined associations between individuals' walking bouts and walking risk, measured as mean exposure to the risk of pedestrian-vehicle collision. Walking bouts were ascertained through integrated accelerometry and global positioning system data and from individual travel-diary data obtained from adults in the Travel Assessment and Community Study (King County, Washington) in 2008-2009...
March 1, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28329086/obesity-history-and-daily-patterns-of-physical-activity-at-age-60-64-years-findings-from-the-mrc-national-survey-of-health-and-development
#6
Rachel Cooper, Lei Huang, Rebecca Hardy, Adina Crainiceanu, Tamara Harris, Jennifer A Schrack, Ciprian Crainiceanu, Diana Kuh
Background: The aim of this study was to investigate associations of current body mass index (BMI) and obesity history with daily patterns of physical activity. Methods: At age 60-64, participants from a British birth cohort study wore accelerometers for 5 days. Accelerometry counts were log-transformed and mean log-counts were used to derive a summary variable indicating total daily log-activity counts. Among those with complete data (n = 1,388) the associations of current BMI and age of first obesity were examined with: (a) total daily log-activity counts and (b) total log-activity counts in four segments of the day...
February 18, 2017: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/28329025/correction-measuring-physical-activity-with-hip-accelerometry-among-u-s-older-adults-how-many-days-are-enough
#7
Masha Kocherginsky, Megan Huisingh-Scheetz, William Dale, Diane S Lauderdale, Linda Waite
[This corrects the article DOI: 10.1371/journal.pone.0170082.].
2017: PloS One
https://www.readbyqxmd.com/read/28327174/randomised-controlled-feasibility-study-of-a-school-based-multi-level-intervention-to-increase-physical-activity-and-decrease-sedentary-behaviour-among-vocational-school-students
#8
Nelli Hankonen, Matti T J Heino, Sini-Tuuli Hynynen, Hanna Laine, Vera Araújo-Soares, Falko F Sniehotta, Tommi Vasankari, Reijo Sund, Ari Haukkala
BACKGROUND: No school-based physical activity (PA) interventions among older adolescents have demonstrated long-term effectiveness, and few of them so far have addressed sedentary behaviour (SB). Based on behavioural theories and evidence, we designed a multi-level intervention to increase PA and decrease SB among vocational school students. This study investigates feasibility and acceptability of two main intervention components and research procedures. We also examine uptake of behaviour change techniques (BCTs) by the participants...
March 21, 2017: International Journal of Behavioral Nutrition and Physical Activity
https://www.readbyqxmd.com/read/28323951/assessing-energy-requirements-in-women-with-polycystic-ovary-syndrome-a-comparison-against-doubly-labeled-water
#9
Nicholas T Broskey, Monica C Klempel, L Anne Gilmore, Elizabeth F Sutton, Abby D Altazan, Jeffrey H Burton, Eric Ravussin, Leanne M Redman
Context: Weight loss is prescribed to offset the deleterious consequences of polycystic ovary syndrome (PCOS), but a successful intervention requires an accurate assessment of energy requirements. Objective: Describe energy requirements in women with PCOS and evaluate common prediction equations compared to doubly-labeled water (DLW). Design: Cross-sectional study. Setting: Academic research center. Participants: Twenty-eight weight-stable women with PCOS completed a 14-day DLW study along with measures of body composition, resting metabolic rate, and physical activity assessment by accelerometry...
March 8, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28316908/exploring-childhood-obesity-prevention-among-diverse-ethnic-groups-in-schools-and-places-of-worship-recruitment-acceptability-and-feasibility-of-data-collection-and-intervention-components
#10
Maria Maynard, Graham Baker, Seeromanie Harding
Small-scale, detailed exploration of the recruitment, assessment, and evaluation processes of obesity intervention among minority ethnic children. The study took place in schools and places of worship during 2008-2010 in London, UK. Measures included 3-day food diaries, 24 h dietary recalls, the Youth Physical Activity Questionnaire, accelerometry, and diet and physical activity self-efficacy questionnaires. Potential intervention components were evaluated via observation, questionnaires, and focus group discussions...
June 2017: Preventive Medicine Reports
https://www.readbyqxmd.com/read/28316589/a-postural-tremor-highly-responsive-to-transcranial-cerebello-cerebral-dcs-in-arca3
#11
Florian Bodranghien, Nordeyn Oulad Ben Taib, Lionel Van Maldergem, Mario Manto
BACKGROUND AND OBJECTIVES: Cerebellar ataxias are disabling disorders that impact the quality of life of patients. In many cases, an effective treatment is missing. Despite the increasing knowledge on the pathogenesis of cerebellar disorders including genetic aspects, there is currently a gap in the therapeutical management of cerebellar deficits. Cerebellar ataxia associated with ANO10 mutation (ARCA3) presents a disabling cerebellar syndrome. The aim of this study is to report a patient with a marked postural tremor responding to transcranial cerebello-cerebral direct current stimulation (tCCDCS)...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28291744/consequences-of-short-interruptions-of-bouts-of-walking-on-estimates-of-compliance-to-physical-activity-guidelines
#12
Juliet Ann Harvey, Danny Rafferty, Sebastien Chastin
INTRODUCTION: Current guidelines on physical activity suggest that 30 mins of moderate intensity physical activity can be accumulated in continuous bouts of at least 10 mins. It has been shown by use of activity monitoring that it is difficult to achieve 10 mins of completely uninterrupted walking in the free-living urban environment where we have obstacles such as roads to cross. The aim of this study was to examine the effect of short interruptions in walking on the rate of oxygen uptake (ml·kg·min-1) to determine if walking with short interruptions can still be considered continuous...
March 14, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/28290761/comparison-between-wrist-worn-and-waist-worn-accelerometry
#13
Paul D Loprinzi, Brandee Smith
OBJECTIVE: To use the most recent ActiGraph model (GT9X) to compare counts per minute (CPM) estimates between wrist-worn and waist-worn attachment sites. METHODS: Participants completed two conditions (laboratory [N=13] and free-living conditions [N=9]), in which during both of these conditions they wore two ActiGraph GT9X accelerometers on their non-dominant wrist (side-by-side) and two ActiGraph GT9X accelerometers on their right hip in line with the midaxillary line (side-by-side)...
March 14, 2017: Journal of Physical Activity & Health
https://www.readbyqxmd.com/read/28290739/minimum-accelerometer-wear-time-in-infants-a-generalizability-study
#14
E Andrew Pitchford, Leah R Ketcheson, Hyun-Jin Kwon, Dale A Ulrich
BACKGROUND: Research measuring physical activity behaviors during infancy is critical for evaluation of early intervention efforts to reduce rapid weight gain. There is little known about the physical activity patterns of infants, due in part to limited evidence for measurement procedures. This study sought to determine the minimal number of days and hours of accelerometry needed to reliably measure daily physical activity in infants using Generalizability (G) theory. METHODS: A total of 23 infants (14 F, 9 M) wore an accelerometer on the right ankle and right wrist for 7 days...
March 14, 2017: Journal of Physical Activity & Health
https://www.readbyqxmd.com/read/28286485/relation-of-heart-rate-and-its-variability-during-sleep-with-age-physical-activity-and-body-composition-in-young-children
#15
David Herzig, Prisca Eser, Thomas Radtke, Alina Wenger, Thomas Rusterholz, Matthias Wilhelm, Peter Achermann, Amar Arhab, Oskar G Jenni, Tanja H Kakebeeke, Claudia S Leeger-Aschmann, Nadine Messerli-Bürgy, Andrea H Meyer, Simone Munsch, Jardena J Puder, Einat A Schmutz, Kerstin Stülb, Annina E Zysset, Susi Kriemler
Background: Recent studies have claimed a positive effect of physical activity and body composition on vagal tone. In pediatric populations, there is a pronounced decrease in heart rate with age. While this decrease is often interpreted as an age-related increase in vagal tone, there is some evidence that it may be related to a decrease in intrinsic heart rate. This factor has not been taken into account in most previous studies. The aim of the present study was to assess the association between physical activity and/or body composition and heart rate variability (HRV) independently of the decline in heart rate in young children...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28278503/doubly-labeled-water-method-and-accelerometer-for-the-measurement-of-energy-expenditure-in-human-immunodeficiency-virus-infected-patients
#16
Mariana P Guimarães, Eduardo Ferriolli, Karina Pfrimer, Anderson M Navarro
BACKGROUND: Several studies have reported increased resting energy expenditure (REE) in human immunodeficiency virus (HIV)-infected patients with HIV-associated lipodystrophy syndrome (HALS). However, limited data exist on the total energy expenditure (TEE). This study was aimed at evaluating the REE and TEE of HIV-infected patients with and without HALS by using the doubly labeled water (DLW) technique and the activity monitor based on accelerometry system (AM), and comparing the results obtained using both methods...
March 10, 2017: Annals of Nutrition & Metabolism
https://www.readbyqxmd.com/read/28277404/associations-of-vigorous-intensity-physical-activity-with-biomarkers-in-youth
#17
Justin B Moore, Michael W Beets, Keith Brazendale, Steven N Blair, Russell R Pate, Lars B Andersen, Sigmund A Anderssen, Anders Grøntved, Pedro C Hallal, Katarzyna Kordas, Susi Kriemler, John J Reilly, Luis B Sardinha
INTRODUCTION: Physical activity (PA) conveys known cardiometabolic benefits to youth, but the contribution of vigorous-intensity PA (VPA) to these benefits is unknown. Therefore, we sought to determine, a) the associations between VPA and cardiometabolic biomarkers independent of moderate-intensity PA (MPA) and time sedentary, and b) the accelerometer cutpoint that best represents the threshold for health-promoting VPA in youth. METHODS: Data from the International Children's Accelerometry Database (ICAD) were analyzed in 2015...
March 8, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28276789/association-between-sedentary-behavior-and-normal-range-lactate-dehydrogenase-activity
#18
Meghan K Edwards, Samuel L Buckner, Jeremy P Loenneke, Paul D Loprinzi
OBJECTIVES: Recent research demonstrates that lactate dehydrogenase (LDH) activity within the normal range may serve as a mediator in the (positive) relationship between physical activity and cardiovascular disease risk. Emerging work supports deleterious associations between sedentary behavior and health, independent of physical activity. Thus, this study evaluated if sedentary behavior was associated with normal-range LDH activity, independent of physical activity. METHODS: Data from the 2003-2006 NHANES were used (N = 2,087 adults; 40-79 yrs)...
March 1, 2017: Postgraduate Medicine
https://www.readbyqxmd.com/read/28271920/impact-of-educational-interventions-on-primary-prevention-of-cardiovascular-disease-a-systematic-review-with-a-focus-on-physical-activity
#19
Ana Ramôa Castro, Nórton L Oliveira, Fernando Ribeiro, José Oliveira
BACKGROUND: Evidence from epidemiological and experimental studies illustrates the beneficial impact of healthy lifestyle behaviours on cardiovascular risk. OBJECTIVES: To assess the effectiveness of primary care health education interventions designed to promote healthy lifestyles on physical activity levels and cardiovascular risk. METHODS: A computer-aided search on PubMed and Scopus was performed to identify relevant studies published from January 2000 to October 2016...
December 2017: European Journal of General Practice
https://www.readbyqxmd.com/read/28269032/monitoring-and-detecting-atrial-fibrillation-using-wearable-technology
#20
Shamim Nemati, Mohammad M Ghassemi, Vaidehi Ambai, Nino Isakadze, Oleksiy Levantsevych, Amit Shah, Gari D Clifford
Atrial fibrillation (AFib) is diagnosed by analysis of the morphological and rhythmic properties of the electrocardiogram. It was recently shown that accurate detection of AFib is possible using beat-to-beat interval variations. This raises the question of whether AFib detection can be performed using a pulsatile waveform such as the Photoplethysmogram (PPG). The recent explosion in use of recreational and professional ambulatory wrist-based pulse monitoring devices means that an accurate pulse-based AFib screening algorithm would enable large scale screening for silent or undiagnosed AFib, a significant risk factor for multiple diseases...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
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