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https://www.readbyqxmd.com/read/28101944/biomechanical-implications-of-walking-with-indigenous-footwear
#1
Catherine Willems, Gaetane Stassijns, Wim Cornelis, Kristiaan D'Août
OBJECTIVES: This study investigates biomechanical implications of walking with indigenous "Kolhapuri" footwear compared to barefoot walking among a population of South Indians. MATERIALS AND METHODS: Ten healthy adults from South India walked barefoot and indigenously shod at voluntary speed on an artificial substrate. The experiment was repeated outside, on a natural substrate. Data were collected from (1) a heel-mounted 3D-accelerometer recording peak impact at heel contact, (2) an ankle-mounted 3D-goniometer (plantar/dorsiflexion and inversion/eversion), and (3) sEMG electrodes at the m...
January 19, 2017: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/28101566/effect-of-physical-activity-in-the-first-five-days-after-cardiac-surgery
#2
Sean F Mungovan, Preetraj Singh, Gregory C Gass, Neil A Smart, Andrew D Hirschhorn
OBJECTIVES: To quantify physiotherapist-supervised and independent physical activity undertaken from the first to the fifth day after cardiac surgery (POD1 to POD5), and to relate the amount of physical activity undertaken with hospital stay and postoperative physiological functional capacity on POD6. METHODS: Physiotherapist-supervised and independent physical activity were monitored in 83 adult patients undergoing cardiac surgery, using a bi-axial accelerometer and skin sensors that measured, galvanic skin response and body temperature...
January 19, 2017: Journal of Rehabilitation Medicine
https://www.readbyqxmd.com/read/28101444/accelerometer-data-treatment-for-adolescents-fitting-a-piece-of-the-puzzle
#3
Melody Smith, Steve Taylor, Leon Iusitini, Tom Stewart, Fa'asisila Savila, El-Shadan Tautolo, Lindsay Plank, Shabnam Jalili-Moghaddam, Janis Paterson, Elaine Rush
This study aimed to assess the differences in participant retention and associations between physical activity and key variables when a range of accelerometer data inclusion criteria are employed. Data were drawn from 204 adolescents of Pacific Island heritage (survey, body composition, 7-day accelerometry) and their parents (date of birth, socioeconomic status) between October 2014 and February 2016 in Auckland, New Zealand. Data wear time criteria for inclusion were as follows: A) > = 10 h/weekday or > = 8 h weekend day, > = 5 days (at least one weekend day); B) > = 10 h/weekday or > = 8 h weekend day, > = 4 days; C) > = 7 h/day, > = 3 days; D) > = 10 h/day, > = 1 day...
March 2017: Preventive Medicine Reports
https://www.readbyqxmd.com/read/28100466/associations-of-accelerometer-measured-and-self-reported-sedentary-time-with-leukocyte-telomere-length-in-older-women
#4
Aladdin H Shadyab, Caroline A Macera, Richard A Shaffer, Sonia Jain, Linda C Gallo, Michael J LaMonte, Alexander P Reiner, Charles Kooperberg, Cara L Carty, Chongzhi Di, Todd M Manini, Lifang Hou, Andrea Z LaCroix
Few studies have assessed the association of sedentary time with leukocyte telomere length (LTL). In a cross-sectional study conducted in 2012-2013, we examined associations of accelerometer-measured and self-reported sedentary time with LTL in a sample of 1,481 older white and African-American women from the Women's Health Initiative and determined whether associations varied by level of moderate- to vigorous-intensity physical activity (MVPA). The association between sedentary time and LTL was evaluated using multiple linear regression models...
January 18, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28100122/using-the-self-determination-theory-to-understand-chinese-adolescent-leisure-time-physical-activity
#5
Lijuan Wang
PURPOSES: This study applies the self-determination theory (SDT) to test the hypothesized relationships among perceived autonomy support from parents, physical education (PE) teachers, and peers, the fulfilment of psychological needs (i.e., autonomy, competence, and relatedness), autonomous motivation, and leisure-time physical activity of Chinese adolescents. METHOD: There are 255 grade six to eight student participants from four middle schools around Shanghai, China included in this study...
January 19, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28099449/the-use-of-functional-data-analysis-to-evaluate-activity-in-a-spontaneous-model-of-degenerative-joint-disease-associated-pain-in-cats
#6
Margaret E Gruen, Marcela Alfaro-Córdoba, Andrea E Thomson, Alicia C Worth, Ana-Maria Staicu, B Duncan X Lascelles
INTRODUCTION AND OBJECTIVES: Accelerometry is used as an objective measure of physical activity in humans and veterinary species. In cats, one important use of accelerometry is in the study of therapeutics designed to treat degenerative joint disease (DJD) associated pain, where it serves as the most widely applied objective outcome measure. These analyses have commonly used summary measures, calculating the mean activity per-minute over days and comparing between treatment periods. While this technique has been effective, information about the pattern of activity in cats is lost...
2017: PloS One
https://www.readbyqxmd.com/read/28098829/rapid-transfer-alignment-of-mems-sins-based-on-adaptive-incremental-kalman-filter
#7
Hairong Chu, Tingting Sun, Baiqiang Zhang, Hongwei Zhang, Yang Chen
In airborne MEMS SINS transfer alignment, the error of MEMS IMU is highly environment-dependent and the parameters of the system model are also uncertain, which may lead to large error and bad convergence of the Kalman filter. In order to solve this problem, an improved adaptive incremental Kalman filter (AIKF) algorithm is proposed. First, the model of SINS transfer alignment is defined based on the "Velocity and Attitude" matching method. Then the detailed algorithm progress of AIKF and its recurrence formulas are presented...
January 14, 2017: Sensors
https://www.readbyqxmd.com/read/28095956/decelerations-of-parachute-opening-shock-in-skydivers
#8
Kristofer Gladh, Riccardo Lo Martire, Björn O Äng, Peter Lindholm, Jenny Nilsson, Anton Westman
INTRODUCTION: High prevalence of neck pain among skydivers is related to parachute opening shock (POS) exposure, but few investigations of POS deceleration have been made. Existing data incorporate equipment movements, limiting its representability of skydiver deceleration. This study aims to describe POS decelerations and compare human- with equipment-attached data. METHODS: Wearing two triaxial accelerometers placed on the skydiver (neck-sensor) and equipment (rig-sensor), 20 participants made 2 skydives each...
February 1, 2017: Aerospace Medicine and Human Performance
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
#9
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/28095075/a-pilot-study-using-entropy-as-a-non-invasive-assessment-of-running
#10
Andrew M Murray, Joong Hyun Ryu, John Sproule, Anthony P Turner, Phil Graham-Smith, Marco Cardinale
PURPOSE: Running performance is influenced by the interaction of biomechanical and physiological factors. Miniaturised accelerometers worn by the athlete can be used to quantify mechanical aspects of running and be used as a non-invasive tool to assess training status and progression. The aim of this study was to define and validate a method to assess running regularity and allow the estimation of an individual's V̇O2 and/or blood lactate [La]b based on data collected with accelerometers and heart rate (HR)...
January 17, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28095070/player-responses-to-match-and-training-demands-during-an-intensified-fixture-schedule-in-professional-rugby-league-a-case-study
#11
Craig Twist, Jamie Highton, Matthew Daniels, Nathan Mill, Graeme Close
Player loads and fatigue responses were reported in 15 professional rugby league players (24.3 ± 3.8 y) during a period of intensified fixtures. Repeated measures of internal and external loads, perceived wellbeing and jump flight time were recorded across 22 days, comprising nine training sessions and matches on days 5, 12, 15 and 21 (player exposure: 3.6 ± 0.6 matches). Mean training load (session RPE x duration) between matches was 1177, 1083, 103, and 650 AU, respectively. Relative distance in Match 1 (82 m/min) and Match 4 (79 m/min) was very likely lower in Match 2 (76 m/min) and likely higher in Match 3 (86 m/min)...
January 17, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28094599/plasma-25-hydroxyvitamin-d3-levels-in-colorectal-cancer-patients-and-associations-with-physical-activity
#12
Stephanie Skender, Jürgen Böhm, Petra Schrotz-King, Jenny Chang-Claude, Erin M Siegel, Karen Steindorf, Robert W Owen, Jennifer Ose, Michael Hoffmeister, Hermann Brenner, Cornelia M Ulrich
Physical activity (PA) and vitamin D are thought to affect colorectal cancer prognosis. The present study investigates associations between 25(OH)D3 and PA in prospectively followed colorectal cancer patients in the ColoCare study. At 6, 12, and 24 mo after surgery, patients donated a blood sample, wore an accelerometer for 10 consecutive days, and completed a PA questionnaire. Plasma 25-hydroxyvitamin D3 (25(OH)D3) levels were measured by high-performance liquid chromatography. We tested associations using partial correlations and multivariate linear regression analysis, adjusted for season, age, and body mass index...
January 17, 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/28094028/annual-10-month-aerial-life-phase-in-the-common-swift-apus-apus
#13
Anders Hedenström, Gabriel Norevik, Kajsa Warfvinge, Arne Andersson, Johan Bäckman, Susanne Åkesson
The common swift (Apus apus) is adapted to an aerial lifestyle, where food and nest material are captured in the air. Observations have prompted scientists to hypothesize that swifts stay airborne for their entire non-breeding period [1, 2], including migration into sub-Saharan Africa [3-5]. It is mainly juvenile common swifts that occasionally roost in trees or buildings before autumn migration when weather is bad [1, 6]. In contrast, the North American chimney swift (Chaetura pelagica) and Vaux's swift (C...
November 21, 2016: Current Biology: CB
https://www.readbyqxmd.com/read/28093608/spatiotemporal-drivers-of-energy-expenditure-in-a-coastal-marine-fish
#14
Jacob W Brownscombe, Steven J Cooke, Andy J Danylchuk
Animal behavior and energy expenditure often vary significantly across the landscape, and quantifying energy expenditure over space and time provides mechanistic insight into ecological dynamics. Yet, spatiotemporal variability in energy expenditure has rarely been explored in fully aquatic species such as fish. Our objective was to quantify spatially explicit energy expenditure for a tropical marine teleost fish, bonefish (Albula vulpes), to examine how bonefish energetics vary across landscape features and temporal factors...
January 16, 2017: Oecologia
https://www.readbyqxmd.com/read/28093433/is-questionnaire-based-sitting-time-inaccurate-and-can-it-be-improved-a-cross-sectional-investigation-using-accelerometer-based-sitting-time
#15
Nidhi Gupta, Caroline Stordal Christiansen, Christiana Hanisch, Hans Bay, Hermann Burr, Andreas Holtermann
OBJECTIVES: To investigate the differences between a questionnaire-based and accelerometer-based sitting time, and develop a model for improving the accuracy of questionnaire-based sitting time for predicting accelerometer-based sitting time. METHODS: 183 workers in a cross-sectional study reported sitting time per day using a single question during the measurement period, and wore 2 Actigraph GT3X+ accelerometers on the thigh and trunk for 1-4 working days to determine their actual sitting time per day using the validated Acti4 software...
January 16, 2017: BMJ Open
https://www.readbyqxmd.com/read/28092643/physical-activity-and-sedentary-time-among-children-with-disabilities-at-school
#16
Cindy H P Sit, Thomas L McKenzie, Ester Cerin, Bik C Chow, Wendy Y Huang, Jie Yu
PURPOSES: Physical activity (PA) is important for the development of children with disabilities, but rarely does this population meet the recommended standards. Schools are salient locations for PA, but little is known about how specific school settings affect the PA of children with diverse disabilities. We assessed PA and sedentary time (ST) of children with disabilities in three school settings (physical education, recess, lunchtime). METHODS: Participants included 259 children from 13 Hong Kong special schools for five primary disabilities: visual impairments, hearing impairments, physical disabilities, intellectual disabilities, and social development problems...
February 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28092582/automatic-prediction-of-health-status-using-smartphone-derived-behaviour-profiles
#17
Daniel Kelly, Kevin Curran, Brian Caulfield
OBJECTIVE: Current methods of assessing the affect a patients' health has on their daily life are extremely limited. The aim of this work is to develop a sensor based approach to health status measurement in order to objectively measure health status. METHODS: Techniques to generate human behaviour profiles, derived from smartphone accelerometer and gyroscope sensors, are proposed. Experiments, using SVM regression models, are then conducted in order to evaluate the use of the proposed behaviour profiles as a predictor of health status...
January 9, 2017: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/28092092/domains-of-daily-physical-activity-in-children-with-mitochondrial-disease-a-3d-accelerometry-approach
#18
Saskia Koene, Ilse Dirks, Esmee van Mierlo, Pascal R de Vries, Anjo J W M Janssen, Jan A M Smeitink, Arjen Bergsma, Hans Essers, Kenneth Meijer, Imelda J M de Groot
Feasible, sensitive and clinically relevant outcome measures are of extreme importance when designing clinical trials. For paediatric mitochondrial disease, no robust end point has been described to date. The aim of this study was to select the domains of daily physical activity, which can be measured by 3D accelerometry, that could serve as sensitive end points in future clinical trials in children with mitochondrial disorders.In this exploratory observational study, 17 patients with mitochondrial disease and 16 age- and sex-matched controls wore 3D accelerometers at the upper leg, upper arm, lower arm and chest during one weekend...
January 17, 2017: JIMD Reports
https://www.readbyqxmd.com/read/28092060/parenting-self-efficacy-parent-depression-and-healthy-childhood-behaviors-in-a-low-income-minority-population-a-cross-sectional-analysis
#19
William J Heerman, Julie Lounds Taylor, Kenneth A Wallston, Shari L Barkin
Objectives Childhood obesity prevention and treatment depends, in part, on parents acting as agents of change for their children. Our objective was to measure the associations between parenting self-efficacy, parent depressive symptoms, and preschool child behaviors that support healthy growth. Methods We performed a cross-sectional analysis of baseline data from a randomized controlled trial. Parenting self-efficacy was measured using a 5-item version of the Parenting Sense of Competence (PSOC-5) scale (α= 0...
January 13, 2017: Maternal and Child Health Journal
https://www.readbyqxmd.com/read/28090738/changes-in-objectively-measured-physical-activity-in-adolescents-with-down-syndrome-the-up-down-longitudinal-study
#20
R Izquierdo-Gomez, D Martinez-Gómez, I Esteban-Cornejo, P C Hallal, L García-Cervantes, A Villagra, O L Veiga
BACKGROUND: It is a priority to understand that physical activity behaviour over time is a priority in Down syndrome population in order to design and promote succesfull interventions to maintain or increase levels of physical activity. We aimed to study 1 and 2-year changes in objectively measured physical activity among a relatively large sample of adolescents with Down syndrome. METHODS: This study comprised a total of 99 adolescents with Down syndrome (38 girls) aged from 11 to 20 years old at baseline...
January 16, 2017: Journal of Intellectual Disability Research: JIDR
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