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https://www.readbyqxmd.com/read/28222541/augmented-effects-of-emg-biofeedback-interfaced-with-virtual-reality-on-neuromuscular-control-and-movement-coordination-during-reaching-in-children-with-cerebral-palsy
#1
Ji Won Yoo, Dong Ryul Lee, Young Joo Cha, Sung Hyun You
BACKGROUND: The purpose of the present study was to compare therapeutic effects of an electromyography (EMG) biofeedback augmented by virtual reality (VR) and EMG biofeedback alone on the triceps and biceps (T:B) muscle activity imbalance and elbow joint movement coordination during a reaching motor taskOBJECTIVE: To compare therapeutic effects of an electromyography (EMG) biofeedback augmented by virtual reality (VR) and EMG biofeedback alone on the triceps and biceps muscle activity imbalance and elbow joint movement coordination during a reaching motor task in normal children and children with spastic cerebral palsy (CP)...
January 30, 2017: NeuroRehabilitation
https://www.readbyqxmd.com/read/28222058/classifiers-for-accelerometer-measured-behaviors-in-older-women
#2
Dori Rosenberg, Suneeta Godbole, Katherine Ellis, Chongzhi DI, Andrea Lacroix, Loki Natarajan, Jacqueline Kerr
PURPOSE: Machine learning methods could better improve the detection of specific types of physical activities and sedentary behaviors from accelerometer data. No studies in older populations have developed and tested algorithms for walking and sedentary time in free-living daily life. Our goal was to rectify this gap by leveraging access to data from two studies in older women. METHODS: In study 1, algorithms were developed and tested in a sample of older women (N = 39, age range = 55-96 yr) in the field...
March 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28222056/physical-activity-sedentary-behavior-and-inflammatory-and-hemostatic-markers-in-men
#3
Tessa J Parsons, Claudio Sartini, Paul Welsh, Naveed Sattar, Sarah Ash, Lucy T Lennon, S Goya Wannamethee, I-Min Lee, Peter H Whincup, Barbara J Jefferis
PURPOSE: This study aimed to determine whether higher levels of physical activity (PA) and less sedentary behavior (SB) are associated with less inflammation, indicated by inflammatory and hemostatic biomarkers, in older men. METHODS: A cross-sectional study of 1139 men, from the British Regional Heart Study (mean ± SD age = 78 ± 5 yr), and longitudinal analyses of 490 men with two PA measures 1 yr apart were used in this study. Single fasting venous blood samples were analyzed for several biomarkers...
March 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28220548/relationship-of-physical-activity-with-physical-function-and-health-related-quality-of-life-in-patients-having-undergone-allogeneic-haematopoietic-stem-cell-transplantation
#4
S Morishita, K Kaida, S Yamauchi, T Wakasugi, K Ikegame, H Ogawa, K Domen
In this study, we investigated the differences in physical activity before and after transplantation, and the relationship between physical activity and physical function and health-related quality of life (QOL) in 30 patients who underwent allogeneic haematopoietic stem cell transplantation (allo-HSCT). Duration and intensity of physical activity were quantified using a three-dimensional accelerometer. Physical function was quantified by handgrip and knee-extensor strength, with the 6-minute walk test (6MWT) used as a measure of exercise capacity...
February 21, 2017: European Journal of Cancer Care
https://www.readbyqxmd.com/read/28220064/effect-of-experimentally-induced-trunk-muscular-tensions-on-the-sit-to-stand-task-performance-and-associated-postural-adjustments
#5
Alain Hamaoui, Caroline Alamini-Rodrigues
It has been shown that increased muscular activity along the trunk is likely to impair body balance, but there is little knowledge about its consequences on more dynamic tasks. The purpose of this study was to determine the effect of unilateral and bilateral increases of muscular tension along the trunk on the sit-to-stand task (STS) performance and associated anticipatory postural adjustments (APAs). Twelve healthy females (23 ± 3 years, 163 ± 0.06 cm, 56 ± 9 kg), free of any neurological or musculoskeletal disorders, performed six trials of the STS at maximum speed, in seven experimental conditions varying the muscular tension along each side of the trunk, using a specific bimanual compressive load paradigm...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28220040/associations-between-physical-activity-and-bmi-body-fatness-and-visceral-adiposity-in-overweight-or-obese-latino-and-non-latino-adults
#6
N Cameron, J Godino, J F Nichols, D Wing, L Hill, K Patrick
BACKGROUND/OBJECTIVES: Although several studies have reported associations between moderate to vigorous physical activity (MVPA), body fatness, and visceral adipose tissue (VAT), the extent to which associations differ among Latinos and non-Latinos remains unclear. The present study evaluated the associations between body composition and MVPA in Latino and non-Latino adults. SUBJECTS/METHODS: An exploratory, cross-sectional analysis was conducted using baseline data collected from 298 overweight adults enrolled in a 12-month randomized controlled trial that tested the efficacy of text messaging to improve weight loss...
February 21, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28218642/theoretical-analysis-of-an-optical-accelerometer-based-on-resonant-optical-tunneling-effect
#7
Aoqun Jian, Chongguang Wei, Lifang Guo, Jie Hu, Jun Tang, Jun Liu, Xuming Zhang, Shengbo Sang
Acceleration is a significant parameter for monitoring the status of a given objects. This paper presents a novel linear acceleration sensor that functions via a unique physical mechanism, the resonant optical tunneling effect (ROTE). The accelerometer consists of a fixed frame, two elastic cantilevers, and a major cylindrical mass comprised of a resonant cavity that is separated by two air tunneling gaps in the middle. The performance of the proposed sensor was analyzed with a simplified mathematical model, and simulated using finite element modeling...
February 17, 2017: Sensors
https://www.readbyqxmd.com/read/28216569/micromachined-fluid-inertial-sensors
#8
REVIEW
Shiqiang Liu, Rong Zhu
Micromachined fluid inertial sensors are an important class of inertial sensors, which mainly includes thermal accelerometers and fluid gyroscopes, which have now been developed since the end of the last century for about 20 years. Compared with conventional silicon or quartz inertial sensors, the fluid inertial sensors use a fluid instead of a solid proof mass as the moving and sensitive element, and thus offer advantages of simple structures, low cost, high shock resistance, and large measurement ranges while the sensitivity and bandwidth are not competitive...
February 14, 2017: Sensors
https://www.readbyqxmd.com/read/28214251/children-s-moderate-to-vigorous-physical-activity-attending-summer-day-camps
#9
Keith Brazendale, Michael W Beets, R Glenn Weaver, Jessica L Chandler, Allison B Randel, Gabrielle M Turner-McGrievy, Justin B Moore, Jennifer L Huberty, Dianne S Ward
INTRODUCTION: National physical activity standards call for all children to accumulate 60 minutes/day of moderate to vigorous physical activity (MVPA). The contribution of summer day camps toward meeting this benchmark is largely unknown. The purpose of this study was to provide estimates of children's MVPA during summer day camps. METHODS: Children (n=1,061, 78% enrollment; mean age, 7.8 years; 46% female; 65% African American; 48% normal weight) from 20 summer day camps wore ActiGraph GT3x+ accelerometers on the wrist during camp hours for up to 4 non-consecutive days over the summer of 2015 (July)...
February 14, 2017: American Journal of Preventive Medicine
https://www.readbyqxmd.com/read/28211832/associations-between-trunk-flexion-and-physical-activity-of-patient-care-workers-for%C3%A2-a-single-shift-a-pilot-study
#10
Oscar E Arias, Peter E Umukoro, Sonja D Stoffel, Karen Hopcia, Glorian Sorensen, Jack T Dennerlein
BACKGROUND: Trunk flexion and occupational physical activity are parameters that have been used to assess and characterize jobs with high physical demands. OBJECTIVE: Characterize the physical load of trunk flexion and physical activity of patient care unit (PCU) workers during a single work shift. METHODS: Participants wore an accelerometer to measure physical activity and an inclinometer to assess trunk flexion during a single work shift, which was compared using correlation and linear regression analyses...
February 17, 2017: Work: a Journal of Prevention, Assessment, and Rehabilitation
https://www.readbyqxmd.com/read/28210966/predictors-of-physical-activity-after-gastric-bypass-a-prospective-study
#11
Irmelin Bergh, Ingela Lundin Kvalem, Tom Mala, Bjørge Herman Hansen, Falko F Sniehotta
BACKGROUND: Most patients do not meet the recommended level of physical activity after bariatric surgery, and psychological factors underlying postoperative physical activity remain poorly understood. This study aimed at identifying self-regulatory predictors of physical activity after bariatric surgery. METHODS: Questionnaire data including self-regulation variables and the short-version of the International Physical Activity Questionnaire were obtained in a prospective cohort of 230 patients 1 year after Roux-en-Y gastric bypass...
February 16, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28210807/erratum-to-temporal-patterns-of-sitting-at-work-are-associated-with-neck-shoulder-pain-in-blue-collar-workers-a-cross-sectional-analysis-of-accelerometer-data-in-the-dphacto-study
#12
David M Hallman, Svend Erik Mathiassen, Marina Heiden, Nidhi Gupta, Marie Birk Jørgensen, Andreas Holtermann
No abstract text is available yet for this article.
February 16, 2017: International Archives of Occupational and Environmental Health
https://www.readbyqxmd.com/read/28210059/the-validity-of-an-accelerometer-based-method-for-estimating-fluidity-in-the-sit-to-walk-task-in-a-community-setting
#13
Tomoyuki Asakura, Yoshiyuki Miyazawa, Shigeru Usuda
[Purpose] Fluidity in the sit-to-walk task has been quantitatively measured with three-dimensional motion analysis system. The purpose of this study was to determine the validity of an accelerometer-based method for estimating fluidity in community-dwelling elderly individuals. [Subjects and Methods] Seventeen community-dwelling elderly females performed a sit-to-walk task. The motion was recorded by an accelerometer, a three-dimensional motion analysis system and a foot pressure sensor simultaneously. The timings of events determined from the acceleration waveform were compared to the timings determined from the three-dimensional motion analysis data (task onset, maximum trunk inclination) or foot pressure sensor data (first heel strike)...
January 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28208736/time-elastic-generative-model-for-acceleration-time-series-in-human-activity-recognition
#14
Mario Munoz-Organero, Ramona Ruiz-Blazquez
Body-worn sensors in general and accelerometers in particular have been widely used in order to detect human movements and activities. The execution of each type of movement by each particular individual generates sequences of time series of sensed data from which specific movement related patterns can be assessed. Several machine learning algorithms have been used over windowed segments of sensed data in order to detect such patterns in activity recognition based on intermediate features (either hand-crafted or automatically learned from data)...
February 8, 2017: Sensors
https://www.readbyqxmd.com/read/28208707/gaitkeeper-a-system-for-measuring-canine-gait
#15
Cassim Ladha, Jack O'Sullivan, Zoe Belshaw, Lucy Asher
It is understood gait has the potential to be used as a window into neurodegenerative disorders, identify markers of subclinical pathology, inform diagnostic algorithms of disease progression and measure the efficacy of interventions. Dogs' gaits are frequently assessed in a veterinary setting to detect signs of lameness. Despite this, a reliable, affordable and objective method to assess lameness in dogs is lacking. Most described canine lameness assessments are subjective, unvalidated and at high risk of bias...
February 8, 2017: Sensors
https://www.readbyqxmd.com/read/28207820/objectively-measured-versus-self-reported-physical-activity-in-children-and-adolescents-with-cancer
#16
Miriam Götte, Corinna Caroline Seidel, Sabine Verena Kesting, Dieter Rosenbaum, Joachim Boos
OBJECTIVE: Existing research recognizes low levels of physical activity in pediatric patients with cancer, but much uncertainty exists about their capability to self-reflect physical activity levels. The objective of this study was to compare results of subjective self-reports and objective accelerometers regarding levels of daily walking as well as moderate-to-vigorous physical activities. METHODS: Results of the objective assessment tool StepWatchTM Activity Monitor and self-reporting with a standardized questionnaire were compared in 28 children and adolescents during cancer treatment...
2017: PloS One
https://www.readbyqxmd.com/read/28207403/predictive-walking-age-health-analyzer
#17
Priyanka Mandal, Krishna Tank, Tapas Monday, Chih-Hung Chen, M Jamal Deen
A simple, low-power and wearable health analyzer for early identification and management of some diseases is presented. To achieve this goal, we propose a walking pattern analysis system that uses features such as speed, energy, turn ratio, and bipedal behavior to characterize and classify individuals in distinct walking-ages. A database is constructed from 74 healthy young adults in the age range of 18 to 60 years using the combination of inertial signals from an accelerometer and a gyroscope on a level path including turns...
February 9, 2017: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/28206828/validity-of-the-timed-25-foot-walk-as-an-ambulatory-performance-outcome-measure-for-multiple-sclerosis
#18
Robert W Motl, Jeffrey A Cohen, Ralph Benedict, Glenn Phillips, Nicholas LaRocca, Lynn D Hudson, Richard Rudick
The Multiple Sclerosis Outcome Assessments Consortium (MSOAC) includes representatives from advocacy organizations, Food and Drug Administration (FDA), European Medicines Agency (EMA), National Institute of Neurological Disorders and Stroke (NINDS), academic institutions, and industry partners along with persons living with multiple sclerosis (MS). One of the MSOAC goals is acceptance and qualification by regulators of performance outcomes that are highly reliable and valid, practical, cost-effective, and meaningful in MS...
February 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28199357/home-detection-of-freezing-of-gait-using-support-vector-machines-through-a-single-waist-worn-triaxial-accelerometer
#19
Daniel Rodríguez-Martín, Albert Samà, Carlos Pérez-López, Andreu Català, Joan M Moreno Arostegui, Joan Cabestany, Àngels Bayés, Sheila Alcaine, Berta Mestre, Anna Prats, M Cruz Crespo, Timothy J Counihan, Patrick Browne, Leo R Quinlan, Gearóid ÓLaighin, Dean Sweeney, Hadas Lewy, Joseph Azuri, Gabriel Vainstein, Roberta Annicchiarico, Alberto Costa, Alejandro Rodríguez-Molinero
Among Parkinson's disease (PD) symptoms, freezing of gait (FoG) is one of the most debilitating. To assess FoG, current clinical practice mostly employs repeated evaluations over weeks and months based on questionnaires, which may not accurately map the severity of this symptom. The use of a non-invasive system to monitor the activities of daily living (ADL) and the PD symptoms experienced by patients throughout the day could provide a more accurate and objective evaluation of FoG in order to better understand the evolution of the disease and allow for a more informed decision-making process in making adjustments to the patient's treatment plan...
2017: PloS One
https://www.readbyqxmd.com/read/28198983/prolonged-sedentary-time-and-physical-fitness-among-canadian-men-and-women-aged-60-to-69
#20
Shilpa Dogra, Janine M Clarke, Jennifer L Copeland
BACKGROUND: Evidence for associations between prolonged sedentary time and breaks in sedentary time and fitness is limited in older adults. This study examines associations between objectively measured and self-reported total sedentary time and breaks in sedentary time with cardiorespiratory and musculoskeletal fitness among Canadian men and women aged 60 to 69. DATA AND METHODS: Data from cycles 1 and 2 of the Canadian Health Measures Survey were used for analysis...
February 15, 2017: Health Reports
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