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https://www.readbyqxmd.com/read/29776782/an-intervention-to-increase-students-physical-activity-a-2-year-pilot-study
#1
R Glenn Weaver, Collin A Webster, Michael W Beets, Keith Brazendale, Lauren Schisler, Mazen Aziz
INTRODUCTION: Schools are called upon to provide children with 30 minutes/day of moderate to vigorous physical activity (MVPA). Most school-based physical activity interventions have not targeted schools that serve children from low-income families. This study evaluated the effects of a pilot, competency-building professional development program on the school day MVPA and total activity (light- to vigorous-intensity activity) of students from schools that serve low-income families. STUDY DESIGN: Single group intervention with multiple follow-up repeated cross-sectional measures...
May 15, 2018: American Journal of Preventive Medicine
https://www.readbyqxmd.com/read/29746520/local-dynamic-stability-during-gait-for-predicting-falls-in-elderly-people-a-one-year-prospective-study
#2
Lucia Bizovska, Zdenek Svoboda, Miroslav Janura, Maria Cristina Bisi, Nicolas Vuillerme
Computing the local dynamic stability using accelerometer data from inertial sensors has recently been proposed as a gait measure which may be able to identify elderly people at fall risk. However, the assumptions supporting this potential were concluded as most studies implement a retrospective fall history observation. The aim of this study was to evaluate the potential of local dynamic stability for fall risk prediction in a cohort of subjects over the age of 60 years using a prospective fall occurrence observation...
2018: PloS One
https://www.readbyqxmd.com/read/29729588/the-effects-of-a-single-dose-of-fluoxetine-on-practice-dependent-plasticity
#3
Michelle N McDonnell, Carl Zipser, Ghazaleh Darmani, Ulf Ziemann, Florian Müller-Dahlhaus
OBJECTIVE: To determine whether a single dose of fluoxetine increases corticomotoneuronal excitability, motor performance and practice-dependent plasticity. METHODS: Twelve healthy adults completed this placebo-controlled, pseudo-randomized, double-blind crossover study. Transcranial magnetic stimulation (TMS) was used to assess corticomotoneuronal excitability, and two uni-axial accelerometers measured kinetics of fastest possible ballistic voluntary thumb movements and TMS-evoked thumb movements...
April 26, 2018: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/29701721/improving-fall-detection-using-an-on-wrist-wearable-accelerometer
#4
Samad Barri Khojasteh, José R Villar, Camelia Chira, Víctor M González, Enrique de la Cal
Fall detection is a very important challenge that affects both elderly people and the carers. Improvements in fall detection would reduce the aid response time. This research focuses on a method for fall detection with a sensor placed on the wrist. Falls are detected using a published threshold-based solution, although a study on threshold tuning has been carried out. The feature extraction is extended in order to balance the dataset for the minority class. Alternative models have been analyzed to reduce the computational constraints so the solution can be embedded in smart-phones or smart wristbands...
April 26, 2018: Sensors
https://www.readbyqxmd.com/read/29701182/wearable-technology-reveals-gait-compensations-unstable-walking-patterns-and-fatigue-in-people-with-multiple-sclerosis
#5
Michael Psarakis, David Greene, Michael H Cole, Stephen R Lord, Phu Hoang, Matthew A D Brodie
People with Multiple Sclerosis (PwMS) often experience a decline in gait performance, which can compromise their independence and increase falls. Ankle joint contractures in PwMS are common and often result in compensatory gait patterns to accommodate reduced ankle range of motion (ROM). Using advances in wearable technology, the aim of this study was to quantify head and pelvis movement patterns that occur in PwMS with disability and determine how these secondary gait compensations impact on gait stability...
April 27, 2018: Physiological Measurement
https://www.readbyqxmd.com/read/29690496/dual-task-elderly-gait-of-prospective-fallers-and-non-fallers-a-wearable-sensor-based-analysis
#6
Jennifer Howcroft, Edward D Lemaire, Jonathan Kofman, William E McIlroy
Wearable sensors could facilitate point of care, clinically feasible assessments of dynamic stability and associated fall risk through an assessment of single-task (ST) and dual-task (DT) walking. This study investigated gait changes between ST and DT walking and between older adult prospective fallers and non-fallers. The results were compared to a study based on retrospective fall occurrence. Seventy-five individuals (75.2 ± 6.6 years; 47 non-fallers, 28 fallers; 6 month prospective fall occurrence) walked 7...
April 21, 2018: Sensors
https://www.readbyqxmd.com/read/29674287/self-perceived-gait-stability-modulates-the-effect-of-daily-life-gait-quality-on-prospective-falls-in-older-adults
#7
R H A Weijer, M J M Hoozemans, J H van Dieën, M Pijnappels
BACKGROUND: Quality of gait during daily life activities and perceived gait stability are both independent risk factors for future falls in older adults. RESEARCH QUESTION: We investigated whether perceived gait stability modulates the association between gait quality and falling in older adults. METHODS: In this prospective cohort study, we used one-week daily-life trunk acceleration data of 272 adults over 65 years of age. Sample entropy (SE) of the 3D acceleration signals was calculated to quantify daily life gait quality...
April 4, 2018: Gait & Posture
https://www.readbyqxmd.com/read/29621156/real-life-real-time-elderly-fall-detection-with-a-triaxial-accelerometer
#8
Angela Sucerquia, José David López, Jesús Francisco Vargas-Bonilla
The consequences of a fall on an elderly person can be reduced if the accident is attended by medical personnel within the first hour. Independent elderly people often stay alone for long periods of time, being in more risk if they suffer a fall. The literature offers several approaches for detecting falls with embedded devices or smartphones using a triaxial accelerometer. Most of these approaches have not been tested with the target population or cannot be feasibly implemented in real-life conditions. In this work, we propose a fall detection methodology based on a non-linear classification feature and a Kalman filter with a periodicity detector to reduce the false positive rate...
April 5, 2018: Sensors
https://www.readbyqxmd.com/read/29620637/decreased-postural-control-in-people-with-moderate-hearing-loss
#9
Ewan Thomas, Francesco Martines, Antonino Bianco, Giuseppe Messina, Valerio Giustino, Daniele Zangla, Angelo Iovane, Antonio Palma
Balance is a complex process that involves multiple sensory integrations. The auditory, visual, and vestibular systems are the main contributors. Hearing loss or hearing impairment may induce inappropriate postural strategies that could affect balance and therefore increase the risk of falling.The aim of this study was to understand whether hearing loss could influence balance, cervical posture, and muscle activation in the cervical region.Thirteen patients (61 ± 13 years; 161.8 ± 11.0 cm; 70.5 ± 15...
April 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29474851/active-learning-improves-on-task-behaviors-in-4th-grade-children
#10
J B Bartholomew, N M Golaszewski, E Jowers, E Korinek, G Roberts, A Fall, S Vaughn
While increased opportunities for physical activity (PA) are a critical, public health need for children, school-based interventions often place teachers in the position to choose between PA and time spent on academic lessons. Active learning is designed to overcome this by combining PA with academic material. Moreover, teachers are likely to be more responsive to change in academic-related outcomes than in PA. This study utilizes a large, cluster randomized control trial in which student attention, or time on task (TOT) and accelerometer-based PA is assessed in conjunction with active learning...
June 2018: Preventive Medicine
https://www.readbyqxmd.com/read/29452755/machine-learning-algorithms-based-on-signals-from-a-single-wearable-inertial-sensor-can-detect-surface-and-age-related-differences-in-walking
#11
B Hu, P C Dixon, J V Jacobs, J T Dennerlein, J M Schiffman
The aim of this study was to investigate if a machine learning algorithm utilizing triaxial accelerometer, gyroscope, and magnetometer data from an inertial motion unit (IMU) could detect surface- and age-related differences in walking. Seventeen older (71.5 ± 4.2 years) and eighteen young (27.0 ± 4.7 years) healthy adults walked over flat and uneven brick surfaces wearing an inertial measurement unit (IMU) over the L5 vertebra. IMU data were binned into smaller data segments using 4-s sliding windows with 1-s step lengths...
April 11, 2018: Journal of Biomechanics
https://www.readbyqxmd.com/read/29421606/longitudinal-associations-between-serum-25-hydroxyvitamin-d-physical-activity-knee-pain-and-dysfunction-and-physiological-falls-risk-in-community-dwelling-older-adults
#12
Saliu Balogun, Tania Winzenberg, Karen Wills, David Scott, Graeme Jones, Michele Callisaya, Dawn Aitken
AIMS: To describe the longitudinal associations between physiological falls risk, and between-person and within-person effects of 25-hydroxyvitamin D (25OHD), physical activity (PA), knee pain and dysfunction in community-dwelling older people. METHODS: Data for 1053 participants (51% women; mean age 63 ± 7.4 years) studied at baseline, 2.5, 5, and 10 years were analysed. Falls risk (Z-score) was measured using the Physiological Profile Assessment. Knee pain and dysfunction were assessed using the Western Ontario and McMaster Universities Osteoarthritis index (WOMAC)...
April 2018: Experimental Gerontology
https://www.readbyqxmd.com/read/29394317/everyday-stepping-quantity-and-quality-among-older-adult-fallers-with-and-without-mild-cognitive-impairment-initial-evidence-for-new-motor-markers-of-cognitive-deficits
#13
Jeffrey M Hausdorff, Inbar Hillel, Shiran Shustak, Silvia Del Din, Esther M J Bekkers, Elisa Pelosin, Freek Nieuwhof, Lynn Rochester, Anat Mirelman
Background: Recent work demonstrated that the gait of people with mild cognitive impairment (MCI) differs from that of age-matched controls and, in general, that walking ability, as measured in the clinic, does not necessarily reflect actual, daily performance. We evaluated if the quantity and quality of everyday walking (ie, community ambulation) differs in older adults with MCI, compared to age-matched controls. Methods: Inclusion criteria included: age 65-90 years, able to walk at least 5 minutes unassisted, and ≥2 falls in the past 6 months...
October 8, 2017: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/29384813/detection-of-near-falls-using-wearable-devices-a-systematic-review
#14
Ivan Pang, Yoshiro Okubo, Daina Sturnieks, Stephen R Lord, Matthew A Brodie
BACKGROUND AND PURPOSE: Falls among older people are a serious health issue. Remote detection of near falls may provide a new way to identify older people at high risk of falling. This could enable exercise and fall prevention programs to target the types of near falls experienced and the situations that cause near falls before fall-related injuries occur. The purpose of this systematic review was to summarize and critically examine the evidence regarding the detection of near falls (slips, trips, stumbles, missteps, incorrect weight transfer, or temporary loss of balance) using wearable devices...
January 30, 2018: Journal of Geriatric Physical Therapy
https://www.readbyqxmd.com/read/29300849/analysis-of-free-living-gait-in-older-adults-with-and-without-parkinson-s-disease-and-with-and-without-a-history-of-falls-identifying-generic-and-disease-specific-characteristics
#15
Silvia Del Din, Brook Galna, Alan Godfrey, Esther Mj Bekkers, Elisa Pelosin, Freek Nieuwhof, Anat Mirelman, Jeffrey M Hausdorff, Lynn Rochester
Background: Falls are associated with gait impairments in older adults (OA) and Parkinson's disease (PD). Current approaches for evaluating falls risk are based on self-report or one-time assessment and may be suboptimal. Wearable technology allows gait to be measured continuously in free-living conditions. The aim of this study was to explore generic and specific associations in free-living gait in fallers and non-fallers with and without PD. Methods: 277 fallers (155 PD, 122 older adults (OA)) who fell twice or more in the previous 6 months and 65 non-fallers (15 PD, 50 OA) were tested...
December 30, 2017: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/29219077/cross-sectional-associations-between-sleep-duration-sedentary-time-physical-activity-and-adiposity-indicators-among-canadian-preschool-aged-children-using-compositional-analyses
#16
Valerie Carson, Mark S Tremblay, Sebastien F M Chastin
BACKGROUND: Sleep duration, sedentary behaviour, and physical activity are three co-dependent behaviours that fall on the movement/non-movement intensity continuum. Compositional data analyses provide an appropriate method for analyzing the association between co-dependent movement behaviour data and health indicators. The objectives of this study were to examine: (1) the combined associations of the composition of time spent in sleep, sedentary behaviour, light-intensity physical activity (LPA), and moderate- to vigorous-intensity physical activity (MVPA) with adiposity indicators; and (2) the association of the time spent in sleep, sedentary behaviour, LPA, or MVPA with adiposity indicators relative to the time spent in the other behaviours in a representative sample of Canadian preschool-aged children...
November 20, 2017: BMC Public Health
https://www.readbyqxmd.com/read/29179052/using-phone-sensors-and-an-artificial-neural-network-to-detect-gait-changes-during-drinking-episodes-in-the-natural-environment
#17
Brian Suffoletto, Pedram Gharani, Tammy Chung, Hassan Karimi
BACKGROUND: Phone sensors could be useful in assessing changes in gait that occur with alcohol consumption. This study determined (1) feasibility of collecting gait-related data during drinking occasions in the natural environment, and (2) how gait-related features measured by phone sensors relate to estimated blood alcohol concentration (eBAC). METHODS: Ten young adult heavy drinkers were prompted to complete a 5-step gait task every hour from 8pm to 12am over four consecutive weekends...
February 2018: Gait & Posture
https://www.readbyqxmd.com/read/29162078/a-tailored-counseling-and-home-based-rehabilitation-program-to-increase-physical-activity-and-improve-mobility-among-community-dwelling-older-people-after-hospitalization-protocol-of-a-randomized-controlled-trial
#18
K Turunen, L Aaltonen, J Kumpumäki, E Portegijs, S Keikkala, M-L Kinnunen, T Finni, S Sipilä, R Nikander
BACKGROUND: Physical activity (PA) decreases during hospitalization. In particular, the amount of PA engaged in by older people who are hospitalized following musculoskeletal injury is likely to be limited for months after discharge home. Given the importance of an active lifestyle for their recovery and the prevention of future adverse outcomes, there is clearly a need for interventions to increase PA. This article describes the protocol of a randomized controlled trial set up to investigate the effects of a physical activity oriented home rehabilitation program (ProPA) on PA and the restoration of mobility in community-dwelling older people...
November 21, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29107061/physical-activity-and-physical-fitness-of-nursing-home-residents-with-cognitive-impairment-a-pilot-study
#19
José Marmeleira, Soraia Ferreira, Armando Raimundo
Physical activity and physical fitness are important for health, functional mobility and performance of everyday activities. To date, little attention has been given to physical activity and physical fitness among nursing home residents with cognitive impairment. Therefore, the main aim of this study was to examine physical activity behavior and physical fitness of institutionalized older adults with cognitive impairment and to investigate their interrelations. Forty-eight older adults with cognitive impairment (83...
December 15, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/29060728/linear-sigmoidal-modelling-of-accelerometer-features-and-tinetti-score-for-automatic-fall-risk-assessment
#20
Massimo W Rivolta, Roberto Sassi
Falling in elderly is a worldwide major problem and it can lead to severe injuries or death. Despite the effort made to ensure home environments safe and foster healthy lifestyles, it is still necessary to provide methodologies that can be used at home for detect risk factors associated with falls. In this study, we proposed a new simple non-linear model, i.e., Linear-Sigmoidal model (LS), easy to fit and simple to interpret, used to model accelerometer features and outcome of the clinical scale Tinetti (clinical scale for fall risk prediction)...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
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