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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
#1
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
#2
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
#3
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...
November 22, 2017: 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
#4
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
#5
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...
October 31, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/29060728/linear-sigmoidal-modelling-of-accelerometer-features-and-tinetti-score-for-automatic-fall-risk-assessment
#6
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
https://www.readbyqxmd.com/read/29060322/accuracy-of-a-wavelet-based-fall-detection-approach-using-an-accelerometer-and-a-barometric-pressure-sensor
#7
Andreas Ejupi, Chantel Galang, Omar Aziz, Edward J Park, Stephen Robinovitch
GOAL: Falls are a major source of morbidity in older adults, and 50% of older adults who fall cannot rise independently after falling. Wearable sensor-based fall detection devices may assist in preventing long lies after falls. The goal of this study was to determine the accuracy of a novel wavelet-based approach to automatically detect falls based on accelerometer and barometric pressure sensor data. METHODS: Participants (n=15) mimicked a range of falls, near falls, and activities of daily living (ADLs) while wearing accelerometer and barometric pressure sensors on the lower back, chest, wrists and thighs...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/29059826/an-elderly-fall-detection-using-a-wrist-worn-accelerometer-and-barometer
#8
Prayook Jatesiktat, Wei Tech Ang
As the world population is growing toward an aging society, elderly fall becomes a serious problem. Automatic fall detection and alert systems could shorten their waiting time after a fall and mitigate its physical and mental negative consequences. This work proposes a method that integrates a 3-axis accelerometer and a barometer on a wrist-worn device for the fall detection task. The method focuses on the use of noisy signals from a barometer in both pre-processing steps and feature extractions. A use of free falling events to address the lack of training data in a learning process is also explored...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/29021127/fall-detection-in-individuals-with-lower-limb-amputations-using-mobile-phones-machine-learning-enhances-robustness-for-real-world-applications
#9
Nicholas Shawen, Luca Lonini, Chaithanya Krishna Mummidisetty, Ilona Shparii, Mark V Albert, Konrad Kording, Arun Jayaraman
BACKGROUND: Automatically detecting falls with mobile phones provides an opportunity for rapid response to injuries and better knowledge of what precipitated the fall and its consequences. This is beneficial for populations that are prone to falling, such as people with lower limb amputations. Prior studies have focused on fall detection in able-bodied individuals using data from a laboratory setting. Such approaches may provide a limited ability to detect falls in amputees and in real-world scenarios...
October 11, 2017: JMIR MHealth and UHealth
https://www.readbyqxmd.com/read/28946523/difference-in-trunk-stability-during-semicircular-turns-with-and-without-a-bag-in-elderly-women
#10
Sun-Shil Shin, Won-Gyu Yoo, Duk-Hyun An, Jae-Seop Oh, Ki-Song Kim, Tae-Ho Kim, Jong-Sang Choi
BACKGROUND: Direction changes while walking are more likely to cause a hip fracture than is falling while walking in a straight line. Trunk stability is an important contributor to safe and effective walking, and arm movements influence trunk movement while walking. However, the difference in the trunk stability during semicircular turns performed by elderly women with a light bag has not been examined. OBJECTIVE: To investigate the effects of carrying a bag on trunk stability during semicircular turns in elderly women...
September 22, 2017: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/28927304/initial-outcomes-of-a-participatory-based-competency-building-approach-to-increasing-physical-education-teachers-physical-activity-promotion-and-students-physical-activity-a-pilot-study
#11
R Glenn Weaver, Collin A Webster, Michael W Beets, Keith Brazendale, Jessica Chandler, Lauren Schisler, Mazen Aziz
This study examined the initial effects of a participatory-based, competency-/skill-building professional development workshop for physical education (PE) teachers on the use of physical activity (PA) promotion practices (e.g., eliminating lines, small-sided games) and students' moderate-to-vigorous physical activity (MVPA). A total of 823 students (52.8% boys) wore accelerometers at baseline (fall 2015) and outcome (spring 2016) on PE and non-PE days. The System for Observing Fitness Instruction Time+ measured changes in PA promotion practices...
September 1, 2017: Health Education & Behavior: the Official Publication of the Society for Public Health Education
https://www.readbyqxmd.com/read/28915202/objectively-measured-physical-activity-and-falls-in-well-functioning-older-adults-findings-from-the-baltimore-longitudinal-study-of-aging
#12
Anthony J Nastasi, Alka Ahuja, Vadim Zipunnikov, Eleanor M Simonsick, Luigi Ferrucci, Jennifer A Schrack
OBJECTIVE: Previous work demonstrates the consequences of falling in older adults and the potential of physical activity (PA) to reduce falls, but few studies have used accelerometer-measured PA to compare overall and time-of-day activity patterns of nonfallers, fallers, or subgroups of fallers. METHODS: In 840 participants (mean age, 66.7; s = 13.2; range, 26-97) of the Baltimore Longitudinal Study of Aging between 2007 and 2014, PA was measured objectively with Actiheart accelerometers and falling status (faller/nonfaller) was assessed during an in-person interview...
September 14, 2017: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/28902149/highly-portable-sensor-based-system-for-human-fall-monitoring
#13
Aihua Mao, Xuedong Ma, Yinan He, Jie Luo
Falls are a very dangerous situation especially among elderly people, because they may lead to fractures, concussion, and other injuries. Without timely rescue, falls may even endanger their lives. The existing optical sensor-based fall monitoring systems have some disadvantages, such as limited monitoring range and inconvenience to carry for users. Furthermore, the fall detection system based only on an accelerometer often mistakenly determines some activities of daily living (ADL) as falls, leading to low accuracy in fall detection...
September 13, 2017: Sensors
https://www.readbyqxmd.com/read/28755415/accelerometer-measured-moderate-to-vigorous-physical-activity-and-incidence-rates-of-falls-in-older-women
#14
David M Buchner, Eileen Rillamas-Sun, Chongzhi Di, Michael J LaMonte, Stephen W Marshall, Julie Hunt, Yuzheng Zhang, Dori E Rosenberg, I-Min Lee, Kelly R Evenson, Amy H Herring, Cora E Lewis, Marcia L Stefanick, Andrea Z LaCroix
OBJECTIVES: To examine whether moderate to vigorous physical activity (MVPA) measured using accelerometry is associated with incident falls and whether associations differ according to physical function or history of falls. DESIGN: Prospective study with baseline data collection from 2012 to 2014 and 1 year of follow-up. SETTING: Women's Health Initiative participants living in the United States. PARTICIPANTS: Ambulatory women aged 63 to 99 (N = 5,545)...
November 2017: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/28754662/shock-absorbing-aggregates-beneath-playground-equipment-grain-properties-and-moisture-content
#15
Tapani Jäniskangas, Kari P K Pylkkänen, Pauli Kolisoja
OBJECTIVES: To assess the influence of grain size distribution and moisture condition on aggregates' performance as an impact attenuation layer beneath playground equipment. SETTING AND METHODS: Impact attenuation of sands and gravels was tested using a guided headform with a uniaxial accelerometer inside. The result for impact attenuation was the acceleration value of the headform measured from four different drop heights and the Head Injury Criterion (HIC) calculated from it...
July 28, 2017: Injury Prevention: Journal of the International Society for Child and Adolescent Injury Prevention
https://www.readbyqxmd.com/read/28700633/effects-of-the-lateral-amplitude-and-regularity-of-upper-body-fluctuation-on-step-time-variability-evaluated-using-return-map-analysis
#16
Kazuhiro Chidori, Yuji Yamamoto
The aim of this study was to evaluate the effects of the lateral amplitude and regularity of upper body fluctuation on step time variability. Return map analysis was used to clarify the relationship between step time variability and a history of falling. Eleven healthy, community-dwelling older adults and twelve younger adults participated in the study. All of the subjects walked 25 m at a comfortable speed. Trunk acceleration was measured using triaxial accelerometers attached to the third lumbar vertebrae (L3) and the seventh cervical vertebrae (C7)...
2017: PloS One
https://www.readbyqxmd.com/read/28678808/validation-of-accuracy-of-svm-based-fall-detection-system-using-real-world-fall-and-non-fall-datasets
#17
Omar Aziz, Jochen Klenk, Lars Schwickert, Lorenzo Chiari, Clemens Becker, Edward J Park, Greg Mori, Stephen N Robinovitch
Falls are a major cause of injuries and deaths in older adults. Even when no injury occurs, about half of all older adults who fall are unable to get up without assistance. The extended period of lying on the floor often leads to medical complications, including muscle damage, dehydration, anxiety and fear of falling. Wearable sensor systems incorporating accelerometers and/or gyroscopes are designed to prevent long lies by automatically detecting and alerting care providers to the occurrence of a fall. Research groups have reported up to 100% accuracy in detecting falls in experimental settings...
2017: PloS One
https://www.readbyqxmd.com/read/28671116/motor-phenotype-in-neurodegenerative-disorders-gait-and-balance-platform-study-design-protocol-for-the-ontario-neurodegenerative-research-initiative-ondri
#18
Manuel Montero-Odasso, Frederico Pieruccini-Faria, Robert Bartha, Sandra E Black, Elizabeth Finger, Morris Freedman, Barry Greenberg, David A Grimes, Robert A Hegele, Christopher Hudson, Peter W Kleinstiver, Anthony E Lang, Mario Masellis, Paula M McLaughlin, Douglas P Munoz, Stephen Strother, Richard H Swartz, Sean Symons, Maria Carmela Tartaglia, Lorne Zinman, Michael J Strong, William McIlroy
BACKGROUND: The association of cognitive and motor impairments in Alzheimer's disease and other neurodegenerative diseases is thought to be related to damage in the common brain networks shared by cognitive and cortical motor control processes. These common brain networks play a pivotal role in selecting movements and postural synergies that meet an individual's needs. Pathology in this "highest level" of motor control produces abnormalities of gait and posture referred to as highest-level gait disorders...
2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28590432/faller-classification-in-older-adults-using-wearable-sensors-based-on-turn-and-straight-walking-accelerometer-based-features
#19
Dylan Drover, Jennifer Howcroft, Jonathan Kofman, Edward D Lemaire
Faller classification in elderly populations can facilitate preventative care before a fall occurs. A novel wearable-sensor based faller classification method for the elderly was developed using accelerometer-based features from straight walking and turns. Seventy-six older individuals (74.15 ± 7.0 years), categorized as prospective fallers and non-fallers, completed a six-minute walk test with accelerometers attached to their lower legs and pelvis. After segmenting straight and turn sections, cross validation tests were conducted on straight and turn walking features to assess classification performance...
June 7, 2017: Sensors
https://www.readbyqxmd.com/read/28559455/association-between-childcare-educators-practices-and-preschoolers-physical-activity-and-dietary-intake-a-cross-sectional-analysis
#20
Stéphanie Ward, Mathieu Blanger, Denise Donovan, Hassan Vatanparast, Nazeem Muhajarine, Rachel Engler-Stringer, Anne Leis, M Louise Humbert, Natalie Carrier
INTRODUCTION: Childcare educators may be role models for healthy eating and physical activity (PA) behaviours among young children. This study aimed to identify which childcare educators' practices are associated with preschoolers' dietary intake and PA levels. METHODS: This cross-sectional analysis included 723 preschoolers from 50 randomly selected childcare centres in two Canadian provinces. All data were collected in the fall of 2013 and 2014 and analysed in the fall of 2015...
May 30, 2017: BMJ Open
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