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dual task tug

Moacir Ponti, Patricia Bet, Caroline L Oliveira, Paula C Castro
Devices and sensors for identification of fallers can be used to implement actions to prevent falls and to allow the elderly to live an independent life while reducing the long-term care costs. In this study we aimed to investigate the accuracy of Timed Up and Go test, for fallers' identification, using fusion of features extracted from accelerometer data. Single and dual tasks TUG (manual and cognitive) were performed by a final sample (94% power) of 36 community dwelling healthy older persons (18 fallers paired with 18 non-fallers) while they wear a single triaxial accelerometer at waist with sampling rate of 200Hz...
2017: PloS One
Nen Saito, Kunihiko Kaneko
Protein motors, such as kinesins and dyneins, bind to a microtubule and travel along it in a specific direction. Previously, it was thought that the directionality for a given motor was constant in the absence of an external force. However, the directionality of the kinesin-5 Cin8 was recently found to change as the number of motors that bind to the same microtubule is increased. Here, we introduce a simple mechanical model of a microtubule-sliding assay in which multiple motors interact with the filament. We show that, due to the collective phenomenon, the directionality of the motor changes (e...
March 10, 2017: Scientific Reports
Eric Anson, Elizabeth Thompson, Brian L Odle, John Jeka, Zachary F Walls, Peter C Panus
BACKGROUND AND PURPOSE: The adverse effects of drugs may influence results on tests of mobility and balance, but the drug-specific impact is not identified when using these tests. We propose that a quantitative drug index (QDI) will assist in assessing fall risk based on these tests, when combined with other fall risk variables. METHODS: Fifty-seven community-dwelling older adults who could walk independently on a treadmill and had Mini-Mental State Examination (MMSE) scores equal to or greater than 24 participated...
January 10, 2017: Journal of Geriatric Physical Therapy
Sheila de Melo Borges, Márcia Radanovic, Orestes Vicente Forlenza
Association between cognitive impairment and gait performance occurs in mild cognitive impairment (MCI) and Alzheimer's disease (AD), particularly under "divided attention" conditions, leading to a greater risk of falls. We studied 36 controls, 42 MCI, and 26 mild AD patients, using the Timed Up-and-Go test (TUG) under four conditions: TUG single - TUG1; TUG cognitive - TUG2; TUG manual -TUG3; TUG cognitive and manual - TUG4. Cognition was assessed using the MMSE, SKT, Exit25, and TMT (A and B). We found significant correlations between cognitive scores and TUG2 [r values (MMSE: -0...
December 9, 2016: Neuropsychology, Development, and Cognition. Section B, Aging, Neuropsychology and Cognition
Pierre Decavel, Thierry Moulin, Yoshimasa Sagawa
OBJECTIVE: Gait disorders is the most common and disabling dysfunction in patient with multiple sclerosis (PwMS). Several studies have been using gait parameters to determine the interventional effects in PwMS. However, few studies interested initially to determine reproducibility of these parameters which could overestimate effects. The aim of the study was to examine the reproducibility in different spatio-temporal parameters of gait measured during short and long distances. MATERIAL/PATIENTS AND METHODS: Fifty-eight PwMS (EDSS 4-7) and 19 healthy peers were included in this study...
September 2016: Annals of Physical and Rehabilitation Medicine
Marianna Capecci, Lucia Pepa, Federica Verdini, Maria Gabriella Ceravolo
INTRODUCTION: The freezing of gait (FOG) is a common and highly distressing motor symptom in patients with Parkinson's Disease (PD). Effective management of FOG is difficult given its episodic nature, heterogeneous manifestation and limited responsiveness to drug treatment. METHODS: In order to verify the acceptance of a smartphone-based architecture and its reliability at detecting FOG in real-time, we studied 20 patients suffering from PD-related FOG. They were asked to perform video-recorded Timed Up and Go (TUG) test with and without dual-tasks while wearing the smartphone...
August 21, 2016: Gait & Posture
Charlotte Cardon-Verbecq, Marine Loustau, Emilie Guitard, Marie Bonduelle, Emmanuelle Delahaye, Pierre Koskas, Agathe Raynaud-Simon
BACKGROUND: The cognitive timed up-and-go dual task (CogTUG) has been proposed to improve the performance of the timed up-and-go (TUG) test for predicting falls in older patients and as a screening tool for early detection of frailty. We aimed to determine whether the CogTUG score is associated with a history of falls in frail older outpatients with gait disorders. METHODS: This retrospective study involved outpatients >75 years old with or without previous falls who were admitted from 2012 to 2014 to a geriatric day hospital for gait disorders...
April 2017: Annals of Physical and Rehabilitation Medicine
Swati Paranjape, Disha Chitalia
Timed UP and Go Test (TUG) is conventionally used as predictor of falls in adults. Routine daily activities include multiple tasks performed concurrently. When two or more tasks (Dual/Triple test) needed to be carried out concurrently, task performance declined at least in one of them. Our study aimed to find temporal and demographic variations in the performance after adding a cognitive, motor or both tasks, while performing TUG, compared to performance during conventional TUG. Sixty randomly selected healthy adults, with age ranging from 53 to 90 years, consented to participate in the study...
2016: Curēus
Erin Smith, Lorcan Walsh, Julie Doyle, Barry Greene, Catherine Blake
AIM: The Timed Up and Go test (TUG) is used as a measure of functional ability in older adults; however, the method of measurement does not allow us to determine which aspects of the test deficits occur in. The aim of the present study was to examine the ability of the quantitative TUG (QTUG) to measure performance during the TUG test under three different conditions - single task, motor task and cognitive dual task - and to compare performance between fallers and non-fallers in high-functioning community-dwelling older adults...
July 18, 2016: Geriatrics & Gerontology International
H E Konak, S Kibar, E S Ergin
Osteoporosis is a serious disease characterized by muscle weakness in the lower extremities, shortened length of trunk, and increased dorsal kyphosis leading to poor balance performance. Although balance impairment increases in adults with osteoporosis, falls and fall-related injuries have been shown to occur mainly during the dual-task performance. Several studies have shown that dual-task performance was improved with specific repetitive dual-task exercises. INTRODUCTION: The aims of this study were to compare the effect of single- and dual-task balance exercise programs on static balance, dynamic balance, and activity-specific balance confidence in adults with osteoporosis and to assess the effectiveness of dual-task balance training on gait speed under dual-task conditions...
November 2016: Osteoporosis International
Maayan Agmon, Galit Armon
BACKGROUND: Falls among the elderly are a major public health challenge. The Timed-Up and Go (TUG) test is commonly used to identify older adults with mobility limitations. This study explored the association between TUG test results and personality among community-dwelling older adults. METHODS: This cross-sectional study included 85 older adults. Personality was evaluated with the Five Factor Model. Times to complete the TUG as a single task (TUGST) alone and also with an additional cognitive task i...
May 18, 2016: BMC Geriatrics
Chad Swank, Jyutika Mehta, Christina Criminger
BACKGROUND: Parkinson's disease (PD) progressively impairs motor and cognitive function. Gait dysfunction in PD is exacerbated during dual task gait. Transcranial direct current stimulation (tDCS) may therapeutically benefit motor and cognitive deficits. We examined the effect of a bilateral tDCS protocol on dual task gait in people with PD. MATERIAL AND METHODS: Participants with PD between 50 and 80 years received two sessions of tDCS protocol (1 active, 1 sham) separated by 7days...
July 28, 2016: Neuroscience Letters
Marie-Cécile Nierat, Suela Demiri, Elise Dupuis-Lozeron, Gilles Allali, Capucine Morélot-Panzini, Thomas Similowski, Dan Adler
Human breathing stems from automatic brainstem neural processes. It can also be operated by cortico-subcortical networks, especially when breathing becomes uncomfortable because of external or internal inspiratory loads. How the "irruption of breathing into consciousness" interacts with cognition remains unclear, but a case report in a patient with defective automatic breathing (Ondine's curse syndrome) has shown that there was a cognitive cost of breathing when the respiratory cortical networks were engaged...
2016: PloS One
Lindsay S Nagamatsu, C Liang Hsu, Michelle W Voss, Alison Chan, Niousha Bolandzadeh, Todd C Handy, Peter Graf, B Lynn Beattie, Teresa Liu-Ambrose
Falls are a major health-care concern, and while dual-task performance is widely recognized as being impaired in those at-risk for falls, the underlying neurocognitive mechanisms remain unknown. A better understanding of the underlying mechanisms could lead to the refinement and development of behavioral, cognitive, or neuropharmacological interventions for falls prevention. Therefore, we conducted a cross-sectional study with community-dwelling older adults aged 70-80 years with a history of falls (i.e., two or more falls in the past 12 months) or no history of falls (i...
2016: Frontiers in Aging Neuroscience
Eduardo L Cadore, Alvaro Casas-Herrero, Fabricio Zambom-Ferraresi, Alicia Martínez-Ramírez, Nora Millor, Marisol Gómez, Ana B Bays Moneo, Mikel Izquierdo
The objective of this study was to investigate dual-task costs in several elderly populations, including robust oldest old, frail oldest old with MCI, frail oldest old without MCI, and frail elderly with dementia. Sixty-four elderly men and women categorized into frail without MCI (age 93.4 ± 3.2 years, n = 20), frail with MCI (age 92.4 ± 4.2 years, n = 13), robust (age 88.2 ± 4.1 years, n = 10), and patients with dementia (age 88.1 ± 5.1 years, n = 21). Five-meter gait ability and timed-up-and-go (TUG) tests with single and dual-task performance were assessed in the groups...
December 2015: Age (2005-)
Erin Smith, Lorcan Walsh, Julie Doyle, Barry Greene, Catherine Blake
The timed up and go (TUG) test is a commonly used assessment in older people with variations including the addition of a motor or cognitive dual-task, however in high functioning older adults it is more difficult to assess change. The quantified TUG (QTUG) uses inertial sensors to detect test and gait parameters during the test. If it is to be used in the longitudinal assessment of older adults, it is important that we know which parameters are reliable and under which conditions. This study aims to examine the relative reliability of the QTUG over five consecutive days under single, motor and cognitive dual-task conditions...
January 2016: Gait & Posture
Irene S Wong-Yu, Margaret K Mak
OBJECTIVES: To investigate the short- and long-term effects of a task- and context-specific balance training program on dynamic balance and functional performance, and to explore the effects on preventing total and injurious falls in parkinsonian nonfallers. DESIGN: A randomized controlled trial with group allocation single-blinded to the assessor. SETTING: Community centers, malls, and outdoor parks. PARTICIPANTS: Nonfallers with Parkinson disease (PD) (N=70; mean age ± SD, 61...
December 2015: Archives of Physical Medicine and Rehabilitation
Frances A Batchelor, Susan B Williams, Tissa Wijeratne, Catherine M Said, Sandra Petty
BACKGROUND: There has been little research into gait and balance impairment in transient ischemic attack (TIA) and minor stroke, despite these conditions affecting large numbers of people and the potential impact on function. The aim of this study was to determine the impact of TIA and minor stroke on gait and balance. METHODS: Twelve people with TIA or minor stroke without previous gait/balance problems and 12 age- and sex-matched controls were recruited. Participants (mean age 67 years) underwent a comprehensive assessment including physiological, balance, and gait measures (clinical and computerized [NeuroCom/GAITRite])...
October 2015: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
Hiroki Kayama, Kazuya Okamoto, Shu Nishiguchi, Taiki Yukutake, Takanori Tanigawa, Koutatsu Nagai, Minoru Yamada, Tomoki Aoyama
OBJECTIVE: The purpose of this study was to demonstrate whether a 12-week program of training with dual-task Tai Chi (DTTC), which is a new concept game we developed using Kinect (Microsoft, Redmond, WA), would be effective in improving physical functions of fall risk factors. MATERIALS AND METHODS: This study examined balance, muscle strength, locomotive ability, and dual-task ability in community-dwelling older adults (75.4±6.3 years) before and after 12 weeks of DTTC training (training group [TG]; n=32) or standardized training (control group [CG]; n=41)...
August 2013: Games for Health
Hui-Ya Chen, Pei-Fang Tang
BACKGROUND: Dual-task Timed "Up & Go" (TUG) tests are likely to have applications different from those of a single-task TUG test and may have different contributing factors. OBJECTIVE: The purpose of this study was to compare factors contributing to performance on single- and dual-task TUG tests. DESIGN: This investigation was a cross-sectional study. METHODS: Sixty-four adults who were more than 50 years of age and dwelled in the community were recruited...
March 2016: Physical Therapy
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