scholarly journals Effects of a priority-based dual task on gait velocity and variability in older adults with mild cognitive impairment

2018 ◽  
Vol 14 (6) ◽  
pp. 993-997 ◽  
Author(s):  
Jihye Lee ◽  
Seungha Park
Keyword(s):  
Older Adults ◽  
Cognitive Impairment ◽  
Mild Cognitive Impairment ◽  
Dual Task ◽  
Gait Velocity ◽  
A Priority

Mild Cognitive Impairment Affects Obstacle Negotiation in Older Adults: Results from “Gait and Brain Study”

Gerontology ◽  
2018 ◽  
Vol 65 (2) ◽  
pp. 164-173 ◽  
Author(s):  
Frederico Pieruccini-Faria ◽  
Yanina Sarquis-Adamson ◽  
Manuel Montero-Odasso
Keyword(s):  
Older Adults ◽  
Cognitive Impairment ◽  
Executive Function ◽  
Mild Cognitive Impairment ◽  
Dual Task ◽  
Gait Speed ◽  
Step Length ◽  
Gait Control ◽  
Dual Tasking ◽  
Brain Study

Background: Older adults with Mild Cognitive Impairment (MCI) are at higher risk of falls and injuries, but the underlying mechanism is poorly understood. Inappropriate anticipatory postural adjustments to overcome balance perturbations are affected by cognitive decline. However, it is unknown whether anticipatory gait control to avoid an obstacle is affected in MCI. Objective: Using the dual-task paradigm, we aim to assess whether gait control is affected during obstacle negotiation challenges in older adults with MCI. Methods: Seventy-nine participants (mean age = 72.0 ± 2.7 years; women = 30.3%) from the “Gait and Brain Study” were included in this study (controls = 27; MCI = 52). In order to assess the anticipatory control behaviour for obstacle negotiation, a 6-m electronic walkway embedded with sensors recorded foot prints to measure gait speed and step length variability, during early (3 steps before the late phase) and late (3 steps before the obstacle) pre-crossing phases of an ad hoc obstacle, set at 15% of participant’s height. Participants walked under single- and dual-task gait (counting backwards by 1’s from 100 while walking) conditions. Three-way mixed repeated-measures analysis of variance models examined differences in gait performance between groups when transitioning between pre-crossing phases towards an obstacle during single- and dual-task conditions. Analyses were adjusted for age, sex, years of education, lower limb function, fear of falling, medical status, depressive symptoms, baseline gait speed and executive function. Results: A significant three-way interaction among groups, pre-crossing phases and task showed that participants with MCI attenuated the gait deceleration (p = 0.02) and performed fewer step length adjustments (p = 0.03) when approaching the obstacle compared with controls while dual-tasking. These interactions were attenuated when executive function performance was added as a covariate in the adjusted statistical model. Conclusion: Older adults with MCI attenuate the anticipatory gait adjustments needed to avoid an obstacle when dual-tasking. Deficits in higher-order cognitive processing may limit obstacle negotiation capabilities in MCI populations, being a potential falls risk factor.

Dual Task Gait Performance in Frail Individuals with and without Mild Cognitive Impairment

2016 ◽  
Vol 42 (1-2) ◽  
pp. 7-16 ◽  
Author(s):  
Alicia Martínez-Ramírez ◽  
Ion Martinikorena ◽  
Pablo Lecumberri ◽  
Marisol Gómez ◽  
Nora Millor ◽  
...  
Keyword(s):  
Cognitive Impairment ◽  
Mild Cognitive Impairment ◽  
Dual Task ◽  
Inertial Sensor ◽  
Strong Predictor ◽  
Oldest Old ◽  
Cognitive Status ◽  
Gait Velocity ◽  
Walking Performance ◽  
Walking Tests

Background: Several studies have stated that frailty is associated with cognitive impairment. Based on various studies, cognition impairment has been considered as a component of frailty. Other authors have shown that physical frailty is associated with low cognitive performance. Dual task gait tests are used as a strong predictor of falls in either dementia or frailty. Consequently, it is important to investigate dual task walking tests in elderly populations including control robust oldest old, frail oldest old with mild cognitive impairment (MCI) and frail oldest old without MCI. Methods: Dual task walking tests were carried out to examine the association between frailty and cognitive impairment in a population with advanced age. Forty-one elderly men and women participated in this study. The subjects from control, frail with MCI and frail without MCI groups, completed the 5-meter walk test at their own gait velocity. Arithmetic and verbal dual task walking performance was also assessed. Kinematic data were acquired from a unique tri-axial inertial sensor. Results: The spatiotemporal and frequency parameters related to gait disorders did not show any significant differences between frail with and without MCI groups. Conclusions: The evaluation of these parameters extracted from the acceleration signals led us to conclude that these results expand the knowledge regarding the common conditions in frailty and MCI and may highlight the idea that the impairment in walking performance does not depend of frailty and cognitive status.

scholarly journals Combining Transcranial Direct Current Stimulation With Tai Chi to Improve Dual-Task Gait Performance in Older Adults With Mild Cognitive Impairment: A Randomized Controlled Trial

2021 ◽  
Vol 13 ◽  
Author(s):  
Ying-Yi Liao ◽  
Mu-N Liu ◽  
Han-Cheng Wang ◽  
Vincent Walsh ◽  
Chi Ieong Lau
Keyword(s):  
Older Adults ◽  
Cognitive Impairment ◽  
Mild Cognitive Impairment ◽  
Direct Current ◽  
Dual Task ◽  
Transcranial Direct Current Stimulation ◽  
Tai Chi ◽  
Controlled Trial ◽  
Gait Performance ◽  
Direct Current Stimulation

Introduction: Engaging in a secondary task while walking increases motor-cognitive interference and exacerbates fall risk in older adults with mild cognitive impairment (MCI). Previous studies have demonstrated that Tai Chi (TC) may improve cognitive function and dual-task gait performance. Intriguingly, with emerging studies also indicating the potential of transcranial direct current stimulation (tDCS) in enhancing such motor-cognitive performance, whether combining tDCS with TC might be superior to TC alone is still unclear. The purpose of this study was to investigate the effects of combining tDCS with TC on dual-task gait in patients with MCI.Materials and Methods: Twenty patients with MCI were randomly assigned to receive either anodal or sham tDCS, both combined with TC, for 36 sessions over 12 weeks. Subjects received 40 min of TC training in each session. During the first 20 min, they simultaneously received either anodal or sham tDCS over the left dorsolateral prefrontal cortex. Outcome measures included dual-task gait performance and other cognitive functions.Results: There were significant interaction effects between groups on the cognitive dual task walking. Compared to sham, the anodal tDCS group demonstrated a greater improvement on cadence and dual task cost of speed.Conclusion: Combining tDCS with TC may offer additional benefits over TC alone in enhancing dual-task gait performance in patients with MCI.Clinical Trial Registration: [www.ClinicalTrials.gov], identifier [TCTR20201201007].

scholarly journals ASSOCIATIONS OF DUAL TASK EXERGAMING WITH COGNITIVE-MOTOR INTERFERENCE IN OLDER ADULTS WITH MILD COGNITIVE IMPAIRMENT: A SINGLE-ARM PILOT STUDY

2021 ◽  
pp. 1-7
Author(s):  
L. Kannan ◽  
T. Bhatt
Keyword(s):  
Older Adults ◽  
Cognitive Impairment ◽  
Mild Cognitive Impairment ◽  
Dual Task ◽  
Balance Control ◽  
Cognitive Task ◽  
Cognitive Tasks ◽  
Future Studies ◽  
Wii Fit ◽  
Sequencing Task

Purpose: To examine the feasibility and effectiveness of dual task (DT) exergaming to improve volitional balance control in older adults with mild cognitive impairment (MCI). Methods: Ten older adults with MCI were examined at baseline (week-0) and post-training (week-5) on volitional balance control (maximum excursion of center of gravity, MXE [%]) while performing cognitive task (auditory clock test or letter number sequencing task) and on the NIH-motor and cognitive toolboxes. DT exergaming training lasted for 12 sessions which consisted of performing explicit cognitive tasks while playing the Wii-Fit balance games. Results: From pre- to post-training, MXE improved (p<0.05); however, cognitive accuracy (cognitive task) remained the same (p>0.05). Improvement in NIH motor and cognitive toolbox tests was observed post-training (p<0.05). Conclusion: DT exergaming was associated to improvements in balance control under attention-demanding conditions in MCI. Future studies may focus on examining the efficacy of such training.

P3-306: Dual-task performance and neurocognitive functions in older adults with and without amnestic mild cognitive impairment

2011 ◽  
Vol 7 ◽  
pp. S614-S614
Author(s):  
Hyuma Makizako ◽  
Hiroyuki Shimada ◽  
Takao Suzuki ◽  
Takehiko Doi ◽  
Daisuke Yoshida ◽  
...  
Keyword(s):  
Older Adults ◽  
Cognitive Impairment ◽  
Mild Cognitive Impairment ◽  
Task Performance ◽  
Dual Task ◽  
Amnestic Mild Cognitive Impairment ◽  
Neurocognitive Functions ◽  
Dual Task Performance

Improving Sensitivity to Detect Mild Cognitive Impairment: Cognitive Load Dual-Task Gait Speed Assessment

2017 ◽  
Vol 23 (6) ◽  
pp. 493-501 ◽  
Author(s):  
Rebecca K. MacAulay ◽  
Mark T. Wagner ◽  
Dana Szeles ◽  
Nicholas J. Milano
Keyword(s):  
Older Adults ◽  
Cognitive Impairment ◽  
Mild Cognitive Impairment ◽  
Cognitive Load ◽  
Dual Task ◽  
Gait Speed ◽  
Cognitive Task ◽  
Executive Attention ◽  
Sensitive Measure ◽  
Gait Assessment

AbstractObjectives: Longitudinal research indicates that cognitive load dual-task gait assessment is predictive of cognitive decline and thus might provide a sensitive measure to screen for mild cognitive impairment (MCI). However, research among older adults being clinically evaluated for cognitive concerns, a defining feature of MCI, is lacking. The present study investigated the effect of performing a cognitive task on normal walking speed in patients presenting to a memory clinic with cognitive complaints. Methods: Sixty-one patients with a mean age of 68 years underwent comprehensive neuropsychological testing, clinical interview, and gait speed (simple- and dual-task conditions) assessments. Thirty-four of the 61 patients met criteria for MCI. Results: Repeated measure analyses of covariance revealed that greater age and MCI both significantly associated with slower gait speed, ps<.05. Follow-up analysis indicated that the MCI group had significantly slower dual-task gait speed but did not differ in simple-gait speed. Multivariate linear regression across groups found that executive attention performance accounted for 27.4% of the variance in dual-task gait speed beyond relevant demographic and health risk factors. Conclusions: The present study increases the external validity of dual-task gait assessment of MCI. Differences in dual-task gait speed appears to be largely attributable to executive attention processes. These findings have clinical implications as they demonstrate expected patterns of gait-brain behavior relationships in response to a cognitive dual task within a clinically representative population. Cognitive load dual-task gait assessment may provide a cost efficient and sensitive measure to detect older adults at high risk of a dementia disorder. (JINS, 2017, 23, 493–501)

Relationship between dual-task performance and neurocognitive measures in older adults with mild cognitive impairment

2012 ◽  
Vol 13 (2) ◽  
pp. 314-321 ◽  
Author(s):  
Hyuma Makizako ◽  
Takehiko Doi ◽  
Hiroyuki Shimada ◽  
Daisuke Yoshida ◽  
Yuko Takayama ◽  
...  
Keyword(s):  
Older Adults ◽  
Cognitive Impairment ◽  
Mild Cognitive Impairment ◽  
Task Performance ◽  
Dual Task ◽  
Dual Task Performance ◽  
Neurocognitive Measures
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