scholarly journals Influence of age on postural sway during different dual-task conditions

2014 ◽  
Vol 6 ◽  
Author(s):  
Marco Bergamin ◽  
Stefano Gobbo ◽  
Tobia Zanotto ◽  
John C. Sieverdes ◽  
Cristine L. Alberton ◽  
...  
Keyword(s):  
Dual Task ◽  
Postural Sway ◽  
Task Conditions

The Influence of Cognitive Dual Tasks on Concussion Balance Test Performance

Motor Control ◽  
2020 ◽  
pp. 1-12
Author(s):  
Nathan Morelli ◽  
Nicholas R. Heebner ◽  
Courtney J. DeFeo ◽  
Matthew C. Hoch
Keyword(s):  
Dual Task ◽  
Test Performance ◽  
Sensory Integration ◽  
Postural Sway ◽  
Clinical Tool ◽  
Dual Tasks ◽  
Balance Test ◽  
Concussion Recovery ◽  
Task Conditions ◽  
Head Rotations

Objective: To determine the influence of a cognitive dual task on postural sway and balance errors during the Concussion Balance Test (COBALT). Methods: Twenty healthy adults (12 females, eight males; aged 21.95 ± 3.77 years; height = 169.95 ± 9.95 cm; weight = 69.58 ± 15.03 kg) partook in this study and completed single- and dual-task versions of a reduced COBALT. Results: Sway velocity decreased during dual-task head rotations on foam condition (p = .021, ES = −0.57). A greater number of movement errors occurred during dual-task head rotations on firm surface (p = .005, ES = 0.71), visual field flow on firm surface (p = .008, ES = 0.68), and head rotations on foam surface (p < .001, ES = 1.61) compared with single-task conditions. Cognitive performance was preserved throughout different sensory conditions of the COBALT (p = .985). Discussion: Cognitive dual tasks influenced postural control and destabilized movements during conditions requiring advanced sensory integration and reweighting demands. Dual-task versions of the COBALT should be explored as a clinical tool to identify residual deficits past the acute stages of concussion recovery.

scholarly journals Reduced Sway During Dual Task Balance Performance Among People With Stroke at 6 and 12 Months After Discharge From Hospital

2009 ◽  
Vol 23 (8) ◽  
pp. 847-854 ◽  
Author(s):  
Dorit Hyndman ◽  
Ruth M. Pickering ◽  
Ann Ashburn
Keyword(s):  
Dual Task ◽  
Postural Sway ◽  
Force Plate ◽  
Balance Performance ◽  
Dual Task Condition ◽  
Eyes Closed ◽  
Balance Task ◽  
Balance Ability ◽  
Task Conditions ◽  
Discharge From Hospital

Background. Cognitive motor interference has been linked to poor recovery and falls. Little is known about recovery of dual-task balance ability poststroke. Methods. In this experimental study, postural sway was examined while standing on a force plate in preferred stance, with feet together, and with eyes closed, at 6 and 12 months postdischarge from hospital. Sway was assessed in isolation and while participants performed a cognitive (shopping list) task. Results . Seventy-six people with stroke (mean age 67 years; range, 21-91 years) took part. Fifty-four completed both assessments. When compared with the single task, sway during the dual-task condition was significantly lower in both the medial lateral (ML) and anterior posterior (AP) directions (both P < .0001). Sway in both directions was influenced by the difficulty of the balance task (both P < .0001). There was a trend of reduced sway at the 12-month assessment compared with the 6-month assessment: significant only in the ML direction ( P = .0056). Repeat fallers swayed more than non—repeat fallers, with increases of 48% and 44% in the ML ( P = .0262) and AP ( P = .0134) directions, respectively. No significant variation in the dual-task reduction in sway was found: the dual-task effect was remarkably consistent over all the conditions tested, particularly in the AP direction. Conclusions. Sway decreased under dual-task conditions and changed as the difficulty of the balance task changed. Stroke fallers swayed more than nonfallers and there was evidence of a reduction in sway over time, particularly in the ML direction.

scholarly journals Behavioral and Neural Correlates of Cognitive-Motor Interference during Multitasking in Young and Old Adults

2019 ◽  
Vol 2019 ◽  
pp. 1-19 ◽  
Author(s):  
Hannah Bohle ◽  
Jérôme Rimpel ◽  
Gesche Schauenburg ◽  
Arnd Gebel ◽  
Christine Stelzel ◽  
...  
Keyword(s):  
Dual Task ◽  
Task Difficulty ◽  
Postural Sway ◽  
Task Condition ◽  
Dual Tasks ◽  
Old Adults ◽  
Age Related ◽  
Dual Task Performance ◽  
Task Conditions ◽  
Postural Task

The concurrent performance of cognitive and postural tasks is particularly impaired in old adults and associated with an increased risk of falls. Biological aging of the cognitive and postural control system appears to be responsible for increased cognitive-motor interference effects. We examined neural and behavioral markers of motor-cognitive dual-task performance in young and old adults performing spatial one-back working memory single and dual tasks during semitandem stance. On the neural level, we used EEG to test for age-related modulations in the frequency domain related to cognitive-postural task load. Twenty-eight healthy young and 30 old adults participated in this study. The tasks included a postural single task, a cognitive-postural dual task, and a cognitive-postural triple task (cognitive dual-task with postural demands). Postural sway (i.e., total center of pressure displacements) was recorded in semistance position on an unstable surface that was placed on top of a force plate while performing cognitive tasks. Neural activation was recorded using a 64-channel mobile EEG system. EEG frequencies were attenuated by the baseline postural single-task condition and demarcated in nine Regions-of-Interest (ROIs), i.e., anterior, central, posterior, over the cortical midline, and both hemispheres. Our findings revealed impaired cognitive dual-task performance in old compared to young participants in the form of significantly lower cognitive performance in the triple-task condition. Furthermore, old adults compared with young adults showed significantly larger postural sway, especially in cognitive-postural task conditions. With respect to EEG frequencies, young compared to old participants showed significantly lower alpha-band activity in cognitive-cognitive-postural triple-task conditions compared with cognitive-postural dual tasks. In addition, with increasing task difficulty, we observed synchronized theta and delta frequencies, irrespective of age. Task-dependent alterations of the alpha frequency band were most pronounced over frontal and central ROIs, while alterations of the theta and delta frequency bands were found in frontal, central, and posterior ROIs. Theta and delta synchronization exhibited a decrease from anterior to posterior regions. For old adults, task difficulty was reflected by theta synchronization in the posterior ROI. For young adults, it was reflected by alpha desynchronization in bilateral anterior ROIs. In addition, we could not identify any effects of task difficulty and age on the beta frequency band. Our results shed light on age-related cognitive and postural declines and how they interact. Modulated alpha frequencies during high cognitive-postural task demands in young but not old adults might be reflective of a constrained neural adaptive potential in old adults. Future studies are needed to elucidate associations between the identified age-related performance decrements with task difficulty and changes in brain activity.

Effects of Concurrent Manual Task Performance on Connected Speech Acoustics in Individuals With Parkinson Disease

2019 ◽  
Vol 62 (7) ◽  
pp. 2099-2117 ◽  
Author(s):  
Jason A. Whitfield ◽  
Zoe Kriegel ◽  
Adam M. Fullenkamp ◽  
Daryush D. Mehta
Keyword(s):  
Task Performance ◽  
Speech Production ◽  
Dual Task ◽  
Motor Task ◽  
Task Condition ◽  
Connected Speech ◽  
Speech Acoustics ◽  
Single Task ◽  
Manual Task ◽  
Task Conditions

Purpose Prior investigations suggest that simultaneous performance of more than 1 motor-oriented task may exacerbate speech motor deficits in individuals with Parkinson disease (PD). The purpose of the current investigation was to examine the extent to which performing a low-demand manual task affected the connected speech in individuals with and without PD. Method Individuals with PD and neurologically healthy controls performed speech tasks (reading and extemporaneous speech tasks) and an oscillatory manual task (a counterclockwise circle-drawing task) in isolation (single-task condition) and concurrently (dual-task condition). Results Relative to speech task performance, no changes in speech acoustics were observed for either group when the low-demand motor task was performed with the concurrent reading tasks. Speakers with PD exhibited a significant decrease in pause duration between the single-task (speech only) and dual-task conditions for the extemporaneous speech task, whereas control participants did not exhibit changes in any speech production variable between the single- and dual-task conditions. Conclusions Overall, there were little to no changes in speech production when a low-demand oscillatory motor task was performed with concurrent reading. For the extemporaneous task, however, individuals with PD exhibited significant changes when the speech and manual tasks were performed concurrently, a pattern that was not observed for control speakers. Supplemental Material https://doi.org/10.23641/asha.8637008

Deficits in Selective Attention Alter Gait in Frail Older Adults

GeroPsych ◽  
2016 ◽  
Vol 29 (1) ◽  
pp. 29-36 ◽  
Author(s):  
Véronique Cornu ◽  
Jean-Paul Steinmetz ◽  
Carine Federspiel
Keyword(s):  
Older Adults ◽  
Nursing Home ◽  
Selective Attention ◽  
Dual Task ◽  
Nursing Home Residents ◽  
Gait Rehabilitation ◽  
Rehabilitation Programs ◽  
Gait Parameters ◽  
Growing Body ◽  
Task Conditions

Abstract. A growing body of research demonstrates an association between gait disorders, falls, and attentional capacities in older adults. The present work empirically analyzes differences in gait parameters in frail institutionalized older adults as a function of selective attention. Gait analysis under single- and dual-task conditions as well as selective attention measures were collected from a total of 33 nursing-home residents. We found that differences in selective attention performances were related to the investigated gait parameters. Poorer selective attention performances were associated with higher stride-to-stride variabilities and a slowing of gait speed under dual-task conditions. The present findings suggest a contribution of selective attention to a safe gait. Implications for gait rehabilitation programs are discussed.

Performance Enhancements Under Dual-Task Conditions

1984 ◽  
Author(s):  
Arthur F. Kramer ◽  
Christopher D. Wickens ◽  
Emanuel Donchin
Keyword(s):  
Dual Task ◽  
Task Conditions

Spatial location priming under single and dual-task conditions

1997 ◽  
Author(s):  
Gail Musen ◽  
Sumanas Siripant ◽  
Lori Boncher
Keyword(s):  
Dual Task ◽  
Spatial Location ◽  
Task Conditions

scholarly journals Association of Affect and Gait Performance in Dual-Task Walking in Non-Demented Older Adults

2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 287-287
Author(s):  
Deepan Guharajan ◽  
Roee Holtzer
Keyword(s):  
Older Adults ◽  
Negative Affect ◽  
Positive Affect ◽  
Dual Task ◽  
Task Demands ◽  
Gait Velocity ◽  
Positive And Negative Affect ◽  
Increased Risk ◽  
Aging Populations ◽  
Task Conditions

Abstract Aging populations are at increased risk to experience mobility disability, which is associated with falls, frailty, and mortality. Previous studies have not examined the concurrent associations of both positive and negative affect with gait velocity. We examined whether individual differences in positive and negative affect predicted dual-task performance decrements in velocity in a dual-task (DT) paradigm in non-demented older adults. We hypothesize that positive affect would be associated with lower DT costs, and negative affect would be associated with higher DT costs. Participants (N = 403; mean age, = 76.22 (6.55); females = 56%) completed the Positive and Negative Affect Schedule (PANAS) and a DT paradigm that involved three task conditions: Single-Task-Walk (STW), Alpha (cognitive interference requiring participants to recite alternate letters of the alphabet), and Dual-Task-Walk (DTW) requiring participant to perform the two single tasks concurrently. Gait velocity was assessed via an instrumented walkway. As expected, results of a linear mixed effects model (LME) showed a significant decline in gait velocity (cm/s) from STW to DTW (estimate = -11.79; 95%CI = -12.82 to -10.77). LME results further revealed that negative affect was associated with greater decline in gait velocity from STW to DTW (ie., worse DT cost) (estimate = -0.38; 95%CI = -0.73 to -0.03). Positive affect did not, however, predict DT costs in gait velocity (estimate = -0.09; 95%CI = -0.23 to 0.05). These findings suggest that increased negative affect interferes with the allocation of attentional resources to competing task demands inherent in the DT paradigm.

scholarly journals Spatio-temporal gait parameters obtained from foot-worn inertial sensors are reliable in healthy adults in single- and dual-task conditions

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
J. Soulard ◽  
J. Vaillant ◽  
R. Balaguier ◽  
N. Vuillerme
Keyword(s):  
Dual Task ◽  
Inertial Sensors ◽  
Healthy Adults ◽  
Gait Symmetry ◽  
Symmetry Index ◽  
Task Effects ◽  
Gait Parameters ◽  
Task Conditions ◽  
Healthy Participants ◽  
Absolute Reliability

AbstractInertial measurement units (IMUs) are increasingly popular and may be usable in clinical routine to assess gait. However, assessing their intra-session reliability is crucial and has not been tested with foot-worn sensors in healthy participants. The aim of this study was to assess the intra-session reliability of foot-worn IMUs for measuring gait parameters in healthy adults. Twenty healthy participants were enrolled in the study and performed the 10-m walk test in single- and dual-task ('carrying a full cup of water') conditions, three trials per condition. IMUs were used to assess spatiotemporal gait parameters, gait symmetry parameters (symmetry index (SI) and symmetry ratio (SR)), and dual task effects parameters. The relative and the absolute reliability were calculated for each gait parameter. Results showed that spatiotemporal gait parameters measured with foot-worn inertial sensors were reliable; symmetry gait parameters relative reliability was low, and SR showed better absolute reliability than SI; dual task effects were poorly reliable, and taking the mean of the second and the third trials was the most reliable. Foot-worn IMUs are reliable to assess spatiotemporal and symmetry ratio gait parameters but symmetry index and DTE gait parameters reliabilities were low and need to be interpreted with cautious by clinicians and researchers.

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