Effects of Cognitive Task Type and Complexity on Dual-Task Interference During Level-Ground Walking and Obstacle Negotiation in Individuals with Stroke.
Background: Compromised dual-task walking ability reduces functional independence in community-dwelling individuals after stroke. Objective. To examine the influence of mobility task and cognitive task type and complexity, and their interaction on dual-task level-ground walking and obstacle-crossing...
| Publicado en: | Neurorehabilitation & Neural Repair Vol. 39; no. 8; pp. 624 - 639 |
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| Autores principales: | , , , |
| Formato: | equations & formulas research tables/charts Journal Article |
| Publicado: |
Sage Publications Inc.
Aug2025
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=187099235&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 187099235 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 15459683 IRK jtl: Neurorehabilitation & Neural Repair issn: 15459683 maglogo: Y pubinfo: dt: Aug2025 vid: 39 iid: 8 pid: 344 pub: Sage Publications Inc. place: Thousand Oaks, California artinfo: ui: 187099235 185529239 187099235 187099235 10.1177/15459683251340930 187099235 ppf: 624 ppct: 15 formats: tig: atl: Effects of Cognitive Task Type and Complexity on Dual-Task Interference During Level-Ground Walking and Obstacle Negotiation in Individuals with Stroke. aug: au: Tsang, Charlotte Sau Lan Ouyang, Huixi Miller, Tiev Pang, Marco Yiu Chung affil: Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Kowloon, Hong Kong sug: subj: Cognition Walking Physiology Stroke Complications Executive Function Task Performance and Analysis Psychomotor Performance Stroke Psychosocial Factors Community Living Attention Human Stroke Patients Funding Source Middle Age Aged Disease Duration Nonexperimental Studies Repeated Measures Descriptive Statistics Middle Aged: 45-64 years Aged: 65+ years ab: Background: Compromised dual-task walking ability reduces functional independence in community-dwelling individuals after stroke. Objective. To examine the influence of mobility task and cognitive task type and complexity, and their interaction on dual-task level-ground walking and obstacle-crossing after stroke. Methods: Ninety-three individuals with chronic stroke (mean [SD] age = 62.4 [6.7] years, stroke duration = 67.7 [53.5] months) participated in this observational study with repeated measures. For each dual-task testing condition, a mobility task (level-ground walking or obstacle-crossing) was performed concurrently with 1 of 5 cognitive tasks (serial-subtractions, category naming, clock test, auditory discrimination, and shopping-list recall). Each cognitive task involved low and high complexity levels, yielding 20 dual-task conditions in total. Dual-task effect (DTE = [single-task − dual-task]× 100 /single-task) on walking distance (mobility-DTE) and number of correct responses (cognitive-DTE) were calculated for each dual-task condition. Results: Medium to large interaction effects were observed between cognitive task type and complexity on cognitive (F = 12.0-15.8, P <.001, ηp2 = 0.12-0.15) and mobility performance (F = 3.2-5.5, P <.05, ηp2 = 0.03-0.06) during dual-task level-ground walking and obstacle-crossing. Among the cognitive tasks, serial-subtraction had the greatest interference effect on both cognitive (Mean DTE = −9.2 to −21.5%) and mobility performance (Mean DTE = −18.7 to −19.1%). Overall, "mobility interference" (decrement in walking distance without a decrement in cognitive performance) was the most common dual-task effect pattern observed. Conclusion: The type and complexity level of the mobility and cognitive tasks interact to influence the degree and pattern of dual-task effects, with the serial-subtraction task inducing the greatest effect. Standardized assessments involving distinct cognitive domains are necessary for profiling dual-task interference during walking among individuals with chronic stroke. pubtype: Academic Journal doctype: equations & formulas research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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