Effects of Motor and Cognitive Dual-Task Demands on Ankle Dorsiflexor and Plantarflexor Force Control in Older Adults.
Background: Force steadiness can be impaired under dual-task conditions in older adults. Since this impairment is attributed to their limited attentional resources, we hypothesized that the degree of cortical activity involved in muscle contraction would affect force steadiness under dual-task condi...
| Publicado en: | Experimental Aging Research Vol. 51; no. 3; pp. 377 - 393 |
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| Autores principales: | , , , , , , |
| Formato: | research tables/charts tracings Journal Article |
| Publicado: |
Taylor & Francis Ltd
May/Jun2025
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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=184519049&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 184519049 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 0361073X 1HO jtl: Experimental Aging Research issn: 0361073X maglogo: N pubinfo: dt: May/Jun2025 vid: 51 iid: 3 pid: 377 pub: Taylor & Francis Ltd place: Philadelphia, Pennsylvania artinfo: ui: 184519049 180356224 184519049 184519049 10.1080/0361073X.2024.2406172 184519049 ppf: 377 ppct: 16 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Effects of Motor and Cognitive Dual-Task Demands on Ankle Dorsiflexor and Plantarflexor Force Control in Older Adults. aug: au: Ishizaka, Riku Nojima, Ippei Ishida, Kazuto Sugiura, Hideshi Takahashi, Aoki Minami, Kodai Watanabe, Tatsunori affil: Graduate School of Health Sciences, Aomori University of Health and Welfare, Aomori, Japan sug: subj: Task Performance and Analysis In Old Age Cognition Dorsiflexion Plantarflexion Ankle Joint Physiology Muscle Contraction Evaluation Human Female Male Adult Middle Age Aged Psychomotor Performance Questionnaires Electromyography Isometric Contraction Balance, Postural Analysis of Variance Post Hoc Analysis Data Analysis Software Descriptive Statistics Funding Source Adult: 19-44 years Middle Aged: 45-64 years Aged: 65+ years Female Male ab: Background: Force steadiness can be impaired under dual-task conditions in older adults. Since this impairment is attributed to their limited attentional resources, we hypothesized that the degree of cortical activity involved in muscle contraction would affect force steadiness under dual-task conditions. To test this hypothesis, based on the premise that dorsiflexion requires more cortical resources than plantarflexion, we compared the effects of additional motor and cognitive task demands on force steadiness between dorsiflexion and plantarflexion contractions in young and older adults. Method: Eighteen young and eighteen older adults performed a force tracking task by applying either isometric dorsiflexion or plantarflexion force concurrently with and without (control) secondary upper-limb motor or cognitive task. Results: Force steadiness was impaired by both secondary upper-limb motor and cognitive tasks for the dorsiflexors and plantarflexors in older adults. While force steadiness was impaired similarly by additional task demands regardless of the secondary task type for the dorsiflexors, the impairment effect was larger in the secondary cognitive than motor task for the plantarflexors. Conclusion: The effects of dual-task demand on force steadiness could depend on the degree of cortical activity involved in muscle contraction in older adults. pubtype: Academic Journal doctype: research tables/charts tracings Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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