A systematic review and meta‐analysis of dual‐task outcomes in subjective cognitive decline
Abstract Subjective cognitive decline (SCD) may represent a preclinical manifestation of objective cognitive impairment. This review consolidated existing findings to determine if dual‐tasks objectively differentiate between individuals with SCD, motoric cognitive risk syndrome (MCR), mild cognitive...
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| Format: | Article |
| Language: | English |
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Wiley
2025-01-01
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| Series: | Alzheimer’s & Dementia: Diagnosis, Assessment & Disease Monitoring |
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| Online Access: | https://doi.org/10.1002/dad2.70054 |
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| author | Talia Salzman Erica Laurin Chloe Thibault Peter Farrell Sarah Fraser |
| author_facet | Talia Salzman Erica Laurin Chloe Thibault Peter Farrell Sarah Fraser |
| author_sort | Talia Salzman |
| collection | DOAJ |
| description | Abstract Subjective cognitive decline (SCD) may represent a preclinical manifestation of objective cognitive impairment. This review consolidated existing findings to determine if dual‐tasks objectively differentiate between individuals with SCD, motoric cognitive risk syndrome (MCR), mild cognitive impairment (MCI), and dementia. MEDLINE, Embase, PsycINFO, CENTRAL, AgeLine, and CINAHL were systematically searched for dual‐task studies examining older adults with SCD and analyzed using random‐effects meta‐analyses. Thirteen studies met the inclusion criteria. Within the SCD group, faster gait speed (SMD, 1.35; 95% CI, 0.57–2.13; p = .0007) and longer step length (SMD, 0.85; 95% CI, 0.44–1.26; p < .0001) favored the single compared to dual‐task condition. Faster gait speed was observed in the SCD group compared to MCI (SMD, 0.48; 95% CI, 0.28–0.67; p = .0001). A standardized dual‐task approach is needed to track gait parameters longitudinally, beginning with changes occurring at the SCD stage as these may precede future cognitive impairments. Highlights Evidence demonstrates that SCD may be a precursor to dementia. Faster dual‐task gait speed was observed in the SCD group compared to MCI. Slower dual‐task gait speed and shorter step length were observed within the SCD group. Dual‐tasks may help differentiate between preclinical and clinical cognitive decline. Dual‐tasks should be standardized and changes should be tracked longitudinally. |
| format | Article |
| id | doaj-art-d28e65f3d3f44f8b80b895df98ca01ad |
| institution | OA Journals |
| issn | 2352-8729 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Wiley |
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| series | Alzheimer’s & Dementia: Diagnosis, Assessment & Disease Monitoring |
| spelling | doaj-art-d28e65f3d3f44f8b80b895df98ca01ad2025-08-20T02:09:58ZengWileyAlzheimer’s & Dementia: Diagnosis, Assessment & Disease Monitoring2352-87292025-01-01171n/an/a10.1002/dad2.70054A systematic review and meta‐analysis of dual‐task outcomes in subjective cognitive declineTalia Salzman0Erica Laurin1Chloe Thibault2Peter Farrell3Sarah Fraser4Faculty of Health Sciences, School of Human Kinetics University of Ottawa Ottawa Ontario CanadaFaculty of Health Sciences, Interdisciplinary School of Health Sciences University of Ottawa Ottawa Ontario CanadaFaculty of Health Sciences, Interdisciplinary School of Health Sciences University of Ottawa Ottawa Ontario CanadaResearch Services University of Ottawa Library Ottawa Ontario CanadaFaculty of Health Sciences, Interdisciplinary School of Health Sciences University of Ottawa Ottawa Ontario CanadaAbstract Subjective cognitive decline (SCD) may represent a preclinical manifestation of objective cognitive impairment. This review consolidated existing findings to determine if dual‐tasks objectively differentiate between individuals with SCD, motoric cognitive risk syndrome (MCR), mild cognitive impairment (MCI), and dementia. MEDLINE, Embase, PsycINFO, CENTRAL, AgeLine, and CINAHL were systematically searched for dual‐task studies examining older adults with SCD and analyzed using random‐effects meta‐analyses. Thirteen studies met the inclusion criteria. Within the SCD group, faster gait speed (SMD, 1.35; 95% CI, 0.57–2.13; p = .0007) and longer step length (SMD, 0.85; 95% CI, 0.44–1.26; p < .0001) favored the single compared to dual‐task condition. Faster gait speed was observed in the SCD group compared to MCI (SMD, 0.48; 95% CI, 0.28–0.67; p = .0001). A standardized dual‐task approach is needed to track gait parameters longitudinally, beginning with changes occurring at the SCD stage as these may precede future cognitive impairments. Highlights Evidence demonstrates that SCD may be a precursor to dementia. Faster dual‐task gait speed was observed in the SCD group compared to MCI. Slower dual‐task gait speed and shorter step length were observed within the SCD group. Dual‐tasks may help differentiate between preclinical and clinical cognitive decline. Dual‐tasks should be standardized and changes should be tracked longitudinally.https://doi.org/10.1002/dad2.70054dementiadual taskgaitmild cognitive impairmentneuroimagingsubjective cognitive decline |
| spellingShingle | Talia Salzman Erica Laurin Chloe Thibault Peter Farrell Sarah Fraser A systematic review and meta‐analysis of dual‐task outcomes in subjective cognitive decline Alzheimer’s & Dementia: Diagnosis, Assessment & Disease Monitoring dementia dual task gait mild cognitive impairment neuroimaging subjective cognitive decline |
| title | A systematic review and meta‐analysis of dual‐task outcomes in subjective cognitive decline |
| title_full | A systematic review and meta‐analysis of dual‐task outcomes in subjective cognitive decline |
| title_fullStr | A systematic review and meta‐analysis of dual‐task outcomes in subjective cognitive decline |
| title_full_unstemmed | A systematic review and meta‐analysis of dual‐task outcomes in subjective cognitive decline |
| title_short | A systematic review and meta‐analysis of dual‐task outcomes in subjective cognitive decline |
| title_sort | systematic review and meta analysis of dual task outcomes in subjective cognitive decline |
| topic | dementia dual task gait mild cognitive impairment neuroimaging subjective cognitive decline |
| url | https://doi.org/10.1002/dad2.70054 |
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