Reduced Walking Speed in Subjective and Mild Cognitive Impairment: A Cross-Sectional Study
| Autor: | Dag Aarsland, Arne Nakling, Mona Kristin Aaslund, Ole Martin Steihaug, Ingvill Fjell Naterstad, Tormod Fladby, Lasse Melvaer Giil, Mari Kalland Knapstad |
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| Rok vydání: | 2019 |
| Předmět: |
Male
medicine.medical_specialty Trail Making Test Poison control 03 medical and health sciences Cognition 0302 clinical medicine Physical medicine and rehabilitation Alzheimer Disease medicine Humans Dementia Cognitive Dysfunction Aged medicine.diagnostic_test business.industry Rehabilitation Neuropsychology Neuropsychological test Odds ratio Middle Aged medicine.disease Gait Walking Speed Preferred walking speed Cross-Sectional Studies Case-Control Studies Female 030211 gastroenterology & hepatology Geriatrics and Gerontology business human activities Biomarkers 030217 neurology & neurosurgery |
| Zdroj: | Journal of Geriatric Physical Therapy. 42:E122-E128 |
| ISSN: | 1539-8412 |
| Popis: | Background and purpose Walking speed is reduced in people with dementia, but less is known about predementia conditions. We, therefore, studied the relationship between walking speed, cognition, and cerebrospinal fluid biomarkers in persons with subjective (SCI) and mild cognitive impairment (MCI). Methods We conducted a cross-sectional study of 22 healthy controls, 30 SCI and 17 MCI (N = 69). Walking speed was measured by a 10-m gait test at usual and fast pace. We analyzed the association between walking speed and the ordered categories of controls, SCI, and MCI in a generalized proportional odds model. Neuropsychological tests, Consortium to Establish a Registry for Alzheimer's Disease (delayed recall), and Trail Making (TMT) A and B, were analyzed by negative binomial, linear, and robust regression for association with walking speed. Results Walking speed at usual pace was slower moving from controls to SCI (odds ratio: 0.46, P = 0.031) and MCI (odds ratio: 0.44, P = .019) on an ordinal scale. In MCI, walking speed was reduced at fast speed (odds ratio: 0.46, P = 0.04). There were significant associations between walking speeds and neuropsychological test performance. Usual walking speed was associated with slower test performance on TMT-A (β: -.02, P = .04) and fast pace with slower performance on TMT-B (β: -.01, P = .03). There were no associations between cerebrospinal fluid biomarkers and walking speeds. Conclusion Usual walking speed is reduced in a graded fashion with the early symptoms of cognitive impairment. Our results suggest that reduced walking speed at both usual and fast speed is associated with impaired cognitive function, and that walking speed could be affected at very early stages of neurodegeneration. |
| Databáze: | OpenAIRE |
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