Slow gait in MCI is associated with ventricular enlargement: results from the Gait and Brain Study
Autor: | Robert Bartha, O. Beauchet, Manuel Montero-Odasso, Cédric Annweiler |
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Přispěvatelé: | Laboratoire de Psychologie des Pays de la Loire (LPPL), Université d'Angers (UA)-Université de Nantes - UFR Lettres et Langages (UFRLL), Université de Nantes (UN)-Université de Nantes (UN) |
Jazyk: | angličtina |
Rok vydání: | 2012 |
Předmět: |
Male
medicine.medical_specialty Neurology Brain mapping [SHS]Humanities and Social Sciences 03 medical and health sciences Lateral ventricles Imaging Three-Dimensional 0302 clinical medicine Gait (human) Lateral Ventricles Internal medicine medicine Humans Cognitive Dysfunction 030212 general & internal medicine Cognitive decline Gait Gait Disorders Neurologic Biological Psychiatry Aged Brain Ventricle Aged 80 and over Brain Middle Aged medicine.disease Magnetic Resonance Imaging Surgery Hydrocephalus Psychiatry and Mental health medicine.anatomical_structure Ventricle Cardiology Female Neurology (clinical) Mental Status Schedule Psychology human activities 030217 neurology & neurosurgery |
Zdroj: | Journal of Neural Transmission Journal of Neural Transmission, 2012, 120 (7), pp.1083-92. ⟨10.1007/s00702-012-0926-4⟩ |
ISSN: | 1435-1463 |
Popis: | International audience; Slow gait is ubiquitous among older adults and predicts cognitive decline and progression to dementia. Age-related structural brain changes could be responsible for abnormal gait. The purpose of this study was to determine whether brain lateral ventricle volume, a measure of brain atrophy, was associated with gait velocity among older adults with mild cognitive impairment (MCI), while considering the effects of age and brain vascular burden. Twenty community-dwellers with MCI, free of hydrocephalus, aged 76 years (69/80) [median (25th/75th percentile)] (35 % female) from the 'Gait and Brain Study' were included in this analysis. Quantitative gait performance was measured while steady-state walking at self-selected pace with a 6-m electronic portable walkway (GAITRite). Brain ventricle volume was quantified using semi-automated software from three-dimensional T1-weighted magnetic resonance imaging. Age, white matter hyperintensity burden and Mini-Mental State Examination score were used as potential confounders. Median gait velocity was 118.7 cm/s (104.4/131.3). Median brain ventricle volume was 39.9 mL (30.0/46.6) with the left ventricle being slightly larger than the right (P = 0.052). Brain ventricle volume was inversely associated with gait velocity (adjusted beta = -0.63, P = 0.046). Volume of both the ventricular main bodies and the temporal horns correlated inversely with gait velocity (respectively, P = 0.009, P = 0.008). Left ventricle volume correlated with decreased gait velocity (P = 0.002) while right ventricle did not (P = 0.068). Slower gait velocity was associated with larger brain ventricle volume in our sample of people with MCI independent of age, cerebrovascular burden and cognitive worsening. This result may help elucidate the trajectories of cognitive and gait declines in people with MCI. |
Databáze: | OpenAIRE |
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