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Titre : | Contributions of Cognitive Function to Straight- and Curved-Path Walking in Older Adults (2012) |
Auteurs : | Kristin Lowry ; Jennifer Brach ; Robert Nebes ; et al. |
Type de document : | Article |
Dans : | Archives of Physical Medicine and Rehabilitation (2012/5, 2012) |
Article en page(s) : | pp. 802-807 |
Langues: | Anglais |
Descripteurs : |
HE Vinci Personne âgée fragile ; Rééducation et réadaptation |
Mots-clés: | Elderly ; Executive function ; Gait ; Trail Making Test ; Fonctions exécutives ; Démarche |
Résumé : |
Objective To determine whether the cognitive function contribution to straight- and curved-path walking differs for older adults. Design Cross-sectional observational study. Setting Ambulatory clinical research training center. Participants People (N=106) aged 65 to 92 years, able to walk household distances independently with or without an assistive device, and who scored 24 or greater on the Mini-Mental State Examination. Interventions Not applicable. Main Outcome Measures Cognitive function was assessed using the Digit Symbol Substitution Test (DSST) as a measure of psychomotor speed, and Trail Making Test Parts A and B (TMT-A and TMT-B) and the Trail Making Test difference score (TMT-B-A) as executive function measures of complex visual scanning and set shifting. Gait speed recorded over an instrumented walkway was used as the measure of straight-path walking. Curved-path walking was assessed using the Figure-of-8 Walk Test (F8W) and recorded as the total time and number of steps for completion. Results Both DSST and TMT-A independently contributed to usual gait speed (P<.001 tmt-a performance contributed to f8w time neither tmt-b nor tmt-b-a usual gait speed or complete the f8w. for number of steps taken and p were independent contributors while dsst was not.> Conclusions Curved-path walking, as measured by the F8W, involves different cognitive processes compared with straight-path walking. Cognitive flexibility and set-shifting processes uniquely contributed to how individuals navigated curved paths. The measure of curved-path walking provides different and meaningful information about daily life walking ability than usual gait speed alone. |
Disponible en ligne : | Oui |
En ligne : | http://www.archives-pmr.org/article/S0003-9993%2811%2901102-6/abstract |