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Titre : | Effect of Increasing Obstacle Distances Task on Postural Stability Variables During Gait Initiation in Older Nonfallers and Fallers (2022) |
Auteurs : | Roshita Rathore ; Carole A. Tucker ; John J. Jeka ; Geoffrey, W Wright ; Christopher P. Hurt |
Type de document : | Article |
Dans : | Archives of Physical Medicine and Rehabilitation (Vol. 103, n° 12, 2022) |
Article en page(s) : | p. 2303-2310 |
Note générale : | https://doi.org/10.1016/j.apmr.2022.04.006 |
Langues: | Anglais |
Descripteurs : |
HE Vinci Chutes accidentelles ; Démarche ; Réadaptation ; Sujet âgé |
Résumé : |
Objective
To compare the scaling of the postural stability variables between older nonfallers and fallers during gait initiation (GI) while stepping over increasing obstacle distances. Design Cross-sectional study. Setting University research laboratory. Participants A sample of participants (N=24) divided into 2 groups: older nonfallers (n=12) and older fallers (n=12). Participants had no known neurologic, musculoskeletal, or cardiovascular conditions that could have affected their walking, and all were independent walkers. All the participants had an adequate cognitive function to participate as indicated by a score of more than 24 on the Mini-Mental State Examination. Interventions Not applicable. Main Outcome Measures The primary dependent variables were peak anterior-posterior (AP) center of mass (CoM)-center of pressure (CoP) separation during anticipatory postural adjustments (APAs), AP CoM-CoP separation at the toe-off, and peak AP CoM-CoP separation during the swing. Secondary dependent variables were AP trunk angle during GI. Within- and between-repeated measures analysis of variance was used to compare means between groups across different task conditions for all the dependent variables. Results There was a main effect of group for peak AP CoM-CoP separation during APA (P=.018), an interaction effect between group and condition for AP CoM-CoP separation at toe-off (P=.009), and a main effect of condition for peak AP CoM-CoP separation during the swing (P<.001 we also found a main effect of group for peak ap trunk angle during the swing> Conclusions For GI while stepping over increasing obstacle distances, older fallers adopt a more conservative strategy of AP CoM-CoP separation than nonfallers prior to toe-off and demonstrate increased peak AP trunk lean during the swing. AP CoM-CoP separation prior to toe-off during the GI task may be a critical marker to identify fallers and warrants additional investigation. |
Disponible en ligne : | Oui |
En ligne : | https://login.ezproxy.vinci.be/login?url=https://www.sciencedirect.com/science/article/pii/S0003999322003653 |