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Titre : | The Strength of the Ankle Dorsiflexors Has a Significant Contribution to Walking Speed in People Who Can Walk Independently After Stroke: An Observational Study (2012) |
Auteurs : | Simone Dorsch ; Louise Ada ; Colleen Canning ; et al. |
Type de document : | Article |
Dans : | Archives of Physical Medicine and Rehabilitation (2012/6, 2012) |
Article en page(s) : | pp. 1072-1076 |
Langues: | Anglais |
Descripteurs : |
HE Vinci Accident vasculaire cérébral (AVC) ; Force musculaire ; Rééducation et réadaptation |
Mots-clés: | Gait ; Muscle strength ; Stroke ; Démarche |
Résumé : |
Objective To investigate the relationship between the strength of muscles of the affected lower limb and walking speed after stroke. Design A cross-sectional observational study. Setting University laboratory. Participants Stroke survivors (N=60; mean age + SD, 69+11y) 1 to 6 years poststroke, able to walk 10m independently without aids. Interventions Not applicable. Main Outcome Measures Maximum isometric strength of 12 muscle groups (hip flexors/extensors, adductors/abductors, internal/external rotators, knee flexors/extensors, ankle dorsiflexors/plantarflexors, invertors/evertors) of the affected lower limb was measured using hand-held dynamometry. Comfortable walking speed was measured using the ten-meter walk test. Results Univariate analysis revealed that strength of the hip flexors (r=.35, P=.01), hip extensors (r=.29, P=.03), hip internal rotators (r=.30, P=.02), hip adductors (r=.29, P=.03), knee extensors (r=.27, P=.03), knee flexors (r=.30, P=.02), ankle dorsiflexors (r=.50, P=.00), ankle plantarflexors (r=.29, P=.03), and ankle evertors (r=.33, P=.01) were all positively associated with walking speed. Multivariate analysis (n=58) revealed that the combined strength of the ankle dorsiflexors and the hip flexors accounted for 34% of the variance in walking speed (P<.001 the ankle dorsiflexors accounted for of variance> Conclusions The strength of muscle groups other than the lower limb extensors, particularly the ankle dorsiflexors, has an important role in determining walking speed after stroke. |
Disponible en ligne : | Oui |
En ligne : | http://www.archives-pmr.org/article/S0003-9993%2812%2900031-7/abstract |