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A task-orientated intervention enhances walking distance and speed in the first year post stroke: a randomized controlled trial

Department of Epidemiology and Biostatistics and Occupational Health, Faculty of Medicine, McGill University, Canada

N E Mayo

S Wood-Dauphinee

School of Physical and Occupational Therapy and Department of Epidemiology and Biostatistics and Occupational Health, Faculty of Medicine, McGill University, Canada

J A Hanley

Department of Epidemiology and Biostatistics and Occupational Health, Faculty of Medicine, McGill University, Canada

C L Richards

Department of Rehabilitation, Faculty of Medicine, Laval University, Canada

R Côté

Department of Neurology, Montreal General Hospital, McGill University Health Centre, Canada

Objective: To evaluate the efficacy of a task-orientated intervention in enhancing competence in walking in people with stroke.

Design: Two-centre observer-blinded stratified block-randomized controlled trial.

Setting: General community.

Subjects: Between May 2000 and February 2003, 91 individuals with a residual walking deficit within one year of a first or recurrent stroke consented to participate.

Interventions: The experimental intervention comprised 10 functional tasks designed to strengthen the lower extremities and enhance walking balance, speed and distance. The control intervention involved the practice of upper extremity activities. Subjects in both groups attended sessions three times a week for six weeks.

Main measures: Six-minute walk test (SMWT), 5-m walk (comfortable and maximum pace), Berg Balance Scale, timed ‘up and go’.

Results: At baseline, subjects in the experimental (n = 44) and control (n = 47) groups walked an average distance of 209 m (SD = 126) and 204 m (SD = 131), respectively, on the SMWT. Mean improvements of 40 m (SD = 72), and 5 m (SD = 66) were observed following the experimental and control interventions, respectively. The between-group difference was 35 m (95% confidence interval (CI) 7, 64). Significant between-group effects of 0.21 m/s (95% CI 0.12, 0.30) and of 0.11 m/s (95% CI 0.03, 0.19) in maximum and comfortable walking speed, respectively, were observed. People with a mild, moderate or severe walking deficit at baseline improved an average of 36 (SD = 96), 55 (SD = 56) and 18 m (SD = 23), respectively, in SMWT performance following the experimental intervention.

Conclusions: Study findings support the efficacy of a task-orientated intervention in enhancing walking distance and speed in the first year post stroke, particularly in people with moderate walking deficits.

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