Article

Physical activity is beneficial for improving cognitive function in
healthy older adults. However, research results on the benefits of physical
activity on cognitive performance after stroke are limited. OBJECTIVE: To
determine if a combined exercise and recreation program can improve the executive
functioning and memory of individuals with chronic stroke. METHODS: In all, 11
ambulatory participants with chronic stroke (mean age 67 +/- 10.8 years)
participated in a 6-month program of exercise for 2 hours and recreation for 1
hour weekly. Executive functions and memory were assessed at baseline and at 3
and 6 months by a battery of standard neuropsychological tests, including
response inhibition, cognitive flexibility, dual task (motor plus cognitive), and
memory. Motor ability was also assessed. Nonparametric statistics were used to
obtain the differences between the 3 assessments. RESULTS: At baseline,
substantial deficits in all aspects of executive functioning were revealed. From
baseline to 3 months, the mean improvement was 10% +/- 14% for the dual task
(Walking While Talking), -3% +/- 22% (chi(2) = 2.4; P > .05) for response
inhibition (Stroop Test), and 61% +/- 69% for memory (Rey Auditory Verbal
Learning Test-long delay). From baseline to 6 months, the mean improvement was 7%
+/- 7.5% for response inhibition (Stroop Test). In addition, knee strength and
walking speed improved significantly at 3 months. CONCLUSIONS: This pilot study
suggests that exercise and recreation may improve memory and executive functions
of community-dwelling individuals with stroke. Further studies require a larger
sample size and a control group.

Langue : ANGLAIS