Article

OBJECTIVE: To evaluate whether aerobic exercise improves cognition in adults
diagnosed with neurologic disorders. DATA SOURCES:
The Cochrane Central Register
of Controlled Clinical Trials, MEDLINE, CINAHL, PubMed, EMBASE, PEDro, AMED,
SPORTDiscus, PsycINFO, ERIC, and Google Scholar, with the last search performed
in December 2010. We included controlled clinical trials and
randomized controlled trials with adults diagnosed with a neurologic disorder.
Studies were included if they compared a control group with a group involved in
an aerobic exercise program to improve cardiorespiratory fitness and if they
measured cognition as an outcome. DATA EXTRACTION: Two reviewers independently
extracted data and methodologic quality of the included trials. DATA SYNTHESIS:
From the 67 trials reviewed, a total of 7 trials, involving 249 participants,
were included. Two trials compared the effectiveness of yoga and aerobic exercise
in adults with multiple sclerosis. Two trials evaluated the effect of exercise on
patients with dementia, and 2 trials evaluated the effectiveness of exercise to
improve cognition after traumatic brain injury. One trial studied the effect of a
cycling program in people with chronic stroke. Lack of commonality between
measures of cognition limited meta-analyses. Results from individual studies show
that aerobic exercise improved cognition in people with dementia, improved
attention and cognitive flexibility in patients with traumatic brain injury,
improved choice reaction time in people with multiple sclerosis, and enhanced
motor learning in people with chronic stroke. CONCLUSIONS: There is limited
evidence to support the use of aerobic exercise to improve cognition in adults
with neurologic disorders. Of the 67 studies retrieved, less than half included
cognition as an outcome, and few studies continued the aerobic exercise program
long enough to be considered effective. Further studies investigating the effect
of aerobic exercise interventions on cognition in people with neurologic
conditions are required.
CI - Copyright (c) 2011 American Congress of Rehabilitation Medicine. Published by
Elsevier Inc. All rights reserved.

Langue : ANGLAIS