Meta-analysis of exercise for post-stroke cognitive impairment shows cognitive and motor benefits
This is a systematic review and meta-analysis examining the effects of exercise on patients with post-stroke cognitive impairment. The review synthesized data from a total sample of 4450 patients. The authors found that exercise interventions, including aerobic exercise, cognitive-motor dual-tasking, functional motor training, and task-based interventions, were associated with improvements in cognitive function, with a larger effect size for combined aerobic and task-based approaches (SMD = 1.18, 95% CI 0.68 to 1.68). The meta-analysis also reported improvements in motor function (MD = 13.98, 95% CI 10.06 to 17.89) and activities of daily living (MD = 16.78, 95% CI 12.97 to 20.58). Additionally, the review noted significant increases in serum levels of brain-derived neurotrophic factor (BDNF), glutathione (GSH), and neuron-specific enolase (NSE), and a notable decrease in interleukin-6 (IL-6). The authors did not report adverse events, follow-up duration, or study settings. Limitations were not detailed in the provided data. The review provides evidence-based guidance for early rehabilitation interventions, but the findings should be interpreted with caution due to the lack of reported safety data and other methodological details.