Post-Stroke Aerobic Exercise Proven Safe and Beneficial for Cognitive Preservation
A new study confirms that aerobic exercise after a stroke is safe and can help preserve cognitive functions, offering a promising strategy for stroke rehabilitation and dementia prevention.
Recent research led by Monash University has provided encouraging evidence that engaging in aerobic exercise after an ischemic stroke is both safe and potentially beneficial for maintaining cognitive functions. The study, published in JAMA Network Open, highlights that while aerobic activity does not significantly increase brain volume compared to balance and stretching exercises, it does support cognitive performance, particularly in executive and overall cognitive functions, up to 12 months following a stroke.
The clinical trial included 104 stroke survivors, who were randomized into two groups: one engaging in a structured eight-week aerobic exercise program, and the other participating in balance and stretching activities. Due to pandemic circumstances, most participants completed their exercises at home via telehealth sessions, with supervision three times a week. Participants were assessed through brain imaging, cognitive testing, mood evaluations, and health monitoring at four and twelve months post-stroke.
Results demonstrated that aerobic exercise was well tolerated with no serious adverse events and did not cause additional brain shrinkage, a common concern in stroke recovery. Interestingly, both exercise groups showed less brain volume reduction than expected, with changes comparable to stroke-free healthy individuals. Moreover, the aerobic group showed superior preservation of memory and cognition, suggesting that such exercise interventions can help combat post-stroke brain decline.
Lead researcher Professor Amy Brodtmann emphasized the significance of these findings, pointing out that current post-stroke care lacks specific exercise prescriptions aimed at protecting the brain. The study supports integrating structured aerobic activities into stroke recovery programs to help prevent dementia and support brain health. Further research will explore the underlying mechanisms and long-term benefits of exercise in stroke survivors.
In summary, post-stroke aerobic exercise not only appears to be safe but may also play a vital role in preserving brain function and preventing cognitive decline, addressing an essential unmet need in stroke rehabilitation.
Source: https://medicalxpress.com/news/2025-08-aerobic-safe-cognition.html
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