A recent medical breakthrough could change the way stroke recovery is viewed.
Rehabilitation after a stroke has long focused on restoring the most severely affected arm.
However, a new study suggests that strengthening the less affected arm can significantly improve daily functioning and long-term independence, according to ScienceAlert.
Published in JAMA Neurology, the research shows that stroke survivors who trained their less affected arm performed daily tasks faster and more efficiently than those who focused exclusively on the more affected limb, writes Mediafax.
The findings call into question traditional rehabilitation approaches and highlight an often overlooked direction of recovery.
Why both arms are affected after a stroke
A stroke occurs when blood flow to part of the brain is cut off and neurons are damaged and begin to die from lack of oxygen.
Because each cerebral hemisphere contributes to the control of both arms, a lesion on one side of the brain can affect movement on both sides of the body.
Although the arm opposite the brain injury usually shows obvious weakness and reduced control, the so-called “good” arm is often slower, weaker, and less coordinated than expected.
For many survivors, this arm becomes the main tool for daily activities, leading to fatigue and frustration.
The study and main conclusions
The researchers looked at more than 50 people who were living with chronic stroke and had a severely affected arm.
Participants were randomly assigned to train either the more affected arm or the less affected arm for five weeks.
Both groups practiced complex, goal-directed movements, including tasks performed in virtual reality.
Those who trained their less affected arm performed daily activities faster and more fluently, and the benefits were maintained after six months.
Rethinking stroke rehabilitation
Researchers believe that long-term improvements come from increased use in everyday life.
When the less affected arm works better, people use it more, consolidating progress through daily activity.
Experts point out that recovery does not always mean completely restoring what was lost.
For many survivors, strengthening what still works can be a more realistic and encouraging path to autonomy.
