A study published in the medical journal Nature on Monday found that targeted electrical pulses delivered to the spinal cord can help improve arm and hand movement after a stroke.
published in the medical journal Nature on Monday found that targeted electrical pulses delivered to the spinal cord can help improve arm and hand movement after a stroke.
Two patients were able to regain additional motion in their arm and hand through a device implanted at the base of the spine, which delivered pulses in areas responsible for hand and arm function. The patients were able to regain temporarily the ability to grab and move objects, when they had been previously unable to do so, by strengthening signals to the brain that enable movement."We're not bypassing their control.
The participants were able to maintain lasting improvements to their motor function for four to five weeks after the cord stimulation devices were removed, according to the study. Data shows that one in four people globally will suffer from a stroke in their lifetime, and nearly three-quarters"will exhibit lasting deficits in motor control of their arm and hand that cause enormous personal and societal impact," according to the study.
With nearly 1.5 billion people experiencing stroke-induced motor impairment, scientific developments that improve arm and hand function could help improve overall quality of life for a significant number of people — but the experiment will need to be replicated with a larger group to see which stroke patients could best benefit from this kind of treatment.
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