
Depending on the severity, this condition can confine individuals to a wheelchair or leave them bedridden. It can also make eating and even breathing difficult, sometimes fatally so.
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But a new tool has shown it can help SMA patients rebuild their strength. After just a few weeks of engaging with a video game, six children in China could stand up from a chair for the first time.
The children, aged six to 10, volunteered for a study that involved strapping a robot to their knees. The robot, weighing less than 1kg (nearly 2lbs), did not help them to move – instead, it resisted them. When they kicked, the robot made it a little harder.
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This forced their muscles and nerves to work together, building muscle mass and strength.

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