15/10/2026
How do therapists know when a weak muscle is actually getting stronger?
A muscle can contract before it's strong enough to move a leg against gravity. So how do therapists measure that change?
The MRC scale has six grades: 0 means no contraction; 5 means normal strength. After a stroke or spinal injury, moving from Grade 1 to Grade 3 takes precise, repeated practice.
Clinical data reports higher MRC scores after exoskeleton training. It assists weakened quads and calves when they need support.
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