From nintendoworldreport.com:

A fter suffering a severe infection at a young age, Nicole Cahill was left with severe motor disabilities and a high probability that she might never walk again.

Implementing the use of Wii Fit has become an increasingly popular trend in the world of physical therapy. It has even been used to help people walk again, as is the case with ten-year-old Nicole Cahill from Marshaltown, Ireland.

…

After six months of rehabilitation treatment at Beth Israel, including the use of Wii Fit, Nicole Cahill amazed friends and family with her progress as she took her first steps in four years. The game was a key tool in her recovery as it incorporated both balance and stretch exercises, which were vital while working to strengthen her muscles. Mrs. Cahill stated that "the Wii Fit has really helped," and that it has "taken an awful lot of pressure off her as well."

Source

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