Evaluation of a Computer Game Based Rehabilitation System for Assessment and Treatment of Balance and Gait Impairments in Individuals With Parkinson's Disease.

All the participants will take part in an 8 week (twice per week) computer game based exercise program for dual task balance and dual task walk training. Participants will be standing in front of LED monitor. They will be asked to wear a head band which will be instrumented with motion sense mouse. Thus, hands-free head rotations will be used to interact with the computer games selected for the DT rehabilitation program. Participants will play few interactive computer games during - Normal standing (fixed surface), Standing on a compliant sponge pad and then while walking on a treadmill.