Here is a big section of the discussion section of the paper. Basically, Standard Occupational Therapy (SOT) helps Down Syndrome (DS) kids do better on fine and gross motor skills. Using Virtual Reality Wii seems to help even more. Gotta love that. Of the two intervention groups, children who received VRWii therapy demonstrated the largest increase in post-intervention scores on the BOT-2 gross motor subtests. Significant improvement in gross motor function may be accounted for by the accumulated effects from a series of training steps that are structured, progressive, goal-directed, and interrelated. For instance, once the child initially learned to maintain equilibrium on VRWii Sports items, more challenging dynamic tasks such as jumping, striking and catching balls were introduced. VRWii could allow the child to interact with a computer-simulated environment and receive near real-time augmented feedback on performance. After mastering the VRWii tasks, the child was better able to use body feedback to understand the movement outcomes (feedback), anticipate upcoming events (feedforward), and plan alternative strategies (Brooks, 1986). Simultaneously, the child was encouraged to rely more on internal feedback and self-evaluation of performance than external feedback from others and environment. By adjusting the difficult level of Wii Sport items, more mature patterns of motor control emerged from better use of feedback and feedforward mechanisms
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