PM & R : the journal of injury, function, and rehabilitation | 19 Jun 2013
PV Mhatre, I Vilares, SM Stibb, MV Albert, PT Laura Pickering, CM Marciniak, K Kording and S Toledo
OBJECTIVE: The purpose of this study is to assess the effect of exercise training using the Nintendo Wii Fit videogame and balance board system on balance and gait in adults with Parkinson Disease (PD). DESIGN: Prospective Interventional Cohort Study. SETTING: Outpatient group exercise class. PARTICIPANTS: 10 subjects with PD, Hoehn and Yahr Stages 2.5 or 3, with a mean age of 67.1 years; 4 men, 6 women. INTERVENTIONS: Subjects participated in supervised group exercise sessions 3 times per week for 8 weeks, practicing three different Wii balance board games (marble tracking, skiing and bubble rafting) adjusted for their individualized function level. Subjects trained for 10 minutes per game, a total of 30 minutes training per session. MAIN OUTCOME MEASURES: Pre-and post-exercise training, a physical therapist evaluated subjects' function using the Berg Balance Scale (BBS), Dynamic Gait Index (DGI), and Sharpened Romberg with eyes open and closed. Postural Sway was assessed at rest and with tracking tasks using the Wii balance board. Subjects rated their confidence in balance using the Activities-specific Balance Confidence (ABC) scale and depression on the Geriatric Depression Scale (GDS). RESULTS: Balance as measured by the BBS improved significantly, with an increase of 3.3 points (p = .016). The DGI improved as well (mean increase 2.8, p = .004), as did postural sway measured with the balance board (decreased variance in stance with eyes open by 31%, p = .049). Though the Sharpened Romberg with eyes closed increased by 6.85 points and with eyes opened by 3.3 points, improvements neared significance only for eyes closed (p = .07 versus p = .188). There were no significant changes on patient ratings for the ABC (mean decrease -1%, p = .922) or the GDS (mean increase 2.2, p = .188). CONCLUSIONS: An 8-week exercise training class using the Wii Fit balance board improved selective measures of balance and gait in adults with PD. However, no significant changes were seen in mood or confidence regarding balance.
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