Changes in physical activity and fitness after 3 months of home Wii Fit(TM) use

Journal of Strength & Conditioning Research:

25(11): 3191-3197, 

11 October 2011

Owens, SG, Garner III, JC, Loftin, JM, van Blerk, N, and Ermin, K.

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Abstract 
The purpose of this study was to examine changes in physical activity and fitness variables in members of 8 volunteer families after 3 months of home use of the Wii Fit(TM) interactive video game. Pre and postintervention measurements were obtained from 21 subjects relative to physical activity (5 days of accelerometry), aerobic fitness (graded treadmill test), muscular fitness (push-ups), flexibility (sit-and-reach test), balance (composite equilibrium score), and body composition (body mass index and % body fat). Use characteristics of the Wii Fit(TM) device were also determined. A series of 2 (age group) x 2 (time) repeated measures analyses of variance were conducted to assess changes over time and between adults and children. Three months of home Wii Fit(TM) use revealed no significant age group x time interactions or main effects of group or time for daily physical activity, muscular fitness, flexibility, balance, or body composition. An age group x time interaction (p = 0.04) was observed in peak [latin capital V with dot above]O2 (ml[middle dot]kg-1[middle dot]min-1) with children displaying a significant (p = 0.03) increase after 3 months of Wii Fit(TM) use, whereas adults showed no significant (p = 0.50) change. Daily Wii Fit(TM) use per household declined by 82% (p < 0.01) from 21.5 +/- 9.0 min[middle dot]d-1 during the first 6 weeks to 3.9 +/- 4.0 min[middle dot]d-1 during the second 6 weeks. Most measures of health-related fitness in this exploratory study remained unchanged after 3 months of home use of the popular Wii Fit(TM) whole-body movement interactive video game. Modest daily Wii Fit(TM) use may have provided insufficient stimulus for fitness changes. 


 (C) 2011 National Strength and Conditioning Association 


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The effects of single bouts of aerobic exercise, exergaming, and videogame play on cognitive control.

Clinical Neurophysiology. 2011 Aug;122(8):1518-25. Kevin C. O’Leary, Matthew B. Pontifex, Mark R. Scudder, Michael L. Brown, Charles H. Hillman Department of Kinesiology & Community Health, 317 Louise Freer Hall, 906 South Goodwin Avenue, University of Illinois, Urbana, IL 61801, USA

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Abstract Objective The effects of single bouts of aerobic exercise, exergaming, and action videogame play on event-related brain potentials (ERPs) and task performance indices of cognitive control were investigated using a modified flanker task that manipulated demands of attentional inhibition. Methods Participants completed four counterbalanced sessions of 20min of activity intervention (i.e., seated rest, seated videogame play, and treadmill-based and exergame-based aerobic exercise at 60% HRmax) followed by cognitive testing once heart rate (HR) returned to within 10% of pre-activity levels. Results Results indicated decreased RT interference following treadmill exercise relative to seated rest and videogame play. P3 amplitude was increased following treadmill exercise relative to rest, suggesting an increased allocation of attentional resources during stimulus engagement. The seated videogame and exergame conditions did not differ from any other condition. Conclusions The findings indicate that single bouts of treadmill exercise may improve cognitive control through an increase in the allocation of attentional resources and greater interference control during cognitively demanding tasks. However, similar benefits may not be derived following short bouts of aerobic exergaming or seated videogame participation. Significance Although exergames may increase physical activity participation, they may not exert the same benefits to brain and cognition as more traditional physical activity behaviors. Click here for more