Table 2: The effects of a Wii-Fit and walking interventions on measured outcomes.

Outcome measure*GroupBaseline mean (SD)Week 4 mean (SD)Week 8 mean (SD)Intragroup change 𝑃 v a l u e Group X time Interaction
𝑃 value

BBSWii-Fit43.4 (8.9)47.5 (5.9)49.6 (5.7)0.0030.56
Walking41.3 (7.6)46.9 (6.3)46.6 (8.7)0.06
TTWii-Fit23.5 (3.7)24.6 (3.4)25.3 (2.8)0.0130.97
Walking22.9 (2.6)24.3 (3.7)24.9 (3.4)0.006
TUGWii-fit14.7 (7.2)14.3 (6.8)13.9 (7.9)0.310.52
Walking14.9 (4.7)13.8 (4.2)12.8 (3.2)0.07
ADLWii-Fit22.3 (1.6)22.5 (1.3)22.6 (1.3)0.550.11
Walking22.0 (2.7)21.7 (2.5)21.4 (2.5)0.11
IADLWii-Fit11.3 (4.3)10.5 (2.7)10.4 (2.8)0.360.11
Walking10.9 (3.5)12.5 (4.4)11.6 (4.2)0.53
QOL-ADWii-Fit36.5 (3.3)36.3 (3.3)35.9 (2.8)0.590.61
Walking37.3 (4.9)37.5 (6.1)35.6 (5.6)0.03
MMSEWii-Fit22.6 (4.3)22.0 (4.1)22.4 (2.8)0.930.70
Walking24.9 (3.6)25.4 (4.2)25.5 (4.1)0.22

A b b r e v i a t i o n s BBS: Berg Balance Scale; TT: Tinetti Test; TUG: Timed Up and Go; ADL: activities of daily living; IADL: instrumental activities of daily living; QOL-AD: quality of life-Alzheimer’s disease; MMSE: Mini Mental State Examination.
I n t r a g r o u p change between baseline and week 8, assessed post hoc using the one group paired t-test.
G r o u p by time interaction assessed with RM-ANOVA.