Effect of Positive-word Stimuli on the Limits of Stability During Multi-direction Reach Operation in Standing Position

"Participants use application on iPhone and watch videos showing positive-word stimuli. This application repeats positive-word stimuli every 5 seconds.~The participants watch 3-minute motion picture displaying positive-word stimuli."

Participants will watch the same motion picture as the experimental group. However, a positive-word stimulus does not appear in the motion picture.