摘要：For the purpose of evaluating the effectiveness of a simple instability board apparatus of DYBOC developed by Nakayama et al., we prepared a labyrinth-guiding balance board and examined the standard values and learning effect. Eight healthy young adults performed 10 measurements, and the required time to finish a labyrinth and the locus of center of gravity for 15 sec were recorded. Both the required time and sway distance showed no correlation with body height and weight, and a negative correlation, though non significant, was observed between the required time and sway distance. During 10 consecutive measurements, there were significant variations both in the required time (F=2.78, p<0.05) and sway distance (F=3.52, p<0.05). The required time showed a tendency to decrease until the 5th measurements, and was subsequently unchanged showing approximately 23 sec. It was concluded that learning effect of a labyrinthguiding balance board becomes plateau in 5 measurements with the shorter required time to solve of approximately 23 sec.
关键词：balance board; healthy young adult; dynamic balance; locus of center of gravity
