For analysis, the motion was divided into two phases depending on the activity of the lower limbs. Several different phases have been employed to analyze the upper limbs [3-6]. In this study, the firstphase covered the 2 seconds immediately prior to the landing of the non-pivot leg. The second phase covered the following two seconds immediately after the landing of the non-pivot leg (Fig. 2). I couldanalyze the activity of the lower limbs in units of 1/100 second, since the activity of the lower limbswas not faster than that of the upper limbs.