Table 3.

Within-group and between-group comparisons in postural stability, ankle range of motion, and functional lower extremities

	Tap dance group		Control group
	Pretest	Post-test	Pretest	Post-test
Postural stability with eyes open
COP trajectory (mm)	183.5±122.6	125.3±46.1	174.5±66.3	152.5±40.8
EA (mm2)	10.9±6.10	6.35±4.76	15.3±9.99	10.8±6.47*
Postural stability with eyes closed
COP trajectory (mm)	205.9±92.0	145.0±61.5	168.5±77.0	198.4±91.7*
EA (mm2)	11.2±7.18	6.47±5.11	9.31±9.47	11.0±8.14*
Ankle dorsiflexion
Left	6.05±4.37	11.4±6.16	8.20±3.04	8.35±4.53
Right	6.15±2.25	10.2±5.49	8.90±3.85	8.10±7.27
Ankle plantar flexion
Left	28.3±9.38	38.1±11.4	28.1±5.62	31.3±3.87*
Right	29.5±7.93	38.4±9.21	30.8±5.79	33.1±4.61*
FTSST	9.85±3.07	7.25±2.81	8.18±2.05	9.40±2.84*

Data represent mean (±SD).

*Comparing with tap dance group at post-test (p<0.05).

COP, center of pressure; EA, elliptical area; FTSST, Five Times Sit to Stand Test.