Table 1 The characteristics of the subjects. Data are means (±SD).

	Exercise group	Comparison group
Age (yrs)	68.7 (2.8)	68.3 (3.1)
Height (m)	1.55 (.07)	1.59 (.02)
Body weight (kg)	56.2 (10.3)	61.7 (4.9)
Dancing Experience (yrs)	5.40 (1.95)