Table 1. General characteristics of the subjects (Mean ± SD).

	Experimental group (n=15)	Control group (n=15)
Age (yr)	61.53 ± 7.68	60.93 ± 7.04
Weight (kg)	58.60 ± 7.06	58.33 ± 6.60
Height (cm)	158.67 ± 8.60	159.27 ± 7.45
Period of disease (m)	6.73 ± 5.19	6.40 ± 4.37
Gender (female/male)	12 / 3	11 / 4
Location of pain (left/right)	3 / 12	4 / 11