Table 1. General characteristics of subjects (n=30).

	CERE group (N=10)	CCE group (N=10)	Control group (N=10)
Gender (male/female)	6/4	6/4	5/5
Age (yrs)	66.7±5.1a	66.8±4.3	64.4±2.8
Height (cm)	163.9±5.0	165.1±6.5	164.7±4.6
Weight (kg)	66.5±3.8	65.3±5.7	64.6±5.0
BMI	24.7±1.9	24.3±2.8	24.1±2.5
Tobacco abuse	40%	40%	50%

^aMean±SD. CERE: chest expansion resistance exercise; CCE: core conditioning exercises; BMI: body mass index