Table 1. Comparison of dyspnea, physical function, ADL and QOL over time in the each group.

	Diary group				Control group
	Baseline (n=15)	3 months (n=12)	6 months (n=8)		Baseline (n=18)	3 months (n=11)	6 months (n=7)
Age (years)	73.0 ± 6.6	71.9 ± 5.8	73.4 ± 6.0		71.8 ± 7.5	72.6 ± 6.9	72.1 ± 6.6
Diagnosis (COPD/IPF)	12/3	9/3	6/2		14/4	8/3	5/2
Gender (Male/Female)	11/4	9/3	6/2		13/5	8/3	6/1
Height (cm)	158.3 ± 10.3	158.3 ± 9.5	156.4 ± 11.2		161.2 ± 9.6	164.0 ± 10.7	166.5 ± 6.8
Weight (kg)	59.5 ± 10.3	58.7 ± 8.2	55.5 ± 7.2*		57.8 ± 8.6	60.5 ± 7.3	62.4 ± 6.7
Body Mass Index (kg/m²)	23.6 ± 2.5	23.4 ± 2.0	22.6 ± 1.1*		22.3 ± 3.2	22.6 ± 2.6	22.7 ± 3.5
mMRC	1.9 ± 0.7	1.4 ± 1.0*	0.6 ± 0.5*		1.3 ± 1.0	1.5 ± 0.8	0.9 ± 0.7
Knee extension strength (WBI)	0.601 ± 0.136	0.638 ± 0.107	0.701 ± 0.152		0.536 ± 0.204	0.530 ± 0.167	0.548 ± 0.268
6MWD (m)	451.1 ± 83.1	503.5 ± 79.4**	510.8 ± 88.3		448.1 ± 118.3	460.7 ± 137.1	469.4 ± 177.4
CS-30 (time)	14.3 ± 3.9	18.4 ± 3.4*	19.5 ± 4.4*		16.1 ± 4.8	15.4 ± 7.0	15.9 ± 8.6
NRADL	96.8 ± 3.8	97.4 ± 5.4	98.4 ± 3.8		95.5 ± 8.6	96.9 ± 6.2	98.3 ± 1.9
SGRQ	28.2 ± 18.5	23.0 ± 20.4	14.8 ± 17.0		21.2 ± 19.8	23.5 ± 20.4	20.0 ± 22.1
CAT	10.9 ± 7.1	10.3 ± 9.5	6.0 ± 7.8		10.0 ± 8.6	9.6 ± 7.3	8.4 ± 10.3

Mean ± standard deviation is presented. *p<0.05 and **p<0.01 compared to baseline in each groups. IPF: idiopathic pulmonary fibrosis; mMRC: modified Medical Research Council dyspnea scale; WBI: weight bearing index; 6MWD: 6-minute walking distance; CS-30: 30-second chair stand test; NRADL: The Nagasaki University Respiratory ADL questionnaire; SGRQ: The St. George’s Respiratory Questionnaire; CAT: The COPD Assessment Test