Table 2.

Effects of walking on subjective sleep quality

	Total 0 week	Total 4 weeks	p Value	EG 0 week	EG 4 weeks	p Value	non-EG 0 week	non-EG 4 weeks	p Value	p Value (EG 0 week vs non-EG 4 weeks)
PSQI global score	3.8±2.2	3.3±2.0	<0.01	3.6±2.0	3.3±2.0	<0.01	4.0±2.4	3.4±2.1	<0.01	0.051
Sleep latency (min)	19.3±15.7	15.4±15.1	<0.01	18.4±13.7	17.5±16.3	0.50	20.2±17.4	13.7±13.9	<0.01	0.25
Sleep duration (hours)	6.1±0.9	6.2±1.0	<0.01	6.2±0.9	6.3±0.9	0.10	6.0±0.8	6.1±1.0	0.01	<0.01
PSQI global score >5 (%)	12.9%	10.4%	0.23	10.3%	8.4%	0.51	14.9%	12.0%	0.31	0.12
Sleep efficiency	1.2±0.9	1.1±0.9	0.056	1.1±0.9	1.0±0.9	0.42	1.3±0.9	1.1±0.9	0.29	0.02
Perceived sleep quality	1.5±1.0	1.3±1.0	<0.01	1.5±1.0	1.3±1.0	0.03	1.5±1.1	1.2±1.0	0.02	0.89
Daily disturbances	1.1±0.6	1.0±0.6	0.02	1.0±0.6	1.0±0.6	0.18	1.1±0.6	1.1±0.6	0.32	0.18

EG, exercising group; PSQI, Pittsburgh Sleep Quality Index.