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. 2011 Dec 1;34(12):1631–1640. doi: 10.5665/sleep.1422

Table 3.

Actigraphic and subjective sleep quality variables

Wrist Actigraphy Exercise Training
Stretching
g
BL POST BL POST
    TST, min 398.3 (10.4) 390.2 (9.3) 388.3 (17.9) 385.3 (45.9) −0.25
    SOL, min 8.2 (1.4) 5.2 (0.7)* 10.0 (3.2) 11.9 (12.7) −0.52
    WASO, min 57.4 (4.9) 54.9 (4.8) 63.5 (10.4) 63.5 (39.3) −0.08
    SE, % 85.8 (1.2) 86.7 (1.1)* 84.1 (2.0) 83.8 (7.1) 0.17
    Napping, min 29.0 (4.3) 26.7 (5.2) 30.7 (6.9) 31.2 (32.6) −0.12
    Fragmentation index 42.4 (3.4) 41.1 (2.9)* 53.4 (9.0) 55.1 (35.2) −0.12
Pittsburgh Sleep Quality Index
    Poor sleep quality, prevalence 48% 29% 75% 75%
    Global score, 0-21 6.2 (0.6) 4.7 (0.5)* 8.1 (1.0) 8.0 (1.0) −0.43
    Sleep quality, 0-3 1.6 (0.1) 1.0 (0.2)* 1.6 (0.2) 1.4 (0.2) −0.60
    Sleep latency, 0-3 0.7 (0.2) 0.5 (0.1)* 1.3 (0.3) 1.4 (0.3) −0.32
    Sleep duration, 0-3 0.5 (0.1) 0.4 (0.1) 1.1 (0.3) 1.0 (0.2) 0.07
    Sleep efficiency, 0-3 0.2 (0.1) 0.2 (0.1) 0.8 (0.3) 0.6 (0.3) 0.26
    Sleep disturbances, 0-3 1.6 (0.1) 1.4 (0.1)* 1.6 (0.2) 1.8 (0.1) −0.62
    Sleep medications, 0-3 0.4 (0.2) 0.3 (0.2) 0.4 (0.3) 0.6 (0.3) −0.24
    Daytime dysfunction, 0-3 1.3 (0.1) 0.9 (0.1) 1.3 (0.2) 1.3 (0.2) −0.48

All data are presented as mean (standard error) unless otherwise noted. A PSQI global score > 5 was considered to be poor sleep quality.28 SE, sleep efficiency; SOL, sleep onset latency; TST, total sleep time; WASO, wakefulness after sleep onset.

*

Statistically significant difference between treatments at post-intervention following control for baseline values (P < 0.05).