Table 2.
Polysomnographic sleep variables
| Variable | Exercise Training |
Stretching |
g | ||
|---|---|---|---|---|---|
| BL | POST | BL | POST | ||
| TST, min | 402.2 (6.7) | 406.5 (8.7) | 410.6 (7.7) | 400.3 (13.6) | 0.44 |
| SOL, min | 9.6 (1.7) | 9.8 (1.8) | 12.0 (2.8) | 13.5 (2.9) | −0.14 |
| WASO, min | 68.2 (6.4) | 63.7 (7.7) | 57.4 (6.8) | 66.1 (12.7) | −0.43 |
| SE, % | 83.8 (1.4) | 84.7 (1.8) | 85.5 (1.6) | 83.4 (2.8) | 0.44 |
| Stage N1 sleep (%) | 10.6 (1.0) | 9.6 (1.0) | 13.9 (3.2) | 14.3 (3.2) | −0.16 |
| Stage N2 sleep (%) | 60.2 (1.5) | 59.0 (2.1) | 55.0 (3.3) | 57.8 (2.5) | −0.40 |
| Stage N3 sleep (%) | 12.8 (1.2) | 13.2 (1.1)* | 12.4 (1.7) | 9.2 (1.5) | 0.58 |
| REM sleep (%) | 16.4 (1.1) | 18.3 (1.3) | 18.7 (1.4) | 18.7 (2.2) | 0.32 |
| Arousal index | 36.9 (4.0) | 35.8 (3.5) | 31.2 (4.3) | 32.7 (5.0) | −0.13 |
| Supine sleep, min | 139.0 (21.6) | 138.2 (15.7) | 157.0 (28.4) | 164.0 (23.4) | −0.07 |
| Apnea index | 21.7 (4.8) | 15.0 (3.3)* | 15.1 (4.1) | 20.9 (5.2) | −0.56 |
| Hypopnea index | 10.5 (2.2) | 9.6 (2.0) | 9.3 (2.3) | 8.0 (1.9) | 0.03 |
| Minimum SpO2, % | 79.6 (1.4) | 79.9 (1.5) | 80.4 (1.9) | 78.7 (2.0) | 0.27 |
| ODI | 24.5 (4.2) | 21.5 (3.7)* | 16.8 (4.2) | 23.2 (5.8) | −0.47 |
| SpO2 < 90, % TST | 5.2 (1.2) | 4.7 (1.1) | 3.6 (1.2) | 5.2 (1.4) | −0.37 |
All data are presented as mean (standard error). Figure 3 summarizes change in AHI. N1-N3, NREM sleep stages 1-3, respectively; ODI, oxygen desaturation index; SpO2, arterial oxygen saturation; SE, sleep efficiency; SOL, sleep onset latency; TST, total sleep time; WASO, wakefulness after sleep onset. g indicates Hedges' g effect size measure.
*
Statistically significant difference between treatments at post-intervention following control for baseline values (P < 0.05).