Table 5.
Multiple regression testing the association among exercise, sleep quality and HRV.
| Dependent Variable | Independent Variable | Adjusted R2 | Unadjusted R2 | Normalized β | P Value | |
|---|---|---|---|---|---|---|
| β (SD) | 95% CI | |||||
| PSQI global score | Exercise | 41.9% | −5.150 (0.954) | −7.082, −3.218 | −5.396 | <.001 |
| Model 1 | 40.7% | −4.702 (1.064) | −6.866, −2.538 | −0.617 | <.001 | |
| Model 2# | 40.2% | −4.208 (1.218) | −6.690, −1.727 | −0.552 | .002 | |
| HFnu | Exercise | 25.7% | .151 (0.040) | .070, .231 | 0.525 | .001 |
| Model 1 | 22.5% | .146 (0.046) | .052, .240 | 0.503 | .003 | |
| Model 2## | 21.8% | .116 (0.059) | −.004, .235 | 0.399 | .057 | |
Model 1 was controlled for basic characteristics including age, gender, exercise, the change of depression score, and medication use. Model 2# was Model 1 + HFnu; Model 2## was Model 1 + PSQI score.