Table 3:
Spearman Correlations between physical activity and sedentary behavior with restless legs syndrome (RLS) severity for persons with multiple sclerosis and RLS as well as across samples differing in severity of RLS.
| IRLS | PSQI | ||
|---|---|---|---|
| PSQI | 0.306* | -- | |
| MS+RLS (n=66) | LPA (min/day) | −0.090 | −0.005 |
| MVPA (min/day) | −0.013 | 0.065 | |
| Active Bouts (#/day) | −0.075 | 0.029 | |
| Total time of Active Bouts (min/day) | −0.075 | 0.011 | |
| Active Bout Length (min) | −0.064 | 0.008 | |
| Sedentary Behavior (min/day) | 0.098 | −0.197 | |
| Breaks in Sedentary Time (#/day) | 0.076 | −0.081 | |
| Average Sedentary Bout Length (min) | 0.151 | 0.038 | |
| Sedentary Bouts (#/day) | 0.073 | −0.083 | |
| Total time of Sedentary Bouts (min/day) | 0.048 | −0.020 | |
| PSQI | −0.297 | -- | |
| Mild (n=26) | LPA (min/day) | −0.393* | −0.202 |
| MVPA (min/day) | −0.049 | −0.050 | |
| Active Bouts (#/day) | −0.076 | 0.161 | |
| Total time of Active Bouts (min/day) | −0.091 | 0.142 | |
| Active Bout Length (min) | −0.086 | 0.184 | |
| Sedentary Behavior (min/day) | 0.226 | −0.105 | |
| Breaks in Sedentary Time (#/day) | 0.568** | 0.024 | |
| Average Sedentary Bout Length (min) | 0.197 | 0.101 | |
| Sedentary Bouts (#/day) | 0.546* | 0.069 | |
| Total time of Sedentary Bouts (min/day) | 0.510* | 0.108 | |
| PSQI | 0.309 | -- | |
| Moderate-Very Severe (n=31) | LPA (min/day) | −0.066 | 0.220 |
| MVPA (min/day) | −0.035 | 0.340 | |
| Active Bouts (#/day) | 0.113 | 0.048 | |
| Total time of Active Bouts (min/day) | 0.124 | 0.047 | |
| Active Bout Length (min) | 0.148 | 0.033 | |
| Sedentary Behavior (min/day) | −0.157 | −0.432* | |
| Breaks in Sedentary Time (#/day) | −0.260 | 0.220 | |
| Average Sedentary Bout Length (min) | 0.287 | −0.171 | |
| Sedentary Bouts (#/day) | −0.291 | −0.285 | |
| Total time of Sedentary Bouts (min/day) | −0.211 | −0.273 |
Notes: MS Multiple Sclerosis; IRLS International Restless Legs Syndrome Study Group Scale; PSQI Pittsburgh Sleep Quality Index; LPA Light Physical Activity; MVPA Moderate-to-vigorous Physical Activity.