Table 2.
Rhythmometric Analysis (Population Mean Cosinor) for Intervention Group (IG) and Control Group (CG) at Baseline (PRE) and After 3 Months (POST)a.
| Groups | MESOR (Mean ± SE) | Amplitude (Mean and 95% CL) | Acrophase (h:min) (Mean and 95% CL) | |
|---|---|---|---|---|
| IG (N = 19) | PRE | 232.9 ± 18.1 | 197.8 (167.4-228.1) | 14:52 (12:30-17:14) |
| POST | 221.9 ± 10.8 | 177.9 (164.8-191) | 15:00 (12:45-17:15) | |
| CG (N = 21) | PRE | 223.7 ± 14.5 | 197.2 (177.5-216.8) | 14:31 (12:23-16:39) |
| POST | 215.8 ± 9.5 | 179.6 (166.1-193.1) | 14:47 (12:32-17:02) |
Abbreviation: CL, confidence limit.
a
The table reports results of the actigraphy-based analysis of the activity-level circadian rhythmicity in the IG and CG at baseline (PRE) and after 3 months (POST). The population mean cosinor applied to IG and CG at PRE and POST revealed the presence of a significant circadian rhythm in the 2 groups (P < .001). MESOR, Amplitude, and Acrophase were not different in the 2 groups in pretest conditions. Amplitude decreased significantly between PRE and POST (F[1, 38] = 6.4, P = .02). MESOR and Acrophase remained unchanged.