Abstract
In order to examine differences among individuals and among variables related to the rate of shift of the circadian system, nine male students were studied for 72 h under controlled physical environmental conditions. During this 3-day test, they were subjected to a 12-hour shift in the times of sleep and meals. Differences in the rate of shift from day 1 to day 3 were observed for blood pressure and urinary cortisol, norepinephrine and dopamine, but not for other urinary variables or for heart rate, temperature and body weight. Inter-individual differences in the rate and/or direction of adjustment were seen primarily for blood pressure and heart rate. The experimental design used in this study may detect differences in the suitability of a subject for shift-work.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 145-150 |
| Number of pages | 6 |
| Journal | Scripta Medica Facultatis Medicae Universitatis Brunensis Masarykianae |
| Volume | 75 |
| Issue number | 3 |
| State | Published - 2002 |
Keywords
- Blood pressure
- Circadian rhythm
- Meal intake changes
- Sleep changes