Table 1

Mean (SD) of the basal RR value, the absolute changes, and maximal changes in RR intervals

Hours 1-150RRbasal(ms) 1-151Absolute changes in RR interval (ms) 1-151Maximal changes in RR interval (%)
0600820.4 (151.0)314.8 (507.1) 18.01 (17.31)
1200829.3 (146.3)436.7 (458.6) 19.81 (20.04)
1800834.8 (150.1)447.2 (485.2) 30.91 (21.59)
2400857.6 (214.4)610.2 (609.7) 35.91 (22.52)

  • ↵1-150 p > 0.05.

  • ↵1-151 0600 v 2400 , p < 0.001; 0600v 1800, p < 0.05; 0600v 1200, p > 0.05; 1200v 18.0, p > 0.05; 12.0v 24.00, p > 0.05.