Table 2 Change in heart rate variability and its relationship with body mass index in all subjects (n = 55)
(a) Variables | Before lunch | After lunch | After lunch (30 min) | After lunch (1 h) |
|---|---|---|---|---|
Heart rate (beats/min) | 73.4 ± 1.4 | 77.9 ± 1.5 (< 0.001) | 78.3 ± 1.6 (< 0.001) | 76.4 ± 1.6 (0.007) |
Very low frequency (ms2) | 1070.3 ± 120.2 | 849.2 ± 120.1 (0.129) | 776.2 ± 107.0 (0.015) | 752.2 ± 89.8 (0.008) |
Low frequency (ms2) | 772.6 ± 105.2 | 823.6 ± 107.3 (0.625) | 624.5 ± 86.7 (0.162) | 608.9 ± 60.5 (0.212) |
High frequency (ms2) | 643.1 ± 73.4 | 695.6 ± 88.6 (0.331) | 611.7 ± 72.0 (0.688) | 818.4 ± 110.7 (0.108) |
Low-to-high frequency ratio | 1.8 ± 0.2 | 1.8 ± 0.3 (0.703) | 1.5 ± 0.2 (0.272) | 1.3 ± 0.2 (0.005) |
(b) Variables | Before lunch | After lunch | After lunch (30 min) | After lunch (1 h) |
Heart rate (beats/min) | -0.224 (0.099) | -0.123 (0.372) | -0.218 (0.110) | -0.226 (0.098) |
Very low frequency (ms2) | -0.073 (0.595) | 0.159 (0.246) | 0.006 (0.967) | 0.116 (0.397) |
Low frequency (ms2) | 0.189 (0.168) | -0.094 (0.494) | 0.097 (0.479) | 0.306 (0.023) |
High frequency (ms2) | 0.201 (0.142) | 0.089 (0.518) | 0.175 (0.201) | 0.143 (0.298) |
Low-to-high frequency ratio | -0.037 (0.790) | -0.193 (0.157) | -0.085 (0.536) | 0.103 (0.455) |