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Table 3 HRV indices, energy expenditure and substrate oxidation during the rest or exercise period

From: Exercise prior to a freely requested meal modifies pre and postprandial glucose profile, substrate oxidation and sympathovagal balance

  Rest Exercise
HR (bpm) 64 ± 4 151 ± 3‡
LF (ms2) 2443 ± 184 68 ± 20‡
HF (ms2) 2952 ± 757 41 ± 18†
HF (n.u.) 47 ± 6 21 ± 3†
LF/HF 1.7 ± 0.5 8.2 ± 1.8*
Energy (kJ) 418 ± 39 3109 ± 222‡
RER 0.807 ± 0.008 0.931 ± 0.003‡
CHO (g) 10.7 ± 3.4 146.3 ± 11.2‡
Fat (g) 6.3 ± 0.6 17.6 ± 1.4*
  1. Values are expressed as mean ± SEM. HR, Heart rate, LF, Low-frequencies. HF, High-frequencies. RER, respiratory exchange ratio. CHO, carbohydrates. Significantly different from RT, * p < 0.05, † p < 0.001, ‡ p < 0.01