Table 2.

Mean ± standard error of the mean of the heart rate variability measures in the domain of time and frequency

	Sham	Active
Average HR in BPM	82.73 ± 1.38	82.37 ± 1.44
RMSSD	36.72 ± 2.62	36.52 ± 2.53
NN50	55.50 ± 7.34	54.28 ± 6.98
HF power in ms2	727.92 ± 102.18	706.29 ± 88.61