Table 3.

Heart rate variability results from the practical exam. Mean HR: heart rate average; RMSSD: square root of the average of sum of the squared differences of the RR intervals; PNN50: percentage of consecutive RR intervals that differed >50 ms; LF: low-frequency waves; HF: high-frequency waves; LF/HF RATIO: rate between the low- and high-frequency waves; SD1: variability of the short-term HRV; SD2: variability of the long-term HRV.

	Pre (1)	1° Half (2)	2° Half (3)	F	p	ηp2	Moment Comparison
HR	102.41 ± 14.17	111.01 ± 15.42	106.53 ± 14.69	43.96	0.00	0.48	1 < 3
							2 > 1
							2 > 3
RMMSD	35.64 ± 28.40	29.45 ± 20.78	32.71 ± 19.27	6.26	0.00	0.12	1 > 3
							2 < 3
PNN50	9.84 ± 11.06	7.26 ± 8.80	7.93 ± 8.78	6.40	0.00	0.12	1 > 3
							2 < 3
LF	74.48 ± 11.91	73.62 ± 12.29	74.89 ± 15.57	0.50	0.60	0.01	1 > 2
							1 < 3
							2 < 3
HF	25.43 ± 11.87	26.29 ± 12.24	25.02 ± 15.53	0.50	0.60	0.01	1 < 2
							1 > 3
							2 > 3
LF/HF ratio	5.89 ± 19.83	3.71 ± 2.23	3.01 + 1.93	1.69	0.19	0.03	1 > 2
							1 < 3
							2 < 3
SD1	25.22 ± 20.09	20.84 ± 14.72	23.15 ± 13.64	6.25	0.00	0.12	1 > 3
							2 < 3
SD2	102.63 ± 45.50	88.47 ± 48.30	90.08 ± 49.83	5.73	0.00	0.11	2 < 3