Analysis of the emotional strain influence on the indicators of the heart rhythm variability in students

Open Access

Table 1.

Parameters of heart rate variability (M ± m) (n = 67)

Parameter		Vagotonics (n = 15)	Normotonics (n = 40)	Sympathotonics (n = 12)
SDNN, MS SDNN, ms	physiological rest	94.0 4.18	54.1 1.78^*	35.6 1.57^/ ^*
SDNN, MS SDNN, ms	emotional strain	63.8 5.36^***	46.9 2.76^/ ^**	36.0 4.74^*
Mo, Ms Mo, ms	physiological rest	917 22.57	840 23.58^*	735 32.13^/ ^*
Mo, Ms Mo, ms	emotional strain	764 31.18^***	768 19.21^***	717 22.48
AMo, % AMo, %	physiological rest	20.3 1.48	37.6 1.18^*	57.1 1.96^/ ^*
AMo, % AMo, %	emotional strain	36.5 3.34^***	47.8 3.20^/^**	59.7 7,.29^*
MxDMn, MC MxDMn, ms	physiological rest	446 15.78	279 8.93^*	182 11.02^/ ^*
MxDMn, MC MxDMn, ms	emotional strain	317 21.37^***	233 12.08^/^**	170 14.62^*
IN, standard units	physiological rest	24.8 1.27	84.6 4.87^*	221 23.75^/ ^*
IN, standard units	emotional strain	80.5 14.32^***	161 21,30^/^**	237 55.87^*
pNN50, % pNN50, %	physiological rest	47.0 3.77	24.9 2.62^*	4.5 0.98^/^*
pNN50, % pNN50, %	emotional strain	22.4 4.88^***	11.6 2.31^***	1.8 0.42^/^/^**

Note:

p<0.05 - differences are reliable with respect to students with vagotonia;

^**

p<0,05 – differences are reliable regarding students with normotonia;

^***

p <0.05 - differences are reliable with respect to normal conditions.

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