Comparison of heart rate parameters in students with different achievements in rest and conditions of short-term mental stress
... variability of heart rate served as instruments to assess the stress resistance of two groups of students with different average academic performance in different periods of the educational process: at the beginning and at the end of the autumn semester. Mental stress always statistically significantly increased the heart rate in both groups of students, but significantly decreased heart rate variability only in the group of students with better academic performance at the end of the academic semester.
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