Why the study?
Does mental arithmetic alter R-R interval and systolic arterial pressure variabilities in men?
Does mental arithmetic alter R-R interval and systolic arterial pressure variabilities in men?
Spectral analysis of R-R and systolic arterial pressure variabilities can effectively assess dynamic changes in sympathetic and vagal activities during mental stress.
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Spectral analysis detects acute autonomic shifts during mental stress; leaves open its clinical role in cardiovascular risk assessment.
Pagani et al. (1989) studied this question.
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