July 1, 1994Psychophysiology
Individual differences in the autonomic origins of heart rate reactivity: The psychometrics of respiratory sinus arrhythmia and preejection period
Population
68 women
Authors
Discussion
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Member takes
Implication
Dual autonomic branch assessment may refine heart rate reactivity interpretation; extends psychophysiological methods but leaves clinical adoption open.
Structured PICO
P
Population
68 women
I
Intervention
Exposure to orthostatic and speech stressors
O
Outcome
Psychometric properties (postural stability, convergent and discriminant validity) of heart rate, preejection period, and respiratory sinus arrhythmiasurrogate
Heart rate reactivity classifications may be significantly improved by concurrently estimating the activity of both autonomic branches using preejection period and respiratory sinus arrhythmia.
Cite This Study
Cacioppo et al. (1994) studied this question.