Why the study?
Can vagal tone be selectively measured and quantified on a linear scale using non-invasive ECG indices of respiratory sinus arrhythmia and beat-to-beat variation in healthy volunteers?
Can vagal tone be selectively measured and quantified on a linear scale using non-invasive ECG indices of respiratory sinus arrhythmia and beat-to-beat variation in healthy volunteers?
A linear vagal scale (LVS) can be calculated using non-invasive ECG indices (respiratory sinus arrhythmia and beat-to-beat variation) to assess parasympathetic control of the heart.
Authors
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May support ECG-based vagal assessment in research; leaves open clinical validation and use as a linear scale.
Peter O.O. Julu (1992) studied this question.
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