What is the relationship between the Valsalva Wave and heart rate metrics?
Heart rate varies approximate 180 degrees out of phase with the Valsalva Wave. As we exhale, the Valsalva Wave rises in the arterial tree – heart rate slows. When we inhale, the Valsalva Wave falls in the arterial tree – heart rate increases. Again, this is thought to be a function of baroreceptor action as well as cardiac and pulmonary stretch receptors. Generally, as Valsalva Wave variability increases, heart rate variability increases.
