It seems that a content is not there yet. If you don't mind, drop us a line on what you've been looking for via the form below, and we might add missing content in a couple of updates.
The measurement of ANS activity was performed by measuring cardiac function with the VU Ambulatory Monitoring System (VU - AMS). (capmh.biomedcentral.com)
There were significant changes in HRV after six weeks of sauna indicating a favorable shift in ANS for treatment of allergic rhinitis. (infraredsauna.com)