The Valsalva maneuver is a breathing technique that can be used to help diagnose a problem with the autonomic nervous system (ANS). It can also be used to help restore a normal heart rate if your ...

The Valsalva maneuver is a particular way of breathing that increases pressure in the chest. It causes various effects in the body, including changes in the heart rate and blood pressure. The ...

The absence of heart rate response to orthostatic hypotension, to the Valsalva manoeuver and to the blood pressure increase during pressor infusion all suggest a failure of the afferent baroreflex ...

Two investigations have been carried out. The first studied the effects of autonomic blockade on the cardiovascular response to a step test, a 50% maximum isometric grip test and a Valsalva manoeuvre: ...