AN OVERVIEW OF THE PROBLEM - EXERCISE TRAINING AND ORTHOSTATIC INTOLERANCE

The questions, whether endurance exercise training (a) induces orthost atic intolerance and (b) alters blood pressure regulation during ortho stasis, have been debated since the early 1970s. This symposium presen ts data that both support and discount the concepts. In addition, data were presented that document invasive and noninvasive techniques of m easurement used during investigations of baroreflex and hemodynamic me chanisms of blood pressure regulation during lower body negative press ure (LBNP), a laboratory technique that simulates orthostasis. These t echniques and the results obtained enabled the formulation of a hypoth etical mechanism of explanation of the ''pro and con'' of the debated questions.