[Athlete's heart syndrome].

Performing vigorous physical activity means a multiorgan system engagement, but the cardiovascular system plays a critical role. In order to provide enough oxygen to activate muscles during repeated physical activity of high intensity, the heart undergoes profound morphologic, functional and electrophysiological alterations, which have been identified as the "athlete's heart syndrome". "The athlete's heart" is a complex, but not precisely defined concept, anatomically and functionally and in relation to health and disease.

Centrally applied somatostatin influences morphology of pituitary FSH cells but not FSH release.

Effects of i.c.v.

A simple and reliable step-test for indirect evaluation of aerobic capacity.

Substantial data confirm the benefits of physical activity, but it is necessary to prescribe exercise correctly in regard to aerobic capacity of each patient. When undertaking investigation of a great number of people, it is necessary to apply a simple, fast, reliable and inexpensive test. The aim of this study was to evaluate the validity of a new step-test in physically active subjects.

Morphometric and functional changes of rat pituitary somatotropes and lactotropes after central administration of somatostatin.

This study examined effects of intracerebroventricularly (i.c.v.