Glossary

The heart rate describes how often the heart muscle contracts and relaxes within a minute. The blood pressure measurement devices used in the study indicate the blood pressure and the pulse. In healthy persons pulse and heart rate are identical.

A hypothesis is an assumption or a supposition. Empirical science consists largely in the examination of hypotheses. Scientists set up their research in such a way that they can test their hypotheses. As long as the hypotheses are not refuted by the research, for example by measurement values or survey data, the scientists continue working on the basis of the hypotheses.