Absolute values and percentage changes compared with respective baseline values during changes in loading conditions.

Mean values±S.E.M. n = 6. ESTVI, end-systolic TVI; EDTVI, end-diastolic TVI; pk-pk TVI, peak to peak TVI; HR, heart rate; MAP, mean arterial pressare; LVESP, left ventricular end-systolic pressure; LVEDP, left ventricular end-diastolic pressure; LVESV, left ventricular end-systolic volume; LVEDV, left ventricular end-diastolic volume; LVSW, left ventricular stroke work; Ea, arterial elastance; Ees, end-systolic elastance. * P