[Central hemodynamics as dependent on the method of bicycle exercise in sanatorium patients who have had a myocardial infarct].

AIM

To study central hemodynamics response to bicycle exercise with optimal pedalling rate (OPR) and in free-choice regimen of pedalling as regards the initial pedalling rate in postmyocardial infarction (PMI) patients on sanatorium treatment.

MATERIALS AND METHODS

Bicycle ergometry and tetrapolar rheography examinations were performed in 124 PMI male patients. Bicycle exercise was carried out in three regimens: a) optimal pedalling rate (1), b) muscular load chosen by the patient at the first training kept further for daily training (2), c) free-choice daily load (3).

RESULTS

In OPR 30 and 45 rpm, patients on regimen 3 improved their myocardial contractility both at rest and exercise. In OPR 60 rpm, exercise in regimen 1 was more effective. Regimen 2 was not effective.

CONCLUSION

Hemodynamic effects were most pronounced (improved myocardial contractility in more effective cardiac performance) in the regimen of OPR 60 rpm.