[Four-week training of patients with large anterior wall infarct: comparison with a randomized untrained control group].
Thirty-nine male patients (average age 50.8 years +/- 8.4 years) with a large anterior myocardial infarction (average 45.6 days +/- 10.5 days ago) and with moderate to severe left-ventricular dysfunction (RNVA EF less than 50%) participated in the study. The patients were randomly assigned to either a training group or to a control group. They were also subdivided into training/control groups (EF less than 30% and EF = 30-50%). The training program consisted of three to four sessions per day, 5 days a week, at an intensity of up to 1 W/kg body wt. (approximately 4-5 METS). The following evaluations were recorded prior to and following the 4-week training program: relative heart volume (x-ray), echocardiographic data (enddiastolic diameter, ES-distance, and shortening fraction), and exercise stress test (work capacity, heart rate). Filling pressures, cardiac outpout, and stroke volume index were calculated from right-heart catheterization (Swan-Ganz) at rest and during exercise. Results indicate that there were no significant changes in relative heart volume, end-diastolic volume, ES-distance, resting heart rate, PCP at rest, and ejection fraction during exercise as a result of the training program. Shortening fraction showed a tendency to improve (not significant). Work capacity increased by 15 W (p less than 0.05) in the training group and by 28 W (1.5 METS, p less than 0.05) in the EF less than 30% training-group as compared with the control group. Cardiac output at rest decreased by 10% (p less than 0.05). Stroke-volume index increased in the EF greater than 30% training-group, while heart rate was reduced.(ABSTRACT TRUNCATED AT 250 WORDS)
Heller
R
R
Klinik Roderbirken der LVA Rheinprovinz, Leichlingen/Rhld. 1.
Blümchen
G
G
Zurmann
J
J
Jette
M
M
Bannies
H
H
Meiser
M
M
D002302:Cardiac Output / Q000502:physiology; D002303:Cardiac Output, Low / Q000503:physiopathology / Q000534:rehabilitation; D004562:Electrocardiography; D005080:Exercise Test; D005500:Follow-Up Studies; D006352:Heart Ventricles / Q000503:physiopathology; D006439:Hemodynamics / Q000502:physiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000503:physiopathology / Q000534:rehabilitation*; D010806:Physical Education and Training; D010809:Physical Fitness / Q000502:physiology
Vierwöchiges Training bei Patienten mit grossem Vorderwandinfarkt: Vergleich zu einer randomisierten nichttrainierenden Kontrollgruppe.