A b s t r a c tBackground: Cardiac

A b s t r a c t
Background: Cardiac rehabilitation in patients after myocardial infarction (MI) is a component of secondary prevention that
has an established role in the current guidelines.
Aim: To determine the effect of physical training on exercise capacity parameters determined on the basis of cardiopulmonary
exercise test (CPET) in patients after MI. We also evaluated the relationship between the number of training sessions and
exercise capacity.
Methods: We prospectively evaluated 52 patients after MI who underwent percutaneous coronary intervention of the
infarct-related artery. At the start of the training, patients had no symptoms of heart failure and coronary artery disease. Electrocardiographic
exercise test was performed 4 to 6 weeks after MI, followed by CPET in patients with a negative stress test.
After determination of the initial exercise capacity, patients underwent 12 training sessions on a cycle ergometer with a workload
determined on the basis of anaerobic threshold or heart rate reserve. After 12 training sessions, CPET was performed,
followed by another 12 training sessions and a follow-up CPET.
Results: All patients showed a significant increase in exercise capacity parameters: energy expenditure during CPET increased
from 9.39 to 11.79 METs, peak oxygen uptake (VO2peak) increased from 32.32 to 39.25 mL/kg/min (p < 0.001), and oxygen
uptake at the anaerobic threshold increased from 18.34 to 24.65 mL/kg min (p < 0.001). The initial 12 training sessions resulted
in a statistically significant increase in VO2peak from 32.32 to 36.75 mL/kg/min (p = 0.003), while subsequent 12 training
sessions were related with an insignificant increase in VO2peak from 36.75 to 39.25 mL/kg/min (p = 0.065).
Conclusions: Regular physical activity improves exercise capacity as measured by CPET. A statistically significant improvement
in exercise capacity was seen already after initial 12 training sessions, while another 12 training sessions were associated with
smaller benefits.

ผลลัพธ์ (อังกฤษ) 2:

A Bstract
Background: Cardiac rehabilitation in patients after myocardial infarction (MI) is a Component of Secondary Prevention that
has an established role in the current guidelines.
Aim: To Determine the Effect of physical Training on exercise capacity Parameters determined on the basis of cardiopulmonary
exercise. test (CPET) in patients after MI. We also evaluated the Relationship between the Number of Training Sessions and
exercise capacity.
Methods: We prospectively evaluated 52 patients underwent percutaneous coronary intervention after MI Who of the
infarct-related artery. At the start of the training, patients had no symptoms of heart failure and coronary artery disease. Electrocardiographic
exercise Test was performed 4 to 6 weeks after MI, followed by CPET in patients with a negative Stress Test.
After determination of the Initial exercise capacity, patients underwent 12 Training Sessions on a Cycle ERGOMETER with a workload
determined on the basis of anaerobic THRESHOLD. or heart rate reserve. After 12 Training Sessions, CPET was performed,
followed by another 12 Training Sessions and a follow-up CPET.
Results: All patients Showed a significant increase in exercise capacity Parameters: Energy expenditure during CPET Increased
from nine thirty-nine to 11.79 METS, Peak Oxygen uptake (. VO2peak) Increased from 32.32 to 39.25 mL / kg / min (P <0.001), and Oxygen
uptake at the anaerobic THRESHOLD Increased from 18:34 to 24.65 mL / min kg (P <0.001). The Initial 12 Training Sessions resulted
in a statistically significant increase in VO2peak from 32.32 to 36.75 mL / kg / min (P = 0.003), while Subsequent 12 Training
Sessions were related with an insignificant increase in VO2peak from 36.75 to 39.25 mL / kg / min. (P = 0.065).
Conclusions: Regular physical exercise capacity as measured by CPET Activity improves. A statistically significant Improvement
in exercise capacity was seen already after 12 Initial Training Sessions, while another 12 Sessions Training were associated with
smaller Benefits.