earticle

영어

The purpose of this study is to investigate effects of exit criteria of maximal exercise stress test for patients with coronary artery diseases on hemodynamic responses, cardiopulmonary strength, and exercise prescription intensity. The subjects of this study were those who reached the maximum heart rate expected as 220-age (group A, n=65) and those who were stopped because of dyspnea (group B, n=65) during exercise stress test for patients with coronary artery diseases. The results of this study showed that the RHR and the MHR were significantly higher in group A than group B (p=.006, p=.000). No significant difference was found in the RSBP and the RDBP between the two groups. The MSBP was significantly higher in group A than group B(p=.029), while the MDBP showed no significant difference between the two. The MRPP was significantly higher in group A than group B (p=.000). The VO2max and the MMET were significantly higher in group A than group B, respectively (p=.010, p=.008). The MRPE was significantly lower in group A than group B (p=.000), while the MRER was significantly higher in group A than group B (p=.000). Group A was respectively significantly higher than in group B in 50%, 60% 70%, and 85% of the HRR (p=.000). Conclusively, the patients reached the maximum heart rate were shown to be possible of undergoing further test even when they reach the expected maximum heart rate without any heart event while monitoring the maximal RER, and exercise prescription based on expected maximum heart rate for age group for patients with cardiovascular diseases who are not administered of beta-blockers and calcium-channel blockers (non-dihydropyidines) may be too lower in intensity for the patients reached the maximum heart rate but may excess safety limit for those who were stopped because of dyspnea.