R wave changes in patients with myocardial infarction during treadmill stress testing.

@article{Sada1983RWC,
  title={R wave changes in patients with myocardial infarction during treadmill stress testing.},
  author={Toshikatsu Sada and Kuan Min Su and Naoji Amano and Norio Hayashi and Ineko Tawara and Masaaki Takeuchi},
  journal={Japanese circulation journal},
  year={1983},
  volume={47 9},
  pages={
          1060-4
        }
}
A graded multistage treadmill exercise test was performed on 78 patients with myocardial infarction (65 males and 13 females, ranging in age from 30 to 76). The amplitude of the R wave in CC5 was measured at rest and during the periods of peak exercise. The exercise-induced R wave changes were classified into 3 groups: increased, 39.1%; no changes, 39.7% and decreased, 22.2%. Acute attacks of myocardial infarction were more severe in the patients whose R wave decreased during exercise than in… CONTINUE READING