Relationship of Left Ventricular Structure to Maximal Heart Rate During Exercise

  • Graettinger W
  • Smith D
  • Neutel J
 et al. 
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Previous investigators using clinical, hemodynamic, or exercise parameters to predict maximal exercise heart rate (HRmax) have demonstrated age to be the major determinant. Regression coefficients have ranged from –0.3 to –0.6, leaving approximately two thirds of the variance in HRmax unexplained. Because cardiac size and function are directly related to stroke volume and should influence HRmax, we studied 114 male subjects (aged 19 to 73 years) with two-dimensional and M-mode echocardiography who underwent maximal treadmill testing with respiratory gas analysis. Seventy-three were normotensive (diastolic BP

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  • William F. Graettinger

  • David H.G. Smith

  • Joel M. Neutel

  • Jonathan Myers

  • Victor F. Froelicher

  • Michael A. Weber

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