Open AccessPredicting Maximal HR in Heart Failure Patients on β-Blockade Therapy
Author(s) -
Steven J. Keteyian,
Dalane W. Kitzman,
Faı̈ez Zannad,
Joel S. Landzberg,
J. Malcolm O. Arnold,
Peter H. Brubaker,
Clinton A. Brawner,
Daniel Bensimhon,
Anne S. Hellkamp,
Greg Ewald
Publication year - 2012
Publication title -
medicine and science in sports and exercise
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.703
H-Index - 224
eISSN - 1530-0315
pISSN - 0195-9131
DOI - 10.1249/mss.0b013e318234316f
Subject(s) - blockade , medicine , cardiology , heart failure , receptor
Standards for estimating maximal HR are important when interpreting the adequacy of physiologic stress during exercise testing, assessing chronotropic response, and prescribing an exercise training regimen. The equation 220 - age is used to estimate maximum HR; however, it overestimates measured maximal HR in patients taking β-adrenergic blockade (βB) therapy. This study developed and validated a practical equation to predict maximal HR in patients with heart failure (HF) taking βB therapy.