| pubmed-article:15523326 | pubmed:abstractText | The use of beta-adrenergic blockade (BB) therapy is common among patients with coronary heart disease (CHD), and as a result, these patients often undergo exercise testing while taking these medications. However, evaluation of maximal voluntary effort during exercise testing is often in question because current equations to predict maximum heart rate (HR(max); eg, 220 - age) are based on subjects without heart disease or BB therapy. The purpose of this study was to develop and validate an age-specific equation to predict HR(max) in patients with CHD who are receiving BB therapy. | lld:pubmed |
