Key result
The Karvonen formula significantly underestimated the heart rate at the anaerobic threshold in beta-blocked patients post-myocardial infarction (91±5 vs 102±17 bpm, P<0.0001).
Why the study?
Does a modified Karvonen formula better estimate the heart rate at the anaerobic threshold compared to the standard Karvonen formula in post-MI patients on beta-blockers?
Observational (n=115)
Yes
Does a modified Karvonen formula better estimate the heart rate at the anaerobic threshold compared to the standard Karvonen formula in post-MI patients on beta-blockers?
Absolute Event Rate: 91% vs 102%
p-value: p=<0.0001
A modified Karvonen formula more accurately estimates the anaerobic threshold for exercise training in post-MI patients on beta-blockers, preventing potential undertraining.
No takes yet. Share an insight, caveat, or question.
May warrant adjusted targets to avoid undertraining in beta-blocked post-MI patients; leaves open prospective validation of modified Karvonen formula.
Tabet et al. (2006) conducted an observational in Myocardial infarction (n=115). Karvonen formula vs. Heart rate at the anaerobic threshold was evaluated on Heart rate at the anaerobic threshold compared to Karvonen training heart rate (p=<0.0001). The Karvonen formula significantly underestimated the heart rate at the anaerobic threshold in beta-blocked patients post-myocardial infarction (91±5 vs 102±17 bpm, P<0.0001).
Synapse has enriched 2 closely related papers on similar clinical questions. Consider them for comparative context: