Impact of an endurance training program on exercise-induced cardiac biomarker release

Am J Physiol Heart Circ Physiol. 2015 Apr 15;308(8):H913-20. doi: 10.1152/ajpheart.00914.2014. Epub 2015 Feb 13.


We evaluated the influence of a 14-wk endurance running program on the exercise-induced release of high-sensitivity cardiac troponin T (hs-cTnT) and NH2-terminal pro-brain natriuretic peptide (NT-proBNP). Fifty-eight untrained participants were randomized to supervised endurance exercise (14 wk, 3-4 days/wk, 120-240 min/wk, 65-85% of maximum heart rate) or a control group. At baseline and after the training program, hs-cTnT and NT-proBNP were assessed before and 5 min, 1 h, 3 h, 6 h, 12 h, and 24 h after a 60-min maximal running test. Before training, hs-cTnT was significantly elevated in both groups with acute exercise (P < 0.0001) with no between-group differences. There was considerable heterogeneity in peak hs-cTnT concentration with the upper reference limit exceeded in 71% of the exercise tests. After training, both baseline and postexercise hs-cTnT were significantly higher compared with pretraining and the response of the control group (P = 0.008). Acute exercise led to a small but significant increase in NT-proBNP, but this was not mediated by training (P = 0.121). In summary, a controlled endurance training intervention resulted in higher pre- and postexercise values of hs-cTnT with no changes in NT-proBNP.

Keywords: NH2-terminal pro-brain natriuretic peptide; endurance training; exercise; high-sensitivity cardiac troponin T.

Publication types

  • Randomized Controlled Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Adult
  • Biomarkers / blood
  • Female
  • Heart / physiology*
  • Humans
  • Male
  • Myocardium / metabolism
  • Natriuretic Peptide, Brain / blood*
  • Peptide Fragments / blood*
  • Resistance Training*
  • Troponin T / blood*


  • Biomarkers
  • Peptide Fragments
  • Troponin T
  • pro-brain natriuretic peptide (1-76)
  • Natriuretic Peptide, Brain