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  • Title: Individual variability of high-sensitivity cardiac troponin levels after aerobic exercise is not mediated by exercise mode.
    Author: Legaz-Arrese A, López-Laval I, George K, José Puente-Lanzarote J, Castellar-Otín C, Reverter-Masià J, Munguía-Izquierdo D.
    Journal: Biomarkers; 2015; 20(4):219-24. PubMed ID: 26301879.
    Abstract:
    We compared the response of high-sensitivity cardiac troponin T (hs-cTnT) after 60 min of swimming, running and cycling in well-trained triathletes. The maximal increase in hs-cTnT was similar in all exercise bouts (swimming 453%, cycling 349% and running 471%) although there was substantial individual variability in peak hs-cTnT. The post-exercise kinetics for hs-cTnT was consistent. The change in hs-cTnT was correlated between trials. In all trials, hs-cTnT had largely returned to baseline levels 24 h post-exercise. In summary, an increase in hs-cTnT was apparent in all triathletes independent of exercise mode and despite variable peak data the consistent kinetics over 24 h post-exercise would suggest this represents a physiological phenomenon.
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