Why the study?
To examine the exercise-induced release of cardiac troponin T in adolescent and adult swimmers.
Does maximal swimming exercise induce different release patterns of cardiac troponin T in adolescent versus adult male swimmers?
Does maximal swimming exercise induce different release patterns of cardiac troponin T in adolescent versus adult male swimmers?
Intense swimming exercise induces significant cardiac troponin T release in both adolescent and adult trained swimmers, frequently exceeding the cutoff for myocardial infarction, with adolescents showing a delayed elevation compared to adults.
Answers are grounded in this paper and cite their sources.
Post-exercise cTnT elevations in swimmers warrant interpretive caution; leaves open age-specific thresholds for adolescents versus adults.
To examine the exercise-induced release of cardiac troponin T (cTnT) in adolescent and adult swimmers. Thirty-two trained male (18 adolescents, 14 adults) swam at maximal pace in a 45 min distance trial, and blood samples were drawn before, immediately and 3 h after exercise for subsequent cTnT analysis and comparison. Having comparable training experience and baseline values of cTnT (p = 0.78 and p = 0.13), adults exercised at lower absolute and relative intensity (p < 0.001 and p < 0.001, respectively), but presented higher immediate cTnT after exercise than adolescents (p < 0.001). Despite that, peak concentrations were observed at 3 h post exercise and peak elevations were comparable between groups (p = 0.074). Fourteen (44%) apparently healthy subjects exceeded the cutoff value for myocardial infarction (MI). Adolescents presented a delayed elevation of cTnT compared with adults, but achieved similar peak values.
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Cirer-Sastre et al. (2021) studied this question.
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