Abstract
Objectives: Post-exercise cardiac troponin T (cTnT) release has been widely reported in adult athletes but limited data is available for adolescents. The aim of this study was to determine the incidence and magnitude of cTnT appearance in a large group of adolescent runners, and to determine any association between cTnT release and personal characteristics of adolescents.
Methods: We recruited 63 adolescent runners (mean±SD: age 16.4±1.5 years; 10 females) who all completed a simulated half-marathon race (an all-out 21-km run) during routine training. Personal data collected included age, training history, 21-km run performance as well as pre-post exercise serum cTnT levels. Serum cTnT was assayed using a 3rd generation assay.
Results: At pre-exercise, cTnT concentrations were below the 0.01 μg/L cTnT detection limit of assay in 58/63 runners. The post-exercise cTnT level (range: < 0.01-1.36 μg/L) was significantly (p < 0.001) greater than that of the pre-exercise (range: < 0.01-0.02 μg/L). After the exercise, 57 (90%) and 44 (70%) subjects had cTnT concentrations above the detection: 0.01, and clinical thresholds: 0.05 μg/L, respectively. Post-exercise cTnT was inversely correlated with training years (r=-0.25, p < 0.05) and age (r=-0.31, p < 0.05). Compared with runners who had trained for ≥ 3 years, runners with less training experience demonstrated increased post-race cTnT levels (p < 0.01).
Conclusion: cTnT increases are virtually universal among adolescent runners following a 21-km run during routine training and can reach levels typically diagnostic for acute myocardial infarction potentially initiating diagnostic dilemmas. Adolescents with less training experience had higher post-exercise cTnT.
Keywords: Adolescent athletes, cardiac troponin T, endurance exercise, training, acute myocardial infarction, diagnostic dilemmas, Serum, cardiac troponin I, release kinetics, 3rd generation assay
Current Medicinal Chemistry
Title: The Influence of a Half-Marathon Race Upon Cardiac Troponin T Release in Adolescent Runners
Volume: 18 Issue: 23
Author(s): J. Nie, K. P. George, T. K. Tong, D. Gaze, Y. Tian, H. Lin and Q. Shi
Affiliation:
Keywords: Adolescent athletes, cardiac troponin T, endurance exercise, training, acute myocardial infarction, diagnostic dilemmas, Serum, cardiac troponin I, release kinetics, 3rd generation assay
Abstract: Objectives: Post-exercise cardiac troponin T (cTnT) release has been widely reported in adult athletes but limited data is available for adolescents. The aim of this study was to determine the incidence and magnitude of cTnT appearance in a large group of adolescent runners, and to determine any association between cTnT release and personal characteristics of adolescents.
Methods: We recruited 63 adolescent runners (mean±SD: age 16.4±1.5 years; 10 females) who all completed a simulated half-marathon race (an all-out 21-km run) during routine training. Personal data collected included age, training history, 21-km run performance as well as pre-post exercise serum cTnT levels. Serum cTnT was assayed using a 3rd generation assay.
Results: At pre-exercise, cTnT concentrations were below the 0.01 μg/L cTnT detection limit of assay in 58/63 runners. The post-exercise cTnT level (range: < 0.01-1.36 μg/L) was significantly (p < 0.001) greater than that of the pre-exercise (range: < 0.01-0.02 μg/L). After the exercise, 57 (90%) and 44 (70%) subjects had cTnT concentrations above the detection: 0.01, and clinical thresholds: 0.05 μg/L, respectively. Post-exercise cTnT was inversely correlated with training years (r=-0.25, p < 0.05) and age (r=-0.31, p < 0.05). Compared with runners who had trained for ≥ 3 years, runners with less training experience demonstrated increased post-race cTnT levels (p < 0.01).
Conclusion: cTnT increases are virtually universal among adolescent runners following a 21-km run during routine training and can reach levels typically diagnostic for acute myocardial infarction potentially initiating diagnostic dilemmas. Adolescents with less training experience had higher post-exercise cTnT.
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Cite this article as:
Nie J., P. George K., K. Tong T., Gaze D., Tian Y., Lin H. and Shi Q., The Influence of a Half-Marathon Race Upon Cardiac Troponin T Release in Adolescent Runners, Current Medicinal Chemistry 2011; 18 (23) . https://dx.doi.org/10.2174/092986711796642625
DOI https://dx.doi.org/10.2174/092986711796642625 |
Print ISSN 0929-8673 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-533X |
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