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Sex differences in release of cardiac troponin T after endurance exercise.

Kong, Z and Nie, J and Lin, H and George, KP and Zhao, G and Zhang, H and Tong, TK and Shi, Q (2016) Sex differences in release of cardiac troponin T after endurance exercise. Biomarkers. ISSN 1354-750X

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Sex differences in release of cardiac troponin T after endurance exercise..pdf - Accepted Version
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Abstract

CONTEXT: Post-exercise cardiac troponin release has been extensively described in athletic groups but little attention has been given to any role of sex in mediating this phenomenon. OBJECTIVE: We compared the release of cardiac troponin T (cTnT) after endurance running in training-experience, biological-age and maturity-matched young male and female runners. MATERIALS AND METHODS: Nineteen male (training history: 2.3 ± 1.0 years; mean age: 16.1 ± 1.2 years; Tanner stage: 3.7 ± 0.6) and 19 female (training history: 2.2 ± 1.0 years; mean age: 15.9 ± 1.4 years; Tanner stage: 4.0 ± 0.4) runners performed a 21 km run with "all-out" effort. Serum cTnT levels were assessed at pre-exercise (Pre-ex) and at 4 h post-exercise (Post-ex). RESULTS: At Pre-ex, cTnT concentrations were below the 99th percentile value (10 ng.l(-1)) in 32/38 runners. Post-ex cTnT increased in all subjects but the response was substantially higher (p < 0.05) in males [median (range): 210 (20-1360) ng.l(-1)] than females [median (range): 80 (10-550) ng.l(-1)]. At Post-ex, 95% (95% confidence interval: 75-99%) of males and 63% (95% confidence interval: 41-81%) of females (p < 0.05) had cTnT concentrations above the cut-off for acute myocardial infarction. CONCLUSIONS: The present data suggest that post-exercise cTnT elevation occurs in all runners but is augmented in young male compared to female athletes.

Item Type: Article
Additional Information: This is an Accepted Manuscript of an article published by Taylor & Francis in Biomarkers on 8th December 2016, available online: http://www.tandfonline.com/10.1080/1354750X.2016.1265007
Uncontrolled Keywords: 1002 Environmental Biotechnology
Subjects: R Medicine > RC Internal medicine > RC1200 Sports Medicine
Divisions: Sport & Exercise Sciences
Publisher: Taylor & Francis
Related URLs:
Date Deposited: 14 Feb 2017 09:48
Last Modified: 06 Sep 2017 18:00
DOI or Identification number: 10.1080/1354750X.2016.1265007
URI: http://researchonline.ljmu.ac.uk/id/eprint/5512

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