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Individual variability in cardiac biomarker release after 30 min of high-intensity rowing in elite and amateur athletes

Legaz-Arrese, A and Lopez-Laval, I and George, KP and Jose Puente-Lanzarote, J and Moliner-Urdiales, D and Javier Ayala-Tajuelo, V and Mayolas-Pi, C and Reverter-Masia, J (2015) Individual variability in cardiac biomarker release after 30 min of high-intensity rowing in elite and amateur athletes. APPLIED PHYSIOLOGY NUTRITION AND METABOLISM, 40 (9). pp. 951-958. ISSN 1715-5312

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Abstract

This study had two objectives: (i) to examine individual variation in the pattern of cardiac troponin I (cTnI) and N-terminal pro-brain natriuretic peptide (NT-proBNP) release in response to high-intensity rowing exercise, and (ii) to establish whether individual heterogeneity in biomarker appearance was influenced by athletic status (elite vs. amateur). We examined cTnI and NT-proBNP in 18 elite and 14 amateur rowers before and 5 min, 1, 3, 6, 12, and 24 h after a 30-min maximal rowing test. Compared with pre-exercise levels, peak postexercise cTnI (pre: 0.014 ± 0.030 μg·L–1; peak post: 0.058 ± 0.091 μg·L–1; p = 0.000) and NT-proBNP (pre: 15 ± 11 ng·L–1; peak post: 31 ± 19 ng·L–1; p = 0.000) were elevated. Substantial individual heterogeneity in peak and time-course data was noted for cTnI. Peak cTnI exceeded the upper reference limit (URL) in 9 elite and 3 amateur rowers. No rower exceeded the URL for NT-proBNP. Elite rowers had higher baseline (0.019 ± 0.038 vs. 0.008 ± 0.015 μg·L–1; p = 0.003) and peak postexercise cTnI (0.080 ± 0.115 vs. 0.030 ± 0.029 μg·L–1; p = 0.022) than amateur rowers, but the change with exercise was similar between groups. There were no significant differences in baseline and peak postexercise NT-proBNP between groups. In summary, marked individuality in the cTnI response to a short but high-intensity rowing bout was observed. Athletic status did not seem to affect the change in cardiac biomarkers in response to high-intensity exercise.

Item Type: Article
Uncontrolled Keywords: 06 Biological Sciences, 11 Medical And Health Sciences
Subjects: R Medicine > RC Internal medicine > RC1200 Sports Medicine
Divisions: Sport & Exercise Sciences
Publisher: NRC Research Press
Related URLs:
Date Deposited: 11 Mar 2016 14:06
Last Modified: 11 Mar 2016 14:06
DOI or Identification number: 10.1139/apnm-2015-0055
URI: http://researchonline.ljmu.ac.uk/id/eprint/3169

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