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

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2015
Author
Legaz Arrese, Alejandro
López Laval, Isaac
George, Keith
Puente Lanzarote, Juan José
Moliner Urdiales, Diego
Ayala Tajuelo, Vicente Javier
Mayolas Pi, Mª Carmen
Reverter Masià, Joaquín
Suggested citation
Legaz Arrese, Alejandro; López Laval, Isaac; George, Keith; Puente Lanzarote, Juan José; Moliner Urdiales, Diego; Ayala Tajuelo, Vicente Javier; ... Reverter Masià, Joaquín. (2015) . Individual variability in cardiac biomarker release after 30 min of high-intensity rowing in elite and amateur athletes. Applied Physiology Nutrition And Metabolism, 2015, vol. 40, núm. 9, p. 951-958. https://doi.org/10.1139/apnm-2015-0055.
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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.
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http://hdl.handle.net/10459.1/62947
DOI
https://doi.org/10.1139/apnm-2015-0055
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Applied Physiology Nutrition And Metabolism, 2015, vol. 40, núm. 9, p. 951-958
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