The kinetics of cardiac troponin T release during and after 1- and 6-h maximal cycling trials
Legaz-Arrese, Alejandro (Universidad de Zaragoza) ; Sitko, Sebastian (Universidad de Zaragoza) ; Cirer-Sastre, Rafel ; Mayolas-Pi, Carmen (Universidad de Zaragoza) ; Jiménez-Gaytán, Romario Rivelino ; Orocio, Ricardo Navarro ; García, Ricardo Lopez ; Corral, Pedro Gualberto Morales ; Reverter-Masia, Joaquín ; George, Keith ; Carranza-García, Luis Enrique
Resumen: Objectives: In this study, the effects of short-duration high-intensity exercise and long-duration exercise on high-sensitivity cardiac troponin T (hs-cTnT) levels were compared.
Methods: Twelve male amateur cyclists performed 1- and 6-h cycling trials. In both exercise trials, hs-cTnT was assessed at rest, immediately postexercise and at 1, 3, 6, 12, and 24 h postexercise. Additionally, hs-cTnT levels were assessed every hour during the 6-h trial.
Results: Exercise resulted in an increase in hs-cTnT levels in all subjects. Circulating hs-cTnT levels increased in both exercise trials (p < 0.001), with higher peak values occurring after the 1-h trial compared with those of the 6-h trial (p = 0.023). The upper reference limit (URL) exceeded 83 % of the participants in the 1-h trial and 42 % of the participants in the 6-h trial. There was substantial individual variability in peak hs-cTnT in both trials. Values of hs-cTnT were greater after exercise than during exercise for the 6-h trial. For both exercise trials, the maximum postexercise hs-cTnT values correlated with the %HRMAX (r = 0.906 for the 1-h trial, r = 0.735 for the 6-h trial). For the 1-h trial, the maximum postexercise hs-cTnT values were observed at 3 h in all subjects. No significant difference in the hs-cTnT values was observed for the 6-h trial during the first 12 h postexercise.
Conclusions: Our results demonstrated greater hs-cTnT levels in young male participants after a 1-h cycling trial than after a 6-h cycling trial, despite a substantially greater energy expenditure and total external work completed in the 6-h trial. Postexercise hs-cTnT values are associated with relative exercise intensity.
Idioma: Inglés
DOI: 10.1016/j.jsams.2024.08.207
Año: 2024
Publicado en: JOURNAL OF SCIENCE AND MEDICINE IN SPORT (2024), [6 pp.]
ISSN: 1440-2440
Tipo y forma: Article (PostPrint)
Área (Departamento): Área Educación Física y Depor. (Dpto. Fisiatría y Enfermería)
You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not use the material for commercial purposes. If you remix, transform, or build upon the material, you may not distribute the modified material.
Fecha de embargo : 2025-08-29
Exportado de SIDERAL (2024-09-26-10:59:20)
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Methods: Twelve male amateur cyclists performed 1- and 6-h cycling trials. In both exercise trials, hs-cTnT was assessed at rest, immediately postexercise and at 1, 3, 6, 12, and 24 h postexercise. Additionally, hs-cTnT levels were assessed every hour during the 6-h trial.
Results: Exercise resulted in an increase in hs-cTnT levels in all subjects. Circulating hs-cTnT levels increased in both exercise trials (p < 0.001), with higher peak values occurring after the 1-h trial compared with those of the 6-h trial (p = 0.023). The upper reference limit (URL) exceeded 83 % of the participants in the 1-h trial and 42 % of the participants in the 6-h trial. There was substantial individual variability in peak hs-cTnT in both trials. Values of hs-cTnT were greater after exercise than during exercise for the 6-h trial. For both exercise trials, the maximum postexercise hs-cTnT values correlated with the %HRMAX (r = 0.906 for the 1-h trial, r = 0.735 for the 6-h trial). For the 1-h trial, the maximum postexercise hs-cTnT values were observed at 3 h in all subjects. No significant difference in the hs-cTnT values was observed for the 6-h trial during the first 12 h postexercise.
Conclusions: Our results demonstrated greater hs-cTnT levels in young male participants after a 1-h cycling trial than after a 6-h cycling trial, despite a substantially greater energy expenditure and total external work completed in the 6-h trial. Postexercise hs-cTnT values are associated with relative exercise intensity.
Idioma: Inglés
DOI: 10.1016/j.jsams.2024.08.207
Año: 2024
Publicado en: JOURNAL OF SCIENCE AND MEDICINE IN SPORT (2024), [6 pp.]
ISSN: 1440-2440
Tipo y forma: Article (PostPrint)
Área (Departamento): Área Educación Física y Depor. (Dpto. Fisiatría y Enfermería)
You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not use the material for commercial purposes. If you remix, transform, or build upon the material, you may not distribute the modified material. Fecha de embargo : 2025-08-29
Exportado de SIDERAL (2024-09-26-10:59:20)
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Record created 2024-09-26, last modified 2024-09-26