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: Artículo (PostPrint)
Área (Departamento): Área Educación Física y Depor. (Dpto. Fisiatría y Enfermería)
Debe reconocer adecuadamente la autoría, proporcionar un enlace a la licencia e indicar si se han realizado cambios. Puede hacerlo de cualquier manera razonable, pero no de una manera que sugiera que tiene el apoyo del licenciador o lo recibe por el uso que hace. No puede utilizar el material para una finalidad comercial. Si remezcla, transforma o crea a partir del material, no puede difundir el material modificado.
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: Artículo (PostPrint)
Área (Departamento): Área Educación Física y Depor. (Dpto. Fisiatría y Enfermería)
Debe reconocer adecuadamente la autoría, proporcionar un enlace a la licencia e indicar si se han realizado cambios. Puede hacerlo de cualquier manera razonable, pero no de una manera que sugiera que tiene el apoyo del licenciador o lo recibe por el uso que hace. No puede utilizar el material para una finalidad comercial. Si remezcla, transforma o crea a partir del material, no puede difundir el material modificado.Fecha de embargo : 2025-08-29
Exportado de SIDERAL (2024-09-26-10:59:20)
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