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Cirer-Sastre R, Jiménez-Gaytán R, Carranza-García LE, George K, Apple FS, Navarro-Orocio R, López-García R, Reverter-Masía J, Mayolas-Pi C, Morales-Corral PG, Legaz-Arrese A. A comparison of modelled serum cTnT and cTnI kinetics after 60 min swimming. Biomarkers 2022; 27:619-624. [PMID: 35603441 DOI: 10.1080/1354750x.2022.2080272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Post-exercise elevations of cardiac troponin T (cTnT) and I (cTnI) are often used in isolation but interpreted interchangeably. Research suggests, however, that post-exercise cTn kinetic might differ with each isoform. In this cross-sectional observational study, we collected blood samples before, immediately after (5 minutes), and at 1-, 3-, 6-, 12-, and 24-hours post-exercise in a mixed cohort of 56 participants after a 60-min (age range from 14 to 22, 57.1% female). swimming trial. Cardiac troponin kinetics were modeled using Bayesian mixed-effects models to estimate time to peak (TTP) and peak concentration (PC) for each isoform, while controlling for participants sex, tanner stage and average relative heart rate during the test. Exercise induced an elevation of cTnT and cTnI in 93% and 75% of the participants, respectively. Cardiac troponin T peaked earlier, at 2.9 h (CI: 2.6 - 3.2 h) post-exercise, whereas cTnI peaked later, at 4.5 h (CI: 4.2 - 4.9 h). Peak concentrations for cTnT and cTnI were 2.5 ng/L, CI: 0 - 11.2 ng/L and 2.16 ng/L, CI: 0 - 22.7 ng/L, respectively. Additionally, we did not observe a systematic effect of sex and maturational status mediating cTn responses.
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Affiliation(s)
- Rafael Cirer-Sastre
- Institut Nacional d'Educació Física de Catalunya (INEFC), Universitat de Lleida (UdL), Lleida, Spain
| | | | | | - Keith George
- Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, UK
| | - Fred S Apple
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN, USA
| | | | - Ricardo López-García
- Autonomous University of Nuevo Leon, School of Sports Organization, Nuevo León, Mexico
| | - Joaquín Reverter-Masía
- Research Group Human Movement, Departament de Didàctiques Específiques, University of Lleida, Av. de l'Estudi General, Lleida, Spain
| | - Carmen Mayolas-Pi
- Research Group in Development Movimiento Humano, Universidad de Zaragoza, Zaragoza, Spain
| | | | - Alejandro Legaz-Arrese
- Research Group in Development Movimiento Humano, Universidad de Zaragoza, Zaragoza, Spain
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