Immediate and 24-h post-marathon cardiac troponin T is associated with relative exercise intensity
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Título
Immediate and 24-h post-marathon cardiac troponin T is associated with relative exercise intensityAutoría
Fecha de publicación
2020-05-28Editor
SpringerCita bibliográfica
MARTÍNEZ-NAVARRO, Ignacio; SÁNCHEZ-GÓMEZ, Juan M.; SANMIGUEL, D.; COLLADO-BOIRA, Eladio; HERNANDO, Barbara; PANIZO, Nayara; HERNANDO, Carlos (2020). Immediate and 24-h post-marathon cardiac troponin T is associated with relative exercise intensity. European Journal of Applied Physiology, v. 120, p. 1723–1731Tipo de documento
info:eu-repo/semantics/articleVersión de la editorial
https://link.springer.com/article/10.1007/s00421-020-04403-8Versión
info:eu-repo/semantics/sumittedVersionPalabras clave / Materias
Resumen
Purpose We aimed at exploring whether cardiopulmonary ftness, echocardiographic measures and relative exercise intensity
were associated with high-sensitivity cardiac troponin T (hs-TNT) rise and normalization following ... [+]
Purpose We aimed at exploring whether cardiopulmonary ftness, echocardiographic measures and relative exercise intensity
were associated with high-sensitivity cardiac troponin T (hs-TNT) rise and normalization following a marathon.
Methods Nighty-eight participants (83 men, 15 women; 38.72±3.63 years) were subjected to echocardiographic assessment
and a cardiopulmonary exercise test (CPET) before the race. hs-TNT was measured before, immediately after and at 24, 48,
96, 144 and 192 h post-race. Speed and mean heart rate (HR) during the race were relativized to CPET values: peak speed
(%VVMAX), peak HR (HR%MAX), speed and HR at the second ventilatory threshold (HR%VT2 and %VVT2).
Results Hs-TNT increased from pre- to post-race (5.74±5.29 vs. 50.4±57.04 ng/L; p<0.001), seeing values above the
Upper Reference Limit (URL) in 95% of the participants. At 24 h post-race, 39% of the runners still exceeded the URL
(High hs-TNT group). hs-TNT rise was correlated with marathon speed %VVT2 (r=0.22; p=0.042), mean HR%VT2 (r=0.30;
p=0.007), and mean HR%MAX (r=0.32; p=0.004). Moreover, the High hs-TNT group performed the marathon at a higher
Speed %VVT2 (88.21±6.53 vs. 83.49±6.54%; p=0.002) and Speed %VVMAX (72±4.25 vs. 69.40±5.53%; p=0.009). hsTNT showed no signifcant associations with cardiopulmonary ftness and echocardiographic measures, except for a slight
correlation with left ventricular end systolic diameter (r=0.26; p=0.018).
Conclusion Post-race hs-TNT was above the URL in barely all runners. Magnitude of hs-TNT rise was correlated with
exercise mean HR; whereas, its normalization kept relationship with marathon relative speed. [-]
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European Journal of Applied Physiology (2020), v. 120Derechos de acceso
http://rightsstatements.org/vocab/CNE/1.0/
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
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