Cardiac troponin I is released following highintensity short-duration exercise in healthy humans.
Low, David A.
MetadataDangos cofnod eitem llawn
It has been previously shown that cardiac troponin (cTn) is released in response to prolonged endurance exercise. The influence of short-duration high-intensity exercise upon the release of cTn is not known. We examined cardiac troponin I (cTnI) release pre-, during and post-30 min of high-intensity running exercise in eight recreationally active males (age 29 ± 3 years; VO2peak 53 ± 11 ml kg min−1). Following exercise, cTnI increased in six of the eight participants. Four participants showed a minimal response (< 0.05 µg/l) post-exercise. In contrast, two participants showed a progressive increase in cTnI (> 0.1 µg/l) following exercise which peaked 3–4 h post-exercise. cTnI returned below the detection limit of the assay in all bar one of the participants 24 h post-exercise. These data are the first to show that cTnI can be released following short-duration high-intensity exercise. Clinicians should be aware that exercise-induced release of cTnI is not limited to prolonged endurance activity.
International Journal of Cardiology;
International Journal of Cardiology. Volume 145, Issue 2, 19 November 2010, Pages 337–339
Dynodwr Gwrthrych Digidol (DOI)http://dx.doi.org/10.1016/j.ijcard.2009.12.001
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