Determinants of Interindividual Variation in Exercise-Induced Cardiac Troponin I Levels.

ABSTRACT: Background Postexercise cardiac troponin levels show considerable interindividual variations. This study aimed to identify the major determinants of this postexercise variation in cardiac troponin I (cTnI) following 3 episodes of prolonged high-intensity endurance exercise. Methods and Results Study subjects were recruited among prior participants in a study of recreational cyclists completing a 91-km mountain bike race in either 2013 or 2014 (first race). In 2018, study participants completed a cardiopulmonary exercise test 2 to 3 weeks before renewed participation in the same race (second race). Blood was sampled before and at 3 and 24 hours following all exercises. Blood samples were analyzed using the same Abbot high-sensitivity cTnI STAT assay. Fifty-nine individuals (aged 50±9 years,

SUBMITTER: Bjorkavoll-Bergseth M 

PROVIDER: S-EPMC8649268 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature