title: Cardiac troponin I release after a basketball match in elite, amateur and junior players.
abstract: BACKGROUND
  Available scientific data related to cardiac troponin I (cTnI) release after intermittent exercise is limited. It is also of interest to determine what personal or environmental factors mediate the exercise-induced release of cTnI. This study had two objectives: 1) to examine the individual release of cTnI to a basketball match; and 2) to establish the influence of athlete status as well as biological age on cTnI release.
  
  
  METHODS
  Thirty-six basketball players (12 adult elite [PBA]: 27.3±4.1 years, 12 adult amateur [ABA]: 29.6±2.9 years, and 12 junior elite [JBA]: 16.6±0.9 years) participated in a simulated basketball match with serial assessment of cTnI at rest, immediately post- and at 1, 3, 6, 12, and 24 h post-exercise.
  
  
  RESULTS
  The basketball match increased cTnI levels (pre: median [range]; 0.006 [0.001-0.026]; peak post: 0.024 [0.004-0.244] μg/L; p=0.000), with substantial individual variability in peak values. PBA and JBA players showed higher baseline and post-exercise cTnI values than ABA (all p<0.05). Peak cTnI exceeded the upper reference limit (URL) in the 26% of players (3 PBA; 6 JBA).
  
  
  CONCLUSIONS
  The current results suggest that intermittent exercise can promote the appearance of cTnI and that this is potentially mediated by athlete status.
authors.forename: Isaac
authors.initials: I
authors.lastname: López-Laval
authors.forename: Alejandro
authors.initials: A
authors.lastname: Legaz-Arrese
authors.forename: Keith
authors.initials: K
authors.lastname: George
authors.forename: Olga
authors.initials: O
authors.lastname: Serveto-Galindo
authors.forename: José María
authors.initials: JM
authors.lastname: González-Rave
authors.forename: Joaquín
authors.initials: J
authors.lastname: Reverter-Masia
authors.forename: Diego
authors.initials: D
authors.lastname: Munguía-Izquierdo
mesh_terms: D000293:Adolescent; D000328:Adult; D056352:Athletes; D001490:Basketball; D004562:Electrocardiography; D015444:Exercise; D006339:Heart Rate / Q000502:physiology; D006801:Humans; D007118:Immunoassay; D008163:Luminescent Measurements; D008297:Male; D009206:Myocardium / Q000378:metabolism*; D011795:Surveys and Questionnaires; D019210:Troponin I / Q000097:blood*; D055815:Young Adult
chemical_list: D019210:Troponin I