Cardiac troponin T in female athletes during a two-day mountain marathon.
Scott Med J
; 48(2): 41-2, 2003 May.
Article
em En
| MEDLINE
| ID: mdl-12774593
ABSTRACT
BACKGROUND:
Equivocal studies exist on the potential of cardiac damage following prolonged endurance exercise.AIMS:
The aim of the study was to examine humoral markers of cardiac damage in female athletes during a 2-day mountain endurance race.METHODS:
Venous blood samples were drawn from seven female competitors prior to, and immediately following day-1 and day-2 of the event. The serum was analysed for total creatine kinase (CK), creatine kinase isoenzyme MB (CKMB), and cardiac troponin T (cTnT).RESULTS:
Elevations in CK and CKMB were apparent following day-1 of the event (mean +/- SD; CK 84.1 +/- 54.6 mg/L vs. 387 +/- 276.7 mg/L, CKMB 2 +/- 1.7 mg/L vs. 5.9 +/- 1.7 mg/L) and subsequently rose further following race completion (CK 743 +/- 500 mg/L, CKMB 11.9 +/- 4.9 mg/L). Elevations in cTnT were noted in three competitors following day-1 cTNT (range 0.013-0.044 mg/L) and remained elevated in two competitors following day-2 (range 0.014-0.017 mg/L).CONCLUSIONS:
The elevations in cTnT likely represent release from the cytosolic fraction. The mechanism responsible for such release is yet to be elucidated.
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Base de dados:
MEDLINE
Assunto principal:
Resistência Física
/
Esportes
/
Troponina T
Limite:
Adult
/
Female
/
Humans
/
Middle aged
Idioma:
En
Ano de publicação:
2003
Tipo de documento:
Article