TY - JOUR
T1 - Cardiac troponin increases among marathon runners in the Perth Marathon: the Troponin in Marathons (TRIM) study
AU - Hubble, K.M.
AU - Fatovich, Daniel
AU - Grasko, J.M.
AU - Vasikaran, Samuel
PY - 2009
Y1 - 2009
N2 - Objective: To determine the prevalence of elevated troponin levels after a marathon, and test for an association with reduced renal clearance.Design, setting and participants: Prospective observational study of entrants running the full (42 km) 2007 Perth Marathon, Western Australia.Main outcome measures: Elevated troponin levels (≥ 0.1 μg/L) after the race; pre- and post-race survey data, and biochemical parameters.Results: 27% of runners (92/346) enrolled in the study, of whom 88 (96%) completed it. Most were men (71%; 65/92); mean age was 43.1 years (SD, 9.8 years; range, 25–64 years) and mean body mass index (BMI) was 24.1 kg/m2. Raised troponin levels were seen in 32% of participants (28/88), the highest being 1.4 μg/L. The strongest predictor for developing elevated troponin levels was a decrease in weight (odds ratio [OR], 2.15; 95% CI, 1.27–3.65). Creatinine increase was also associated with elevated troponin levels (OR, 1.03; 95% CI, 1.01–1.06), but pre-race estimated glomerular filtration rate, age, sex, BMI, training factors, marathon experience and race time were not. Most runners (99%; 87/88) had elevated levels of ischaemia-modified albumin after the race.Conclusions: Troponin level increases were common among marathon finishers. The strongest predictors were weight loss and an increase in creatinine levels, suggesting that reduced renal clearance is an associated factor. Further study is needed to determine the clinical significance of these findings, and to understand the mechanism.
AB - Objective: To determine the prevalence of elevated troponin levels after a marathon, and test for an association with reduced renal clearance.Design, setting and participants: Prospective observational study of entrants running the full (42 km) 2007 Perth Marathon, Western Australia.Main outcome measures: Elevated troponin levels (≥ 0.1 μg/L) after the race; pre- and post-race survey data, and biochemical parameters.Results: 27% of runners (92/346) enrolled in the study, of whom 88 (96%) completed it. Most were men (71%; 65/92); mean age was 43.1 years (SD, 9.8 years; range, 25–64 years) and mean body mass index (BMI) was 24.1 kg/m2. Raised troponin levels were seen in 32% of participants (28/88), the highest being 1.4 μg/L. The strongest predictor for developing elevated troponin levels was a decrease in weight (odds ratio [OR], 2.15; 95% CI, 1.27–3.65). Creatinine increase was also associated with elevated troponin levels (OR, 1.03; 95% CI, 1.01–1.06), but pre-race estimated glomerular filtration rate, age, sex, BMI, training factors, marathon experience and race time were not. Most runners (99%; 87/88) had elevated levels of ischaemia-modified albumin after the race.Conclusions: Troponin level increases were common among marathon finishers. The strongest predictors were weight loss and an increase in creatinine levels, suggesting that reduced renal clearance is an associated factor. Further study is needed to determine the clinical significance of these findings, and to understand the mechanism.
M3 - Article
SN - 0025-729X
VL - 190
SP - 91
EP - 93
JO - Medical Journal of Australia
JF - Medical Journal of Australia
IS - 2
ER -