The recent Baltimore City Marathon served as a nice reminder in a few cases that long-distance running and other ultra-endurance events can produce elevations in troponin levels. To review the non-cardiac-disease causes of troponin elevations:

sepsis, PE, COPD, carbon monoxide, intracranial abnormalities (including SAH, stroke, IC hemorrhage, seizures), ESRD, rhabdomyolysis, eclampsia and preeclampsia, extreme endurance exercises, UGI bleeding, LVH, catecholamine toxicity