Shawntinice Polk died as a result of deep vein thrombosis, a condition resulting from the formation of a blood clot (thrombus) inside a deep vein, commonly located in the calf or thigh. One of the clots traveled to her lungs and caused a sudden cardiac death, according to the county medical examiner.

DVT is a subtle and difficult to detect condition that kills approximately 200,000 people in the United States each year.

Polkey arrived at the gym yesterday morning and complained of feeling ill. At the time she collapsed, she had not yet begun to work out.

Today the UA community mourns. As assistant men's hoops coach Jim Rosborough said, Shawntinice was one of the most beloved athletes in Tucson. "Polkey loved children and had the biggest heart of anyone I knew," said Courtney Peters, team manager.

A public memorial service will be held tomorrow night at the McKale Center.