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October 10, 1990

Some Unusual Hurdles En Route to Fitness

JAMA. 1990;264(14):1798-1801. doi:10.1001/jama.1990.03450140018007

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AS THE NATION pursues physical fitness, members of the American College of Sports Medicine are hearing about such things as allergy to exercise, gold standard failure, and too much of a potentially good thing. These cases of "conditioning come a cropper" were outlined at the organization's annual meeting in Salt Lake City, Utah.

In the first report, a 30-year-old woman, who had ridden an exercise bicycle regularly for several years, had a 2-week history of breaking out in a rash during exercise, and one episode of light-headedness.

She was seen at the Parkside Sports Medicine Center of Lutheran General Hospital, Park Ridge, Ill. William Briner, MD, associate director of the center, says the woman's physical examination and blood pressure were unremarkable. Briner arranged for her to pedal a bicycle ergometer, and after 6 minutes the rash appeared. Four minutes later, her blood pressure dropped to 100/50 mm Hg.

Briner's diagnosis