, exercise-induced bronchospasm (eks'ĕr-sīz-in-dūst' az'mă, brong'kō-spazm) Bronchial spasm, edema, and mucus secretion brought about by exercise, particularly in cool, dry environment. Recovery usually occurs spontaneously within 90 minutes. A 10-15% reduction in preexercise values for FEV1/FVC confirms diagnosis. See also: asthma