- Some children have asthma only when they exercise or play hard.
 - Most children with asthma are affected by exercise. This does not mean that your child should not take gym class or play sports.
 - Use of medicine 20 minutes before gym class or exercise may prevent asthma symptoms.
 - When asthma signs are present the child should have the chance to stop and rest.
 - Activities suggested for the child with asthma are: swimming, 
walking, bicycling and sports or games with stop and start running such 
as baseball, volleyball, football, tennis, golfing, and short distance 
track and field events.
 
Resources:
Your Child’s Asthma: Encouraging ExerciseThe Consortium on Children’s Asthma Camps