Asthma is a chronic lung disease characterized by inflammation and airway obstruction caused by environmental irritants and mucus production. Exercise can induce asthma attacks by narrowing airways. For individuals with asthma, an aerobic training program of 3-5 days per week at 40-60% of peak capacity for 20-40 minutes is recommended, along with lower body resistance training of 1 set of 8-15 reps 2-3 days per week. Using ratings of perceived exertion allows individuals to train effectively while inducing efficient fatigue and recovery based on their condition each day.