This randomized controlled trial investigated the effects of adding inspiratory muscle training (IMT) to a structured swimming program on pulmonary function, respiratory muscle strength, ventilatory capacity, perceived exertion, and asthma control in children with mild persistent asthma. Thirty children aged 8-11 years were randomly assigned to either a swimming plus IMT group or a swimming-only group. Both groups participated in a supervised 4-week swimming program, while the experimental group additionally performed IMT twice daily. Pulmonary function tests, respiratory muscle strength, and Childhood Asthma Control Test (C-ACT) scores were assessed before and after the intervention.
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Maximal Inspiratory Pressure (MIP)
Timeframe: 4 weeks
Forced Expiratory Volume in 1 Second (FEV₁)
Timeframe: 4 weeks
Childhood Asthma Control Test (C-ACT) Score
Timeframe: 4 weeks