Regular Exercise Improves Asthma Control but not Peak Expiratory Flow

Although regular exercise improves asthma control in adults as measured by the Asthma Control Test (ACT), it has little effect on peak expiratory flow (PEF) variability, according to a study published in Scientific Reports.

The Regular Exercise and Asthma Control Trial was a randomized, controlled trial designed to test the hypothesis that asthma control in adults would be improved by a 24-week exercise intervention. Adult participants with mild to moderate asthma were randomly assigned to a reference group (RG, n=82) or an exercise intervention group (iG, n=82). Participants in the iG group followed an individualized exercise program that included at least 30 minutes of aerobic exercise at least 3 times per week, along with stretching and strength training. Of the 105 participants who completed the trial, 89 (68%) provided sufficient information for analyses (n=44 iG and n=45 RG). The primary end point was asthma control, as measured by the ACT, asthma symptoms, and PEF variability.

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