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BACKGROUND: The underlying pathophysiology of varying physical activity levels in patients with asthma remains unclear. In this study, we investigated the association between physical activity and air trapping, identified via chest computed tomography, in patients with asthma. METHODS: ) and low-attenuation areas. Mucus plug scores were also measured. RESULTS: . CONCLUSIONS: The uneven distribution of air trapping in the lungs of patients with asthma, particularly in the upper lobe, was linked to reduced moderate-to-vigorous-intensity physical activity and was partially attributable to small airway obstruction caused by mucus plugs.
Fukatsu-Chikumoto et al. (Tue,) studied this question.