The cover story · 2026 Dec
Two active programs showed similar asthma-control improvements
Physically inactive adults with moderate-to-severe uncontrolled asthma were randomized to treadmill training or a behavioral program to increase daily activity. Both groups showed clinically meaningful improvements in asthma control and quality of life, maintained at four-month follow-up. Because two active programs were compared, these changes do not establish benefit over receiving no program. Because the trial compared only two active programs, improvement in both does not establish benefit over no program; similar results also do not prove the programs equivalent. The cohort was physically inactive and was predominantly women with several reported health characteristics, so the same results are not established for everyone with asthma. With 27 and 25 participants in the groups, these estimates remain uncertain and need confirmation in larger studies. The last reported assessment was after four-month follow-up, so outcomes beyond that point are not established.
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