People with sleep apnea often rely on a facial-mask device that keeps their airways open while they sleep.
The studies lasted from two to six months. Among people who exercised, sleep apnea symptoms improved. It became less severe, according to a standardized scale based on the frequency of their breathing interruptions, and the participants reported better sleep overall and less daytime drowsiness. Improvements were similar regardless of the type of exercise people did and were determined to be independent of any weight loss.
Who may be affected
People with obstructive sleep apnea. With this condition, airways collapse during sleep, which causes breathing to stop briefly and restart as many as 30 times an hour, all night long. An estimated 18 million Americans, more men than women, have the sleep disorder, which can cause severe daytime drowsiness, difficulty in concentrating and irritability.
Caveats
Data on sleep quality came from the participants’ responses on questionnaires. The study did not determine the type, duration and frequency of exercise that might be most helpful for people with sleep apnea.
Find this study
Online in Respiratory Medicine (resmedjournal.com; type "effect of exercise" into the search box).
Learn more
Information on sleep apnea can be found at nhlbi.nih.gov/health and mayoclinic.org.
The research described in Quick Study comes from credible, peer-reviewed journals.