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Effects of exercise and weight loss in older adults with obstructive sleep apnea

TitleEffects of exercise and weight loss in older adults with obstructive sleep apnea
Publication TypeJournal Article
Year of Publication2015
AuthorsDobrosielski, DA, Patil, S, Schwartz, AR, Bandeen-Roche, K, Stewart, KJ
JournalMed Sci Sports Exerc
Volume47
Pagination20-6
Date PublishedJan
ISBN Number0195-9131
Accession Number24870569
Abstract

PURPOSE: Obstructive sleep apnea (OSA) is prevalent among older individuals and is linked to increased cardiovascular disease morbidity. This study examined the change in OSA severity after exercise training and dietary-induced weight loss in older adults and the association of the changes in OSA severity, body composition, and aerobic capacity with arterial distensibility. METHODS: Obese adults (n = 25) with OSA, age 60 yr or older, were instructed to participate in supervised exercise (3 d.wk) and follow a calorie-restricted diet. Baseline assessments of OSA parameters, body weight and composition, aerobic capacity, and arterial distensibility were repeated at 12 wk. RESULTS: Nineteen participants completed the intervention. At 12 wk, there were reductions in body weight (-9%) and percentage of total body fat (-5%) and trunk fat (-8%) whereas aerobic capacity improved by 20% (all P < 0.01). The apnea-hypopnea index decreased by 10 events per hour (P < 0.01) and nocturnal SaO2 (mean SaO2) improved from 94.9% at baseline to 95.2% after intervention (P = 0.01). Arterial distensibility for the group was not different from that at baseline (P = 0.99), yet individual changes in distensibility were associated with the change in nocturnal desaturations (r = -0.49, P = 0.03) but not with the change in body weight, apnea-hypopnea index, or aerobic capacity. CONCLUSIONS: The severity of OSA was reduced after an exercise and weight loss program among older adults, suggesting that this lifestyle approach may be an effective first-line nonsurgical and nonpharmacological treatment for older patients with OSA.

PMCID

Pmc4246024