ArticleSleep and biological rhythms2026
The Effects of a Six-week Exercise Program on Heart Rate Variability in Adults with and Without Obstructive Sleep Apnea.
Article in Sleep and biological rhythms, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Purpose: Exercise training improves heart rate variability (HRV) and is recommended as a behavioral treatment option for obese adults suffering from obstructive sleep apnea (OSA). We examined whether the effects of a supervised exercise program on HRV parameters differed according to OSA severity in obese adults. Methods: Obese (BMI> 33 kg*m Results: Twenty-seven adults (Age: 49 ± 9 years; W:14; M:13) with no/mild OSA and 29 adults (Age: 52 ± 9 years; W:15; M:14) with moderate/severe OSA completed all aspects of the trial. No significant differences in age, cardiorespiratory fitness, or HRV parameters were observed between groups at baseline. Across the sample, exercise training improved fitness (Pre: 30.5±6.4 vs. Post: 32.4±6.6 ml/kg/min, p<0.001), VLF% (p=0.015, η Conclusion: These data suggest that while six weeks of exercise led to parasympathetic improvement across the sample, it was insufficient to improve sympathetic HRV signal among overweight adults with moderate to severe OSA.
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