Abstract
Purpose
To systematically evaluate the impact of diet, exercise and lifestyle modification programmes on indices of obesity, Obstructive Sleep Apnoea (OSA) parameters and quality of life (QoL) in adults with OSA.
Methods
Electronic databases were searched to identify randomised controlled trials published in English with an intervention based on dietary weight loss, exercise and/or lifestyle programme in adults with OSA. Meta-analyses were conducted using random-effects models.
Results
Twelve studies met the inclusion criteria with nine comparing similar interventions. Diet and diet plus continuous positive airway pressure (CPAP) therapy were compared in three studies (n = 261), and intensive lifestyle programmes and routine care were compared in six studies (n = 483). Diet with CPAP therapy reduced weight by −2.64 kg (95 % Confidence Interval (CI) −3.98, −1.30, I 2 = 0 %) compared with diet alone. No differences were observed for QoL or Epworth Sleepiness Scale. A significant reduction in weight was seen in participants receiving an intensive lifestyle intervention of −5.65 kg (95 % CI −10.91, −0.40, I 2 = 95.7 %) compared with controls. Reductions were also observed for waist circumference (−5.80 cm, 95 % CI −8.64, −2.96, I2 = 77.7 %), body mass index (BMI) (−2.33 kg/m2, 95 % CI −3.41, −1.24, I2 = 78.8 %) and the Apnoea Hypopnoea Index (AHI) (−4.55 events/h, 95 % CI −7.12, −1.98, I 2 = 54.4 %) but with high levels of heterogeneity.
Conclusions
Intensive lifestyle management can significantly reduce obesity indices and improve AHI. Future research is required to investigate this effect due to a limited number of studies identified.
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Funding was provided by the Leicester Diabetes Centre and the Hanning Sleep Laboratory.
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The corresponding author and co-authors listed on this manuscript have no financial conflict of interest, and this research does not include off-label or investigational use of drugs or devices.
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Thomasouli, MA., Brady, E.M., Davies, M.J. et al. The impact of diet and lifestyle management strategies for obstructive sleep apnoea in adults: a systematic review and meta-analysis of randomised controlled trials. Sleep Breath 17, 925–935 (2013). https://doi.org/10.1007/s11325-013-0806-7
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DOI: https://doi.org/10.1007/s11325-013-0806-7