Short sleep duration (⩽5–6 h/night) has been associated with an increased risk of weight gain (1,2) and non-communicable disease (3). Recently, through a systematic review and meta-analysis, we identified that short sleep duration may induce positive energy balance and have implications on weight gain over the long term (Al Khatib et al, unpublished data). Quality of sleep, opposed to its duration, has not been extensively reported in the context of the impact on disease risk. While self-reported measures of sleep quality have been linked to markers of adiposity and insulin resistance (4), there are no reports of objective measures of sleep quality in free-living conditions and cardio-metabolic disease risk. The Sleep-E Study is an on-going, cross-sectional study assessing associations between objective measures of sleep and cardio-metabolic risk factors in healthy adults, aged 18–55 years (N = 29; 12M/17 F). It is being conducted in accordance with the Declaration of Helsinki. Sleep parameters were assessed using the MotionWatch8 (CamNtech Ltd, Cambridge, UK) for six continuous nights, using sleep latency (time taken to transition from wakefulness to sleep) and sleep efficiency (actual sleep time expressed as a percentage of time in bed) as indicators of sleep quality. Fasting blood samples, blood pressure and anthropometric measurements were taken on study day 1. Correlations between sleep quality indicators and cardio-metabolic risk factors, adjusted for age, sex and BMI, were investigated.

Direct Link: https://doi.org/10.1017/S0029665115004498

Journal: Proceedings of the Nutrition Society. 2016;75(OCE1).

Keywords: diastolic blood pressure, Sleep, total cholesterol, triglycerides,

Applications: Sleep,

CamNtech Reference: M16001

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