Napping, nighttime sleep, and cardiovascular risk factors in mid-life adults.
Napping, nighttime sleep, and cardiovascular risk factors in mid-life adults.
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DOI：
10.5664/jcsm.27873
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发表时间：
2010-08
期刊：
影响因子：
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通讯作者：
J. Owens;Daniel J Buysse;M. Hall;T. Kamarck;Laisze Lee;P. Strollo;S. Reis;K. Matthews
中科院分区：
文献类型：
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作者：
J. Owens;Daniel J Buysse;M. Hall;T. Kamarck;Laisze Lee;P. Strollo;S. Reis;K. Matthews
STUDY OBJECTIVES To evaluate the relations between sleep characteristics and cardiovascular risk factors and napping behavior, and to assess whether daytime napping leads to subsequent better or worse sleep. METHODS The sample consisted of 224 (African American, Caucasian, and Asian) middle-aged men and women. Sleep measures included nine nights of actigraphy and sleep diaries, sleep questionnaires, and one night of polysomnography to measure sleep disordered breathing. RESULTS More frequent napping was associated with shorter nighttime sleep duration averaged across the nine nights of actigraphy (especially among African Americans), more daytime sleepiness, more pain and fatigue by diary, and increased body mass index and waist circumference. Shorter nighttime sleep duration was associated with taking a nap during the next day and taking a nap was associated with less efficient sleep the next night. CONCLUSIONS Napping in middle-aged men and women is associated with overall less nighttime sleep in African Americans and lower sleep efficiency as measured by actigraphy, and increased BMI and central adiposity. These findings point to the importance of measuring of napping in understanding associations of sleep with cardiovascular risk.
