title: Sleep Disorders, Physical Activity, and Sedentary Behavior Among U.S. Adults: National Health and Nutrition Examination Survey.
abstract: BACKGROUND
  Disruptive sleeping patterns have been linked to serious medical conditions. Regular physical activity (PA) has a positive impact on health; however, few research have investigated the relationships between PA, body mass index (BMI), sedentary behaviors (SB), and sleep disorders (SD).
  
  
  METHODS
  Data from the 2005-2006 NHANES were analyzed for this study. Participants (N = 2989; mean age = 50.44 years) were grouped based upon responses to SD questions. Accelerometers were used to measure the average time spent in moderate or vigorous physical activity (MVPA) and SB. Multinomial logistic regression analyses were used to examine the associations between PA, SB, and SD after controlling for covariates and to explore potential moderation effects among common risk factors and the main study variables.
  
  
  RESULTS
  Among middle-aged adults, PA was significantly associated with SD [Wald χ2 (8) = 22.21; P < .001]. Furthermore, among adults in the highest tertile of SB, PA was significantly associated with SD [Wald χ2 (8) = 32.29; P < .001].
  
  
  CONCLUSIONS
  These results indicate that middle-aged adults who are less active may have increased likelihoods of SD. It is important for health care professionals to continue developing methods for increasing PA to decrease the risk of SD.
authors.affiliation: Dept of Health and Human Performance, Middle Tennessee State University, Murfreesboro, TN.
authors.forename: James L
authors.initials: JL
authors.lastname: Farnsworth
authors.forename: Youngdeok
authors.initials: Y
authors.lastname: Kim
authors.forename: Minsoo
authors.initials: M
authors.lastname: Kang
mesh_terms: D000328:Adult; D015992:Body Mass Index; D015444:Exercise / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009749:Nutrition Surveys; D012307:Risk Factors; D057185:Sedentary Behavior; D012893:Sleep Wake Disorders / Q000503:physiopathology*; D011795:Surveys and Questionnaires; D014481:United States