title: Locomotion and nightwaking.
abstract: OBJECTIVE
  In this study we addressed the association between two major achievements of infancy: independent locomotion and 'sleeping through the night'.
  
  
  METHODS
  Mothers of 107 healthy infants aged between five and eight months completed a sleep questionnaire and a motor checklist.
  
  
  CONCLUSIONS
  Infants who were already crawling had more bedtime difficulties and nightwaking than did pre-crawlers. Among 7- and 8-month-old infants, locomotion predicted 17% of nightwaking variance, after controlling for age and gender. In discussing the developmental implications of locomotion we suggest that crawling may not only 'broaden the mind' but also 'cost' sleep. More studies, across time, on how motor development and sleep-wake regulation interrelate are recommended.
authors.affiliation: Department of Education, Faculty of Education, University of Haifa, Mount Carmel, Haifa, Israel. anats@construct.haifa.ac.il
authors.forename: A
authors.initials: A
authors.lastname: Scher
authors.forename: D
authors.initials: D
authors.lastname: Cohen
mesh_terms: D000367:Age Factors; D002657:Child Development; D005260:Female; D006801:Humans; D007223:Infant; D018730:Infant Behavior / Q000502:physiology; D008124:Locomotion / Q000502:physiology*; D008297:Male; D009035:Mothers; D009043:Motor Activity / Q000502:physiology; D016487:Parenting; D012890:Sleep / Q000502:physiology; D007319:Sleep Initiation and Maintenance Disorders / Q000503:physiopathology*; D011795:Surveys and Questionnaires