Ambulatory polysomnography: Technical aspects and normative values

W. Vaughn McCall, C. William Erwin, Jack D. Edinger, Andrew D. Krystal, Gail R. Marsh

Research output: Contribution to journalArticlepeer-review

26 Scopus citations


Ambulatory polysomnographic (APSG) assessment of sleep disorders is now possible, but the technique of APSG is sufficiently different from in-laboratory PSG that normative data from in-laboratory PSG may not apply to APSG. This paper reviews the technical aspects of APSG and presents normative APSG data from 20 older healthy males. Subjects underwent medical and psychiatric screening before completing APSG in their homes. Total sleep time and the rapid-eye-movement sleep latency (RL) were both shorter than those reported by others using traditional in-laboratory techniques. The shorter total sleep may be related to behaviors at home that impinge upon sleep. The shorter RL may be related to differences in calculation methods. Periodic limb movements were common in our subjects but did not contribute to sleep disturbance. We conclude that APSG is sufficiently different from traditional PSG as to warrant collection of a large normative data base.

Original languageEnglish (US)
Pages (from-to)68-77
Number of pages10
JournalJournal of Clinical Neurophysiology
Issue number1
StatePublished - Jan 1992
Externally publishedYes


  • Ambulatory
  • Normative
  • Periodic limb movements of sleep
  • Polysomnography
  • Shapiro-Wilk’s test
  • Sleep disorder

ASJC Scopus subject areas

  • Physiology
  • Neurology
  • Clinical Neurology
  • Physiology (medical)


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