Concordance of actigraphy with polysomnography in traumatic brain injury neurorehabilitation admissions

Joel E. Kamper, Jeffrey Garofano, Daniel J. Schwartz, Marc A. Silva, Jamie Zeitzer, Mo Modarres, Scott D. Barnett, Risa Nakase-Richardson

Research output: Contribution to journalArticlepeer-review

24 Scopus citations


Objective: To examine concordance of accelerometer-based actigraphy (ACG) with polysomnography (PSG) in the determination of sleep states in inpatients with traumatic brain injury (TBI), and examine the impact of injury severity and comorbid conditions (spasticity, apnea) on concordance. Participants: This was a convenience sample of 50 participants with primarily severe TBI. Design: This was a retrospective chart review of concurrent administration of PSG with ACG in nonconsecutive rehabilitation admissions with TBI. Main Measures: Total sleep time and sleep efficiency were measured by PSG and ACG. Results: Moderate to strong correlations between ACG and PSG were observed for total sleep time (r = 0.78, P <.01) and sleep efficiency (r = 0.66, P <.01). PSG and ACG estimates of total sleep time (316 minutes vs 325 minutes, respectively) and sleep efficiency (78% vs 77%, respectively) were statistically indistinguishable. Conclusions: Actigraphy is a valid proxy for monitoring of sleep in this population across injury severity and common comorbidity groups.However, further research with larger sample sizes to examine concordance in patients with TBI with disorder of consciousness and spasticity is recommended.

Original languageEnglish (US)
Pages (from-to)117-125
Number of pages9
JournalJournal of Head Trauma Rehabilitation
Issue number2
StatePublished - Mar 4 2016
Externally publishedYes


  • Actigraphy
  • Head injury
  • Polysomnography
  • Rehabilitation
  • Sleep
  • Traumatic brain injury

ASJC Scopus subject areas

  • Physical Therapy, Sports Therapy and Rehabilitation
  • Rehabilitation
  • Clinical Neurology


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