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Sleep Disruption After Brain Injury Is Associated With Worse Motor Outcomes and Slower Functional Recovery.

Melanie K Fleming1,2,3, Tom Smejka1,2, David Henderson Slater1,2

  • 1University of Oxford, Oxford, UK.

Neurorehabilitation and Neural Repair
|June 9, 2020
PubMed
Summary

Patients with brain injury experience poorer sleep quality and more fragmented sleep, which is linked to slower motor recovery during inpatient rehabilitation. Improving sleep may enhance rehabilitation outcomes.

Keywords:
brain injuryfunctional independencemotorrecoverysleepstroke

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Area of Science:

  • Neuroscience
  • Rehabilitation Medicine
  • Sleep Science

Background:

  • Sleep is crucial for motor learning consolidation.
  • Brain injury can disrupt sleep continuity, potentially impacting rehabilitation.
  • Understanding the sleep-motor recovery link is vital for optimizing patient outcomes.

Purpose of the Study:

  • To investigate the association between sleep quality and motor recovery in patients with brain injury undergoing inpatient rehabilitation.
  • To determine if sleep fragmentation predicts motor outcomes and functional gains.

Main Methods:

  • Fifty-nine inpatient brain injury patients and 55 healthy controls were studied.
  • Objective sleep quality was measured via actigraphy (7 nights).
  • Subjective sleep quality, motor function (Action Research Arm test, Fugl-Meyer Assessment, Rivermead Mobility Index), and functional independence (Functional Independence Measure - FIM) were assessed.

Main Results:

  • Inpatients exhibited significantly poorer self-reported sleep quality and increased sleep fragmentation compared to controls.
  • Sleep fragmentation was a significant predictor of poorer motor outcomes, independent of initial functional status.
  • Sleep fragmentation uniquely explained variance in the rate of FIM change, indicating slower recovery with more disrupted sleep.

Conclusions:

  • Brain injury patients in rehabilitation settings show impaired sleep quality.
  • Disrupted sleep is associated with diminished motor recovery and slower functional gains.
  • Further research is warranted to explore interventions for improving sleep quality and its impact on rehabilitation outcomes.