title: Analysis of Trunk Rolling Performances by Mattress Mobility Detection System in Poststroke Patients: A Pilot Study.
abstract: OBJECTIVE
  The purpose of this study was to investigate the correlation of kinematic variables with quality of trunk control in poststroke patients.
  
  
  METHODS
  This cross-sectional study included stroke subjects with mild to moderate motor deficit corresponding to Brunnstrom stages 3-4. Trunk functional performance was measured using bed mobility monitor system. All tasks were repeated ten times for both directions in each subject. Outcome measurements included the movement time and displacement of center of pressure (CoP) from supine to side lying and returning.
  
  
  RESULTS
  The results revealed that a significant longer turning time was observed when turning from the paretic side toward the nonparetic side compared to the other direction, with an estimated mean difference of 0.427 sec (P = 0.005). We found a significant difference in the time of rolling back to supine position between two directions. The displacement of CoP in rolling back from side lying on the nonparetic side was smaller than that from the paretic side with an estimated mean difference of -0.797 cm (P = 0.023).
  
  
  CONCLUSIONS
  The impaired trunk mobility was associated with increased movement time and decreased displacement of CoP in poststroke patients. Trunk rolling performance has potential in assessment of stroke patients.
authors.affiliation: Department of Physical Medicine and Rehabilitation, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan; Department of Physical Therapy and Assistive Technology, National Yang-Ming University, Taipei 114, Taiwan.
authors.forename: Shang-Lin
authors.initials: SL
authors.lastname: Chiang
authors.affiliation: Department of Nursing, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan.
authors.forename: Chia-Huei
authors.initials: CH
authors.lastname: Lin
authors.affiliation: School of Gerontology Health Management and Master Program in Long-Term Care, College of Nursing, Taipei Medical University, Taipei, Taiwan.
authors.forename: Chueh-Ho
authors.initials: CH
authors.lastname: Lin
authors.affiliation: Department of Physical Therapy and Assistive Technology, National Yang-Ming University, Taipei 114, Taiwan.
authors.forename: Liang-Hsuan
authors.initials: LH
authors.lastname: Lu
authors.affiliation: School of Medicine, National Defense Medical Center, Taipei, Taiwan; Department of Physical Medicine and Rehabilitation, Taichung Veterans General Hospital, Taichung, Taiwan.
authors.forename: Shin-Tsu
authors.initials: ST
authors.lastname: Chang
authors.affiliation: Department of Physical Therapy and Assistive Technology, National Yang-Ming University, Taipei 114, Taiwan.
authors.forename: Wen-Hsu
authors.initials: WH
authors.lastname: Sung
authors.affiliation: Department of Physical Therapy and Assistive Technology, National Yang-Ming University, Taipei 114, Taiwan.
authors.forename: Shun-Hwa
authors.initials: SH
authors.lastname: Wei
mesh_terms: D000368:Aged; D001513:Beds; D001696:Biomechanical Phenomena; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000295:instrumentation* / Q000379:methods; D008297:Male; D008875:Middle Aged; D009068:Movement / Q000502:physiology; D010291:Paresis / Q000503:physiopathology; D020521:Stroke / Q000503:physiopathology* / Q000628:therapy; D000071939:Stroke Rehabilitation / Q000295:instrumentation* / Q000379:methods