title: Common interlimb asymmetries and neurogenic responses during upper limb neurodynamic testing: implications for test interpretation.
abstract: METHODS
  Clinical measurement pilot study.
  
  
  BACKGROUND
  Upper limb neurodynamic testing (ULNT1) uses interlimb comparisons to investigate nerve sensitivity to movement.
  
  
  OBJECTIVE
  To establish the magnitude of range of motion asymmetries between limbs and the frequency of neurogenic sensory responses during ULNT1.
  
  
  METHODS
  Elbow extension range of motion (EE-ROM) and sensory responses were measured during ULNT1 in dominant and nondominant limbs for 40 asymptomatic participants. Structural differentiation was performed to examine if sensory responses were associated with neurogenic sources.
  
  
  RESULTS
  The average intraindividual EE-ROM asymmetry was 7.28 deg (6.68 standard deviation) (95% confidence interval: 5.18, 9.28). Sensory responses in the limbs during ULNT1 were altered by structural differentiation in 95% of participants. An intraindividual, interlimb difference of ≥10 deg exceeds the range of common asymmetry during ULNT1.
  
  
  CONCLUSIONS
  Neurogenic sensory responses are common findings in healthy individuals and should be acknowledged when interpreting ULNT1 findings.
  
  
  METHODS
  3a.
authors.affiliation: Department of Physical Therapy, Samuel Merritt University, Oakland, California, USA. bboyd1@samuelmerritt.edu
authors.forename: Benjamin S
authors.initials: BS
authors.lastname: Boyd
mesh_terms: D000328:Adult; D000704:Analysis of Variance; D053587:Arthrometry, Articular; D003430:Cross-Sectional Studies; D004551:Elbow Joint / Q000502:physiology*; D005260:Female; D007839:Functional Laterality / Q000502:physiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D009460:Neurologic Examination / Q000379:methods*; D010865:Pilot Projects; D016059:Range of Motion, Articular / Q000502:physiology*; D034941:Upper Extremity / Q000294:innervation* / Q000502:physiology; D055815:Young Adult