title: Physiological factors influencing median nerve mobility in normal subjects.
abstract: The purpose of this study was to assess the mobility of the median nerve in the axial plane in normal healthy subjects and to evaluate physiological factors associated with lesser degrees of mobility.
  
  
  
  Our study included 80 healthy volunteers between 20 and 60 years of age. For all subjects, mobility of the median nerve was assessed with ultrasound at the carpal tunnel.
  
  
  
  With wrist and finger flexion, the median nerve moved in all 160 wrists; in 78, the nerve dove deep to the flexor tendons (full), and in 82 it made a partial turn, but did drop below the tendons (partial). Among all demographic factors and sonographic measurements, only height was significantly related to partial mobility.
  
  
  
  Full or partial mobility of the median nerve with wrist flexion is an attribute of normal subjects; partial mobility is common, particularly in taller individuals. Muscle Nerve 54: 883-886, 2016.
authors.affiliation: Department of Neurology, School of Medicine, Catholic University of Daegu, 33, Duryugongwon-ro 17-gil, Nam-gu, Daegu, 705-030, Republic of Korea. jihelpgod@cu.ac.kr.
authors.forename: Jung Im
authors.initials: JI
authors.lastname: Seok
authors.affiliation: Department of Neurology, School of Medicine, Catholic University of Daegu, 33, Duryugongwon-ro 17-gil, Nam-gu, Daegu, 705-030, Republic of Korea.
authors.forename: Dong Kuck
authors.initials: DK
authors.lastname: Lee
mesh_terms: D000328:Adult; D005260:Female; D005385:Fingers / Q000502:physiology; D064368:Healthy Volunteers; D006801:Humans; D008297:Male; D008475:Median Nerve / Q000000981:diagnostic imaging / Q000502:physiology*; D008875:Middle Aged; D016059:Range of Motion, Articular / Q000502:physiology*; D013710:Tendons / Q000502:physiology*; D014463:Ultrasonography; D014953:Wrist / Q000294:innervation; D055815:Young Adult
keywords: carpal tunnel; healthy volunteers; height; median nerve; motion; ultrasonography