Horng Y.-S.Hsieh S.-F.Lin M.-C.Chang Y.-W.Lee K.-C.HUEY-WEN LIANG2020-03-312020-03-3120140894-1130https://www.scopus.com/inward/record.uri?eid=2-s2.0-84908282665&doi=10.1016%2fj.jht.2014.07.007&partnerID=40&md5=6d460f8bb1e4689da12e303c71d82252https://scholars.lib.ntu.edu.tw/handle/123456789/482357Study design Case control study. Purpose of the study To evaluate the ultrasonographic median nerve changes under tendon gliding exercise in patients with carpal tunnel syndrome (CTS) and healthy controls. Methods Seventy-three patients with CTS and 53 healthy volunteers were consecutively recruited. Each subject underwent a physical examination, nerve conduction studies and ultrasonographic examinations of the median nerve during tendon gliding exercises. Results Significant changes in the cross-sectional area of the median nerve were found while moving from the straight position to the hook position and from the hook position to the fist position. There were also significant changes in the flattening ratio when moving from the hook position to the fist position. Conclusions Ultrasonography revealed that the median nerve was compressed in the fist position in both CTS patients and healthy volunteers. Thus, forceful grasping should be avoided during tendon gliding exercises performed in the fist position. Level of evidence 3b ? 2014 Hanley & Belfus.[SDGs]SDG3adult; Article; body posture; carpal tunnel syndrome; case control study; controlled study; cross sectional area; echography; exercise; female; flattening ratio; human; kinesiotherapy; major clinical study; male; median nerve; musculoskeletal system parameters; nerve conduction; pain intensity; physical examination; pinch strength; real time ultrasound scanner; tendon gliding exercise; visual analog scale; analysis of variance; carpal tunnel syndrome; chi square distribution; comparative study; convalescence; Doppler flowmetry; hand strength; joint characteristics and functions; kinesiotherapy; Median Neuropathy; middle aged; neurologic examination; physiology; procedures; prognosis; reference value; severity of illness index; tendon; treatment outcome; Adult; Analysis of Variance; Carpal Tunnel Syndrome; Case-Control Studies; Chi-Square Distribution; Exercise Therapy; Female; Hand Strength; Humans; Male; Median Neuropathy; Middle Aged; Neurologic Examination; Physical Examination; Prognosis; Range of Motion, Articular; Recovery of Function; Reference Values; Severity of Illness Index; Tendons; Treatment Outcome; Ultrasonography, Dopplerjournal article10.1016/j.jht.2014.07.007252406822-s2.0-84908282665