Thumb Positioning Modulates Median Nerve Mobility and Morphology During Postural Changes in Carpal Tunnel Syndrome: Implications for Nerve Gliding Exercises
學年 115
學期 1
出版（發表）日期 2026-09-01
作品名稱 Thumb Positioning Modulates Median Nerve Mobility and Morphology During Postural Changes in Carpal Tunnel Syndrome: Implications for Nerve Gliding Exercises
作品名稱（其他語言）
著者 Yi-Wei Chang, Chii-Jen Chen, You-Wei Wang, Valeria Chiu, Yi-Shiung Horng
單位
出版者
著錄名稱、卷期、頁數 Archives of Rehabilitation Research and Clinical Translation 8(3), pp.1-9 (100660)
摘要 Objective To investigate the modulation of median nerve (MN) mobility and morphology by thumb positioning during postural changes in patients with carpal tunnel syndrome (CTS), with implications for nerve gliding exercises. Design Cross-sectional case–control study. Setting Outpatient physical medicine and rehabilitation department at a community hospital. Participants Patients aged 18 to 65 years with symptoms of CTS, confirmed using nerve conduction studies, were consecutively enrolled. Those with a history of wrist trauma or surgery were excluded. Interventions Not applicable. Main Outcome Measures MN and flexor digitorum superficialis (FDS) tendon excursion and cross-sectional area (CSA) of the MN in wrist neutral/extended and thumb-resting/abducted positions. Results A total of 79 CTS hands and 88 healthy hands were enrolled. The CTS group had a significantly larger MN CSA (p<.0001), with MN CSA decreasing when the thumb moved from rest to abduction in both wrist-neutral and wrist-extended positions (p=.0170 and p=.0007, respectively). The CTS group also had a significantly lower MN excursion (p<.05), with MN excursion increasing as the wrist extended (p=.0454) but slightly decreasing as the wrist extended with thumb abducted. No between-group difference in FDS tendon excursion was observed for the wrist-neutral position (p=.1126); for the wrist-extended with thumb-at-rest position, the CTS group exhibited slightly greater FDS tendon excursion (p=.0476). Both groups exhibited larger FDS excursion during wrist extension and when the thumb moved from rest to abduction (p=.0026 in CTS group and p=.0060 in control group), indicating posture-related tendon mobility. Conclusions MN mobility and morphology are affected by thumb positioning in CTS. It is recommended to avoid overstretching the thumb in the final step of nerve gliding exercises.
關鍵字 Carpal tunnel syndrome; Doppler; Median nerve; Rehabilitation; Ultrasonography
語言 en_US
ISSN 2590-1095
期刊性質 國外
收錄於 SCI
產學合作
通訊作者
審稿制度 是
國別 USA
公開徵稿
出版型式 ,電子版