Median nerve travel and deformation in the transverse carpal tunnel increases with chuck grip force and deviated wrist position.

ABSTRACT:

Background

We assessed median nerve travel and deformation concurrently to better understand the influence of occupational risk factors on carpal tunnel dynamics, including forceful chuck gripping and deviated wrist positions.

Methods

Fourteen healthy right-hand dominant participants performed a chuck grip in 6 experimental conditions: two relative force levels (10% and 40% of maximum voluntary effort); three wrist positions (15° radial deviation, 0° neutral, 30° ulnar deviation). Chuck grip forces were measured with a load cell while the transverse cross-section of the carpal tunnel was imaged via ultrasound at the distal wrist crease. Images of the median nerve were analyzed in ImageJ to assess cross-sectional area, circularity, width, and height as well as travel in the a

SUBMITTER: Turcotte KE 

PROVIDER: S-EPMC7983861 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature