腕部和拇指在腕管综合征患者持续智能手机打字过程中的运动学：一项横断面比较研究

Objectives: Carpal tunnel syndrome (CTS) is associated with impaired hand sensorimotor function, but wrist and thumb kinematics during sustained smartphone use remain unclear. This study compared joint posture, angular velocity, and time-related kinematic changes during a 30-min smartphone typing task between patients with CTS and healthy controls. Methods: Thirteen patients with CTS and 14 healthy controls completed a standardized 30-min two-handed smartphone typing task. Three-dimensional wrist and thumb kinematics were recorded, and mean joint angles and root mean square (RMS) angular veloc