[Thickness of A1 Pulley Measured by High-frequency Ultrasound and Its Influence Factors in Healthy Volunteers].

Objective: To investigate A1 pulley thickness of flexor tendon in healthy volunteers and to analyze its influence factors.

Methods: The study included 90 healthy volunteers and the A1 pulley thickness at bilateral fingers was measured using high frequency ultrasound. The following parameters were recorded for each participant: age, gender, weight, height, body mass index (BMI).