HumanTrak Metrics: Shoulder Flexion

Description: Angle between the Lower Trunk and Upper Arm segments Sagittal plane projection Lower Trunk segment = SpineMid to SpineBase markers Upper Arm segment = Shoulder to Elbow markers Vertical (Upper Arm straight down) is 0° Flexion = positive Example Usage: Understand shoulder range of motion during the Shoulder Flexion/Extension Protocol Understand shoulder movement during the Overhead Squat Protocol