Anatomical protocol for gait analysis: joint kinematics measurement and its repeatability

Abstract

International Society of Biomechanics has proposed a general reporting standard for joint kinematics based on anatomical reference frames. Nevertheless, the gait analysis protocols based on this standard are still poorly reported. The purpose of the current study is to propose and preliminarily assess the potential of an anatomically based ISB 6-DOF protocol, which combines the ISB reporting standard together with a marker cluster technique. The proposed technical marker set enables full description of the lower limb kinematics (including three-dimensional ankle-foot complex rotations) according to the current biomechanical recommendation. The marker set provides a clinically acceptable inter-trial repeatability and minimal equipment requirements.

Reliability of 3D measurement of pelvic and lower limb kinematics during two single leg landing tasks

“…The landing phase was defined as the time from initial ground contact based on markers placed on the shoe to 100 ms after the initial contact [20][21][22]36]. The local coordinate system for pelvis, thigh, shank and foot was created in accordance with International Society of Biomechanics recommendations [41,42]. Marker trajectories were filtered through a low-pass Butterworth filter at a cutoff frequency of 12 Hz [10,11].…”