Three-dimensional joint measurement (Model SE-4010) Most joints in the human body are composed of two or three axes of rotation. Conventional joint angle measurement tools, such as the clinically used joint angle measuring tape, usually only measure the angle of one axis of rotation (mainly flexion/extension) of a joint, and are difficult or impossible to use for measuring the internal/external rotation of a joint. Such measurement results are far from sufficient for a comprehensive evaluation of a joint’s mobility. The 3D joint mobility measurement device uses a high-precision sensor to accurately measure the 3D angles and joint mobility (ROM) of each joint in the human body. It can measure not only joint flexion/extension, but also joint internal/external rotation and joint mobility. For the same joint two or three axes of the joint angle data at the same time to obtain measurement, the system software can real-time display angle changes. Three-dimensional joint mobility measurement device is composed of a six-dimensional sensor, seat, and system software, which can provide the measurement data of the three-dimensional joint mobility of each human limb, and is an excellent tool for human movement function measurement and evaluation. 1. Measuring parts: (1) Left/right wrist joints: dorsiflexion/extension, left rotation/right rotation (2) Left/right elbow joints: flexion/extension, internal rotation/external rotation (3) Left/right shoulder joints: lateral lift/internal retraction, forward lift/rear extension, internal rotation/external rotation (4) Neck joints: left head turn/right head turn, head lift/low head, left head/right head (5) Spine: left side bend/right side bend, left turn/right turn left/right ( 6) Hip: flexion/extension, internal rotation/external rotation, abduction/inversion left/right (7) Knee: flexion/extension, internal rotation/external rotation left/right (8) Ankle: dorsiflexion/decline, inversion/external rotation. 2.Maximum angle of joint measurement: 360° 3.Real-time joint angle display: XYZ three-coordinate real-time curve, XYZ three-directional angle real-time value, XYZ three-directional maximum angle, XYZ three-directional minimum angle. 4.Database way report: Detailed description 360 degree three-dimensional orientation accurate output of fast dynamic response, long-term stability (no drift) three-dimensional acceleration, three-dimensional angular velocity and three-dimensional geomagnetic field data.