A new kinematic model of pro- and supination of the human forearm

Kinematics and Dynamics of Wearable Robots

“…Physiologists, e.g. Yasutomi et al (2002), generally agree that this movement is achieved mainly by the rotation of the radius around the ulna; however, some authors also refer to an elusive movement of the ulna itself (Weinberg et al, 2000). Whatever description is adopted, control of the pronation-supination movement implies the fixation of a reference point (static point) and the fixation of another point in the segment of the limb i.e.…”

A new kinematic model of the upper extremity based on functional joint parameter determination for shoulder and elbow

“…However, post hoc tests monitoring the correlation between the WJC position (by varying it along the direction between the two styloid markers) and the stability of the humerus TF in dynamic pro-/supination trials led to a similar result. This WJC position might be corroborated or modified by further research on functional forearm anatomy such as by Weinberg et al [32]. However, for marker oriented motion analysis the anatomical problem to define the location of the WJC remains entangled with STA (as reported in [7]) of the markers defining it.…”

Estimation of kinematics parameters dependent on pronation supination for modeling forearm skeletal system based on CT images

“…In concrete terms, when pro-/supination angle ϕ and the axial displacement of ulna s are given as input, it is possible to calculate all the joint angle of the model. Moreover, on 3-dimensional space, ulna is abducted in the pro-/supination, the motion is achieved by the lateral swaying angle of ulna ϑ added to the proximal ulna in [6]. But it is necessary to decide about input values of the 2-DOF, which is included redundant DOF in the model.…”