Comparative Biomechanical Analysis of Current Microprocessor-Controlled Prosthetic Knee Joints Malte Bellmann, Dipl-Ing, Thomas Schmalz, PhD, Siegmar.

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Comparative Biomechanical Analysis of Current Microprocessor-Controlled Prosthetic Knee Joints Malte Bellmann, Dipl-Ing, Thomas Schmalz, PhD, Siegmar Blumentritt, PhD Archives of Physical Medicine and Rehabilitation Volume 91, Issue 4, Pages 644-652 (April 2010) DOI: 10.1016/j.apmr.2009.12.014 Copyright © 2010 American Congress of Rehabilitation Medicine Terms and Conditions

Fig 1 Group mean of maximum knee angles on the prosthetic side during swing phase at 3 different walking velocities during level walking (A) and knee angle velocity in late swing phase at self-selected walking velocity (B). Abbreviation: v, velocity (m/s). Archives of Physical Medicine and Rehabilitation 2010 91, 644-652DOI: (10.1016/j.apmr.2009.12.014) Copyright © 2010 American Congress of Rehabilitation Medicine Terms and Conditions

Fig 2 Group mean of external sagittal hip moment on the prosthetic side during level walking at self-selected walking velocity (ranging between 1.32 and 1.39m/s). Abbreviations: gc, gait cycle; t, time. Archives of Physical Medicine and Rehabilitation 2010 91, 644-652DOI: (10.1016/j.apmr.2009.12.014) Copyright © 2010 American Congress of Rehabilitation Medicine Terms and Conditions

Fig 3 Contralateral vertical ground reaction forces (A) and group mean of external sagittal knee moment on the prosthetic side (B) during stair descent (both group means). Abbreviations: gc, gait cycle; t, time. Archives of Physical Medicine and Rehabilitation 2010 91, 644-652DOI: (10.1016/j.apmr.2009.12.014) Copyright © 2010 American Congress of Rehabilitation Medicine Terms and Conditions

Fig 4 Contralateral vertical ground reaction forces (A) and external sagittal knee moment on the prosthetic side (B) when descending a 10° ramp (both group means). Archives of Physical Medicine and Rehabilitation 2010 91, 644-652DOI: (10.1016/j.apmr.2009.12.014) Copyright © 2010 American Congress of Rehabilitation Medicine Terms and Conditions

Fig 5 Knee angle velocity on the prosthetic side beginning with terminal stance phase (A) and thigh segment movement (B) during stair descent (both group means). Abbreviations: gc, gait cycle; t, time. Archives of Physical Medicine and Rehabilitation 2010 91, 644-652DOI: (10.1016/j.apmr.2009.12.014) Copyright © 2010 American Congress of Rehabilitation Medicine Terms and Conditions