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A new test rig for static and dynamic evaluation of knee motion based on a cable-driven parallel manipulator loading system

  • Recent Progress and Novel Applications of Parallel Mechanisms
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Abstract

The evaluation of the knee joint behavior is fundamental in many applications, such as joint modeling, prosthesis and orthosis design. A new test rig for in vitro analysis of the knee joint behavior is presented in this paper. Based on a cable-driven parallel manipulator loading system, the rig can simulate general loading conditions, such as clinical tests and common daily activities, in a wide range of flexion angles. The joint natural response in terms of movement is measured by an optoelectronic system. Furthermore, the new rig allows the estimation of the contribution of the principal leg muscles in guaranteeing the equilibrium of the joint. Despite its simplicity and low cost, the rig presents good accuracy, repeatability and versatility that allow its application on a wide range of specimen sizes. It represents an advanced application of cable-driven parallel robots for in vitro motion analysis of the knee subjected to general loads.

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Acknowledgments

The authors wish to acknowledge the Health Sciences and Technologies Interdepartmental Centre for Industrial Research (HST-ICIR) for supporting this research, and thank Dr. Benedetta Baldisserri and Dr. Diego Zannoli for their contribution to the construction of the rig.

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Authors and Affiliations

  1. DIN-Department of Industrial Engineering, Health Sciences and Technologies Interdepartmental Centre for Industrial Research (HST-ICIR), University of Bologna, Bologna, Italy

    Margherita Forlani, Nicola Sancisi, Michele Conconi & Vincenzo Parenti-Castelli

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  1. Margherita Forlani
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  2. Nicola Sancisi
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  3. Michele Conconi
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  4. Vincenzo Parenti-Castelli
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Correspondence to Margherita Forlani.

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Forlani, M., Sancisi, N., Conconi, M. et al. A new test rig for static and dynamic evaluation of knee motion based on a cable-driven parallel manipulator loading system. Meccanica 51, 1571–1581 (2016). https://doi.org/10.1007/s11012-015-0124-1

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  • DOI: https://doi.org/10.1007/s11012-015-0124-1

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