A graphics-based software system to develop and analyze models of musculoskeletal structures

Delp, Scott L.<sup>1</sup>; Loan, J. Peter<sup>2</sup>

Affiliations

¹Departments of Biomedical Engineering and Physical Medicine & Rehabilitation, Northwestern University, and Sensory Motor Performance Program, Rehabilitation Institute of Chicago, Chicago, IL 60611, U.S.A.

²MusculoGraphics Inc, Northwestern University Research Park, Evanston, IL 60201, U.S.A.

Abstract and keywords

We have created a graphics-based software system that enables users to develop and analyze musculoskeletal models without programming. To define a model using this system one specifies the surfaces of the bones, the kinematics of the joints and the lines of action and forcegenerating parameters of the muscles. Once a model is defined, the function of each muscle can be analyzed by computing its length, moment arms, force and joint moments. The software has been implemented on a computer graphics workstation so that users can view the model from any perspective and graphically manipulate the joint kinematics and musculoskeletal geometry. Models can also be animated to visualize the results of motion analysis experiments. Since the software can be used to study models of many different musculoskeletal structures, it can enhance the productivity of investigators working on diverse problems in biomechanics.

Keywords: Biomechanics; Computer modeling; Computer graphics; Surgical simulation; Animation; Musculoskeletal; Muscle

Links

DOI: 10.1016/0010-4825(95)98882-E

PubMed: 7600758

WoS: A1995QV12500002

History

Received: 1994-04-6

Revised: 1994-10-27

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2007	Delp SL, Anderson FC, Arnold AS, Loan P, Habib A, John CT, Guendelman E, Thelen DG. OpenSim: open-source software to create and analyze dynamic simulations of movement. IEEE Trans Biomed Eng. November 2007;54(11):1940-1950.
2004	Buchanan TS, Lloyd DG, Manal K, Besier TF. Neuromusculoskeletal modeling: estimation of muscle forces and joint moments and movements from measurements of neural command. J Appl Biomech. November 2004;20(4):367-395.
2002	Murray WM, Buchanan TS, Delp SL. Scaling of peak moment arms of elbow muscles with upper extremity bone dimensions. J Biomech. January 2002;35(1):19-26.
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