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All example files are included in the directory "Models\Leg6Dof9Musc" included with the OpenSim installation.

Model

Include Page
OpenSim:_Leg69
OpenSim:_Leg69

A. Explore the model and the Forward Dynamics Tool

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Read the following set of pages on How Forward Dynamics Works.

Open the Forward Dynamics Tool by selecting “Forward Dynamics...” from the Tools menu. Configure the tool as follows:

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titleClick here to show questions for Part I - A…

Include Page
OpenSim:_Questions_LegMuscleForceEstimation_I_A
OpenSim:_Questions_LegMuscleForceEstimation_I_A

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Use the Excitation Editor to generate a set of muscle excitations that track the IK solution.

Read the page on how to use the Excitation Editor to learn how to select and change points on a muscle excitation curve.

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Expand
titleClick here to show questions for Part I - B…

Include Page
OpenSim:_Questions_LegMuscleForceEstimation_I_B
OpenSim:_Questions_LegMuscleForceEstimation_I_B

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Read the following set of pages on How Static Optimization Works.

Open the Static Optimization Tool and configure it as follows:

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Expand
titleClick here to show questions for Part I - C…

Include Page
OpenSim:_Questions_LegMuscleForceEstimation_I_C
OpenSim:_Questions_LegMuscleForceEstimation_I_C

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Read the following set of pages on How Computed Muscle Control Works.

Open the CMC Tool and configure it as follows:

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Expand
titleClick here to show questions for Part I - D…

Include Page
OpenSim:_Questions_LegMuscleForceEstimation_I_D
OpenSim:_Questions_LegMuscleForceEstimation_I_D

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Next: Part II: Leg Muscle Force Estimation in Stance

Home: The Strength of Simulation: Estimating Leg Muscle Forces in Stance and Swing