Simulated muscle fiber lengths and velocities during walking and running
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This page contains simulation results for the five subjects included in this publication. The subject numbers are noncontiguous to maintain alignment with it's sister project: https://simtk.org/projects/nmbl_running/ . These models are a little complicated and include work-arounds that were necessary in 2011, but have been made unnecessary in recent versions of OpenSim. I implore you: read the instructions.
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MuscleFiber Simulation Results
These files contain models and results for simulations of muscle fiber dynamics for five subjects walking at four speeds and running at four speeds.
Simulation Results
May 16, 2013

This package contains the results forward simulations of muscle fiber dynamics in five subjects walking (four speeds) and running (four speeds).  View License

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README.txt
Sep 25, 2016
6 KB
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Data/images/video
Details about using these simulation results and models.

Unscaled Model.osim
Sep 25, 2016
398 KB
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This model is based on the model described by Arnold et al. 2010 but uses the Schutte1993Muscle model formulation. Several changes were made to the original model to make it appropriate for the demands of this study.

Subject 01 Models.zip
Sep 25, 2016
48 KB
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README and .osim models

Subject 01 Run.zip
Sep 25, 2016
98 MB
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Subject 01 simulation results for running speeds.

Subject 01 Walk.zip
Sep 25, 2016
60 MB
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Data/images/video
Subject 01 simulation results for walking speeds.

Subject 02 Models.zip
Sep 25, 2016
49 KB
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README and scaled .osim models for Subject 02.

Subject 02 Run.zip
Sep 25, 2016
114 MB
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Subject 02 simulation results for running speeds.

Subject 02 Walk.zip
Sep 25, 2016
72 MB
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Data/images/video
Subject 02 simulation results for walking speeds.

Subject 04 Models.zip
Sep 25, 2016
44 KB
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Data/images/video
README and scaled .osim models for Subject 04.

Subject 04 Walk.zip
Sep 25, 2016
62 MB
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Data/images/video
Subject 04 simulation results for walking speeds.

Subject 04 Run.zip
Sep 25, 2016
143 MB
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Data/images/video
Subject 04 simulation results for running speeds.

Subject 18 Models.zip
Sep 25, 2016
57 KB
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Data/images/video
README and scaled .osim models for Subject 18.

Subject 18 Run.zip
Sep 25, 2016
136 MB
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Data/images/video
Subject 18 simulation results for running speeds.

Subject 18 Walk.zip
Sep 25, 2016
79 MB
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Data/images/video
Subject 18 simulation results for walking speeds.

Subject 19 Models.zip
Sep 25, 2016
49 KB
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Data/images/video
README and scaled .osim models for Subject 19.

Subject 19 Run.zip
Sep 25, 2016
122 MB
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Data/images/video
Subject 19 simulation results for running speeds.

Subject 19 Walk.zip
Sep 25, 2016
67 MB
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Data/images/video
Subject 19 simulation results for walking speeds.

PLEASE CITE THESE PAPERS

Edith M. Arnold, Samuel R. Hamner, Ajay Seth, Matthew Millard and Scott L. Delp. "How muscle fiber lengths and velocities affect muscle force generation as humans walk and run at different speeds" The Journal of Experimental Biology 216, 2150-2160 (2013) View


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Dec 3, 2020
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Edith Arnold

SimTK is maintained through Grant R01GM124443 01A1 from the National Institutes of Health (NIH). It was initially developed as part of the Simbios project funded by the NIH as part of the NIH Roadmap for Medical Research, Grant U54 GM072970.

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