The OpenSim Project and the National Center for Simulation in Rehabilitation Research (NCSRR) at Stanford invite you to join our next webinar, featuring Kat Steele from the University of Washington.

Title: Synergy-based Control in OpenSim: Coupled Muscle Activity in Static Optimization
Speakers: Kat Steele, University of Washington
Time: Wednesday, January 27, 2016 at 10:00 a.m. Pacific Standard Time


How humans control movement remains an open question. One theory suggests that muscles may be activated in weighted groups, commonly referred to as muscle synergies, modes, or modules. A small number of synergies have been shown to describe muscle activity in both animals and humans during tasks such as walking and reaching; however, whether these synergies reflect underlying neural control or other constraints remains unclear. An advantage of musculoskeletal simulation is that we can specify and test different control strategies.

In this webinar, Dr. Steele will discuss an OpenSim plug-in that lets users couple the activation of multiple muscles in weighted groups through static optimization. She will demonstrate applications of this plug-in for evaluating synergy-based control and testing the impacts of variable muscle weightings on tibiofemoral contact forces.

More information about this work can be found within the publication "Consequences of biomechanically constrained tasks in the design and interpretation of synergy analyses." To learn more about Dr. Steele's research at the University of Washington, visit

Participation is free, but you must register in advance. Attendance is limited to 100. We also ask that you join the webinar 5 minutes early to orient yourself to the webinar interface.

Visit our website for more information and registration. The website also includes links to recordings of past webinars:

The OpenSim Webinar Series is funded by the NIH National Center for Simulation in Rehabilitation Research (NCSRR). Find out more about the NCSRR and the webinar series by visiting our website