*NCSRR Support Survey Response Highlights*In April, we asked the community to share information about grants and other funding applications that benefitted in some way from OpenSim and NCSRR resources. We were excited to learn that over 50 members of the OpenSim community have submitted more than 120 applications to agencies including the NIH, NSF, DOD, CDC, VA, and FDA. Nearly 70% of these applications were funded. Thank you to everyone who replied to the survey and keep up the great research! *OpenSim Workshop at TGCS 2017* The OpenSim team at Stanford University is leading a workshop at the ISB Technical Group on Computer Simulation (TGCS) <http://isbweb.org/~tgcs/iscsb-2017/index.html> on July 20, 2017 in The Gold Coast, Australia. In this 3-hour workshop, the OpenSim team will use hands-on tutorials to help participants learn how to use the Matlab scripting interface with OpenSim 4.0. Learn more <http://opensim.stanford.edu/support/event_details.html?id=181&title=Workshop-at-TGCS-2017-Matlab-Scripting-in-OpenSim-4-0> about the workshop. *OpenSim 4.0 Tutorial at ISB 2017*The Stanford OpenSim team is also organizing an interactive tutorial at the 26th Congress of the International Society of Biomechanics (ISB) <http://www.biomech2017.com/index.php> taking place July 23-27, 2017 in Brisbane, Australia. The OpenSim team will lead hands-on examples on building muscle-driven simulations and will present the key new features of OpenSim 4.0. The teaching team includes Scott Delp, Jennifer Hicks, James Dunne, Chris Dembia, Carmichael Ong, Jennifer Yong, and Apoorva Rajagopal. Learn more <http://opensim.stanford.edu/support/event_details.html?id=185&title=Jumping-into-OpenSim-4-0-Interactive-Tutorial-at-ISB-2017> about the workshop. *OpenSim Research Symposium at ISB 2017* The third event in Australia this summer is a research symposium at ISB. The symposium will highlight the latest research from leaders in the field of musculoskeletal modeling and simulations, and close with a discussion about the challenges and opportunities for using OpenSim in biomechanics research. Speakers include Brian Umberger from the University of Massachusetts, Colin Smith from the University of Wisconsin-Madison, Chris Dembia from Stanford University, and Adrian Lai from Simon Fraser University. We hope you’ll join us. <http://opensim.stanford.edu/support/event_details.html?id=183&title=OpenSim-Research-Highlights-Symposium-at-ISB-2017> *New Matlab GUI Tool Optimizes Task Weights for RRA in OpenSim* Michael Samaan of the University of California San Francisco and Old Dominion University, along with his colleagues, developed and shared a Matlab Graphical User Interface (GUI) tool that implements two different numerical optimization algorithms that can be used to determine the optimal task weights for use in the Residual Reduction Algorithm (RRA) in OpenSim. Download the tool here <https://simtk.org/projects/rra-opt-gui>. Two articles (Weinhandl et al., 2013 <http://www.sciencedirect.com/science/article/pii/S0268003313001265>; Samaan et al., 2016 <http://www.tandfonline.com/doi/full/10.1080/10255842.2016.1183123>) related to this work have been published in the journals *Clinical Biomechanics* and *Computer Methods in Biomechanics and Biomedical Engineering*. *Preparatory Co-Activation of the Ankle Muscles May Prevent Ankle Inversion Injuries* Matthew Demers and colleagues at Stanford University have published an article <http://www.sciencedirect.com/science/article/pii/S0021929016311563> that uses OpenSim musculoskeletal simulations to evaluate muscle coordination strategies that could potentially prevent ankle sprains. The researchers generated simulations of landings on a 30 degree incline and showed that co-activation of ankle evertor and invertor muscles just before ground contact could prevent injury. In contrast, they found that stretch reflexes were too slow and would therefore be ineffective for injury prevention. The article appears in the February 2017 issue of the *Journal of Biomechanics*. The model, data, and software tools are also available on the team’s Simtk project page <https://simtk.org/projects/ankle-sprains/>. -- *Jennifer Hicks, Ph.D.* Director of Data Science | Mobilize Center <http://mobilize.stanford.edu> Associate Director | NCSRR <http://www.stanford.edu/group/opensim/about/index.html> R&D Manager | OpenSim <http://opensim.stanford.edu/> Stanford University 650-498-4403 | jenhicks@stanford.edu