We present a framework we have developed, OpenSim, for integrating disparate simulation components, particularly agent-based models (ABMs) that are increasingly being used for modelling complex social systems, into a single simulation. In this paper we focus on the integration of existing ABMs that have been independently developed and validated. The key challenge is to make as few modification...

In this study, we developed and validated a full-body musculoskeletal model in OpenSim to estimate muscle joint forces while performing various motor tasks using virtual reality (VR) system. We compared the results from our those previous studies by simulating kinematic kinetic data of participants pick-and-place lifting with without physically interactive VR Results showed that scaling errors ...

The complexity of shoulder mechanics combined with the movement of skin relative to the scapula makes it difficult to measure shoulder kinematics with sufficient accuracy to distinguish between symptomatic and asymptomatic individuals. Multibody skeletal models can improve motion capture accuracy by reducing the space of possible joint movements, and models are used widely to improve measuremen...

Numerical simulations are playing an important role in solving complex problems and have the potential to revolutionize medical decision making and treatment strategy. Musculoskeletal conditions cost the U.S. economy alone over $849 billion per year (7.7% of the U.S. Gross Domestic Product) and place great demands on healthcare systems worldwide [1]. This area could greatly benefit from computa...

INTRODUCTION Extended manual wheelchair use has been associated with repetitive strain injuries in the shoulder and has been identified as a contributing factor to upper limb pain experienced by manual wheelchair users with spinal cord injury (SCI) [1]. Due to the nature of their SCI, individuals with tetraplegia (formerly quadriplegia) may be at an even greater risk for developing shoulder inj...

(1) Flatfoot is a common malformation in both children and adults, which proper arch fails to develop. This study aimed see how over-the-counter running shoes improved the gait patterns of flatfoot patients. (2) Methods: Three healthy subjects were included study. was diagnosed by lateral talometatarsal angle more than 4 degrees talocalcaneal 30 degrees. All patient data captured using Vicon mo...

We determined muscle attachment points for the index, middle, ring and little fingers in an OpenSim upper-extremity model. Attachment points were selected to match both experimentally measured locations and mechanical function (moment arms). Although experimental measurements of finger muscle attachments have been made, models differ from specimens in many respects such as bone segment ratio, j...