Data, models and methods (scripts and software) for: A biomechanical model of the scapulothoracic joint to accurately capture scapular kinematics during shoulder movements. PLOS One, 2015.
Abstract/Contents
- Abstract
We developed a rigid-body model of the scapulothoracic joint to describe the kinematics of the scapula relative to the thorax. This model describes scapular kinematics with four degrees of freedom: 1) abduction and 2) elevation of the scapula on an ellipsoidal thoracic surface, 3) upward rotation of the scapula normal to the thoracic surface, and 4) internal rotation of the scapula to lift the medial border of the scapula off the surface of the thorax. The surface dimensions and joint axes can be customized to match an individual’s anthropometry. We compared the model to “gold standard” bone-pin kinematics collected during three shoulder tasks and found modeled scapular kinematics to be accurate to within 2mm root-mean-squared error for individual bone-pin markers across all markers and movement tasks. As an additional test, we added random and systematic noise to the bone-pin marker data and found that the model reduced kinematic variability due to noise by 65% compared to Euler angles computed without the model. Our scapulothoracic joint model can be used for inverse and forward dynamics analyses and to compute joint reaction loads. The computational performance of the scapulothoracic joint model is well suited for real-time applications; it is freely available for use with OpenSim 3.2, and is customizable and usable with other OpenSim models.
This download contains the experimental bone-pin data, models and methods used to reproduce the findings of the this study: Seth A, Matias R, Veloso AP, Delp SL (2016) A Biomechanical Model of the Scapulothoracic Joint to Accurately Capture Scapular Kinematics during Shoulder Movements. PLoS ONE 11(1): e0141028. doi:10.1371/journal.pone.0141028
Description
Type of resource | software, multimedia |
---|---|
Date created | [ca. February 2012] - December 2015 |
Creators/Contributors
Author | Seth, Ajay | |
---|---|---|
Contributing author | Matias, Ricardo | |
Principal investigator | Delp, Scott |
Subjects
Subject | Shoulder mechanics |
---|---|
Subject | scapula |
Subject | human motion |
Subject | bone-pins |
Subject | upper-extremity dynamics |
Subject | inverse kinematics |
Genre | Dataset |
Bibliographic information
Related Publication | Ludewig PM, Phadke V, Braman JP, Hassett DR, Cieminski CJ, LaPrade RF (2009) Motion of the shoulder complex during multiplanar humeral elevation. J Bone Joint Surg Am 91:378–89 |
---|---|
Related item | |
Location | https://purl.stanford.edu/br087nj9017 |
Access conditions
- Use and reproduction
- User agrees that, where applicable, content will not be used to identify or to otherwise infringe the privacy or confidentiality rights of individuals. Content distributed via the Stanford Digital Repository may be subject to additional license and use restrictions applied by the depositor.
- License
- This work is licensed under a Creative Commons Attribution Non Commercial Share Alike 3.0 Unported license (CC BY-NC-SA).
Preferred citation
- Preferred Citation
- Seth A, Matias R, Veloso AP, Delp SL (2016) A Biomechanical Model of the Scapulothoracic Joint to Accurately Capture Scapular Kinematics during Shoulder Movements. PLoS ONE 11(1): e0141028. doi:10.1371/journal.pone.0141028
Collection
Stanford Research Data
View other items in this collection in SearchWorksContact information
- Contact
- aseth@stanford.edu
Also listed in
Loading usage metrics...