Abstract
We present an open source software implementation of a popular mathematical method developed by M.R. Yeadon for calculating the body and segment inertia parameters of a human body. The software is written in a high level open source language and provides three interfaces for manipulating the data and the model: a Python API, a command-line user interface, and a graphical user interface. Thus the software can fit into various data processing pipelines and requires only simple geometrical measures as input.
Highlights
For dynamic analyses, it is typical to treat the human body as a collection of linked rigid bodies
The original source code is available in his dissertation but is not adaptable for inclusion in modern software packages, is not copyrighted under a liberal reuse license (i.e., Creative Commons AttributionNonCommercial-NoDerivs 2.5), and is not very user friendly
Because we often make use of Yeadon’s model in our research, we developed a modern object oriented program under a permissive license that allows for incorporation into other software packages and includes a graphical user interface for ease of use
Summary
Any reports and responses or comments on the article can be found at the end of the article. The second version of this paper primarily addresses the reviewers’ first round of comments. The model is defined in terms of segments, levels, and solids. Each of the four limbs has two segments, and the remainder (head and torso) consist of three more. Each of these segments is a rigid body, and has at least one rotational degree of freedom with respect to the adjacent segment to which it is attached.
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