A series exploring the many options available in Visual3D and showing how to use the tools to get the most out of your data.
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In order to calculate segment velocity, the most reliable method is to use Compute Model Based Data. As one of the model based items available in the command, segment velocity can be calculate with respect to different segments using the resolution coordinate system of choice.
There are several model based items available in the command, depending on the type of energy you are interested in calculating. In this tutorial, we show you how to calculate the various types of energy relevant for biomechanics.
Although not the most common biomechanical value to calculate, momentum can be extremely useful for various types of projects. Compute Model Based Data makes it easy to calculate both linear and angular momentum directly from the pipeline.
The segment residual is a very useful tool to evaluate the quality of the fit of a segment’s tracking to the markers used for it. Compute Model Based Data gives the option to obtain the segment residual for any segment included in the biomechanical model.
The model center of gravity is a Compute Model Based Data calculation that gives an estimate of the center of gravity based on the biomechanical model in Visual3D.
A somewhat rarely used Compute Model Based Data function is to calculate the segment progression angle. It is an interesting feature that can be used to obtain the angle between the foot and the longitudinal direction of motion.
To quantify the acceleration necessary to overcome the model’s inertia, a very useful value to calculate is the model moment of inertia. In this tutorial, we show you how to calculate it in Visual3d.
Compute model based data includes an option to calculate the model angular momentum. In this tutorial, we show you how to use this function in Visual3.
Many Visual3D commands, including Compute model based data, use segment short names to refer to body segments in order to perform calculations. In this tutorial, we show you how to use these segment names in Visual3D.
The data in the Kinetic_Kinematic folder is usually overlooked. However, it is already calculated from your biomechanical model, and depending on your application, you might find the data useful. In this tutorial, we explain the contents of the Kinetic_Kinematic folder.