As two segments rotate with respect to each other, the more complex the motion, the more challenging it is to describe mathematically. In biomechanics, defining the rotations is key to understanding the meaning of the data. One method is to use Cardan Sequences; however, in this tutorial, we explain what Euler Sequences are, and how they are used to calculate rotaions between segments.
Performing 3D calculations between segments is mathematically complex. When those segments are also moving, setting up those calculations is critical to understanding what your data means. One of the methods in Visual3D to obtain rotational data is to use Cardan Sequences. In this tutorial, we show you how to use Cardan Sequences in Compute Model Based Data and how the data changes based on your choices. We also show you the use of Euler Sequences, which in Visual3D are listed in the Cardan Sequence menu.
Calculating rotational data between two objects in space can be mathematically challenging, especially if those bodies are moving with respect to each other. In biomechanics, we regularly need to perform calculations between segments, and one of the ways we do that is by using Cardan Sequences. In this tutorial, we explain what they are.
Timing is key to understanding biomechanics. Unfortunately, we cannot rely on subjects to repeat motions at the exact same speed in every trial, or to start at a consistent interval after we start capturing their data. This is why it is so important to understand events and how to use them.
This video discusses what metric values are and how you can use them in Visual3D. Metric calculations give you a single numerical value that can be analyzed on its own or compared with other metric values.
Reporting data is a key part of communicating the findings from your biomechanics lab. This video discusses how you can use the “Reports” tab in Visual3D to create a customized report with the elements you want to analyze.
Once you’ve established the steps in your Visual3D workflow, you can automate the entire process through a pipeline. This not only saves time compared to manually completing the steps but it also reduces the potential for user error.
This video walks you through a typical workflow in Visual3D: opening motion files, adding calibration files, defining segments, applying models, processing, creating reports, and outputting data.
