Step 1 - Load data

ProCalc always needs some motion-captured data to work with. The data is loaded from a C3D file, which may contain one or more of the following:

• 3D trajectories (XYZ positions of markers in space and time)
• Modeled data (joint angles, moments, forces, powers, and so on), for example, from the Plug-in Gait model
• Standard Vicon events (left/right/general foot strike/foot off/general)
• Analog data (for example, EMG or force plates)

When you start ProCalc, the main ProCalc interface is displayed:

The main window consists of four parts:

• Top left lists the variables or trials that you’re currently working with.
• Bottom left contains buttons, menus and other controls that let you modify the variables.
• Top right contains the 3D workspace that shows you what you’re working with.
• Bottom right contains a textual log output window.

To load data for this tutorial:

Before you begin, ensure you have downloaded the ProCalc Tutorials data as described in About the data for this tutorial.

1. At the top left, click the Data Management tab.
2. Navigate to the Getting Started session folder
3. Double-click Walking01 to open the trial in ProCalc.
   The trial is displayed in the 3D workspace as a stick figure, similar to the display in Vicon Nexus.