Table of Contents
Testing Setup Checklist
Checklists are important part of completing any process-oriented task. A thorough explanation of the benefits of checklists can be fount in The Checklist Manifesto, this is our attempt to provide an entry-level checklist for capturing marker-based motion capture data. Of course, there are many crucial steps in collecting “routine” motion capture data and a normal collection session looks different in every lab. This checklist should be thought of as a starting point for your Motion Capture laboratory to build upon.
Have any suggestions? Let us know at support@has-motion.ca.
NOTE: Interested in collecting markerless motion capture data? The Multi-centre & Markerless Orthopaedic Assessment Wiki has a comprehensive overview of that study's collection and data management processes, including a day-to-day checklist.
Before Participant's Arrival
- Turn on ALL systems
- Verify position and orientation of all equipment
- Verify the position and orientation of Motion Capture Cameras
- Verify the position and orientation of Force Platforms
- Verify the position and orientation of Force Structures
- Verify the position and orientation of Obstacles or Environment objects
- Perform system calibration
- Perform static and/or dynamic calibrations of data collection devices
- Verify results against the Standards developed/referenced by your laboratory
- Verify the protocol being used for the session
- Verify the experimental protocol for the current data collection session
- Ensure appropriate system settings are selected
- As per experimental protocol, set and verify system settings, e.g., synchronise sampling rates, define marker thresholds and ranges, set up triggers etc.
- Zero force plates and perform CalTester test
- Perform Caltester test at a minimum of 2 locations on each force platform
- Verify against prior laboratory results
- Prepare necessary markers and supplies
Participant's Arrival
- Obtain informed consent
- Record participant details
- Ensure that there are no contraindications for the participant completing the data collection
- This may include data collection done via questionnaires or measurements
- If data collection includes questionnaires, check to make sure that they have been completed correctly
- Apply markers as per experimental protocol
- Take a set of digital pictures of the subject for post-hoc review of the marker placement
- Record static calibration trial
- Ensure all markers are visible during the static trial
- Verify recorded marker set
- Verify recorded marker set by launching Visual3D, creating model, and applying model template appropriate for the protocol
- Remove anatomical markers
- If necessary, remove anatomical markers not needed for tracking during dynamic motion trials
- Verify tracking using real-time
- Switch to Visual3D's real-time mode in Visual3D to verify that the tracking markers assigned to each segment are appropriate and that the force vectors make intuitive sense
- Record dynamic trials
- Verify force platform assignments
- Load data into Visual3D, assign movement trials to model, and verify force platform assignments
- Remove assignments to partial force contacts
- Remove assignments when two segments are in contact with the same platform
- Execute pipeline for creating event labels
- Verify that these event labels make intuitive sense. If not, data collection should be repeated
After Participant Leaves
- Clean up work station
- Execute pipeline for processing
- Load Report Template
- Verify the report
