New publication on the repeatability of OpenCap

We are happy to share our latest research findings on Opencap, a smartphone- and web-based markerless motion capture system.
This study delves into the intersession repeatability of OpenCap and the effects of clothing on gait kinematics. While there has been quite a lot of research on concurrent validity of 3D markerless systems, research on reliability for markerless is still very limited and non-existing for OpenCap.

The Key-Highlights and take-away messages of this study:

• Test-Retest Study: Conducted with 19 healthy volunteers performing walking and sit-to-stand tasks in different clothing conditions.
• Effects of clothing: We analyzed the effects of clothing (minimal vs. street wear) on reliability.
• While markerless might not be as accurate as marker-based systems one big advantage of this technology seems to be its reliability.
• Clothing had minimal effects, however, maintaining consistent clothing in repeated measures studies is still recommended to minimize overall variability.

Check out the full paper here: https://doi.org/10.1016/j.jbiomech.2024.112281