Theia3D markerless motion capture
Rating applies to: Markerless (camera-based) 3D motion capture. It is not a rating or endorsement of Theia3D markerless motion capture as a company or of its quality, safety or results.
According to the company, multi-camera markerless 3D motion capture that tracks 124 keypoints without markers or special clothing.
Descriptions are based on publicly available information and are not independently verified. Features, pricing and availability change; confirm with the provider.
Company-reported details
According to the company's own pages, checked October 16, 2026. Not independently verified; confirm on the company's site. Not medical advice; measurement accuracy varies.
- Who it's for
- Researcher, clinic or performance lab
- What it measures
- Markerless 3D motion capture and biomechanics: the company says it tracks 124 keypoints with under 1 cm and 3° precision
- Form factor
- Multi-camera video system with Theia3D software; people can wear everyday clothing
- Price (as published)
- Not published on the pages we reviewed; contact the company
- Company pages
- Home page
Not medical advice or a diagnosis; medical decisions need a licensed clinician. See the comparison guides or Training Equipment for equipment.
About this evidence rating
We found one published study comparing a markerless system with marker-based capture during treadmill walking; joint-center differences were under about 2.5 cm for most joints and the authors concluded it could be a suitable alternative where practical benefits are preferred. The study was in healthy adults walking, and its authors include employees of a markerless vendor, so it does not establish accuracy for other movements, systems or smartphone-based tools.
This is an editorial opinion based on publicly available research, not medical advice or a regulatory determination. How ratings work. Last reviewed October 16, 2026.
Things to consider
- Accuracy depends on the system, camera setup and movement being measured.
- Outputs are not a diagnosis or an injury prediction; discuss concerns with a clinician.
- Pricing
- Pricing varies; check the provider's site
- Regions (as reported; verify)
- Global
Sources
Links are provided for reference. Citing a study does not imply its authors endorse this site or any product.
Some links on this site may be affiliate links; we may earn a commission if you buy through them, at no extra cost to you. Affiliate relationships and paid placements never change evidence ratings.
Longevity Ledger provides general information, not medical advice. Ratings are editorial opinions based on publicly available information. Consult a licensed clinician before changing medication, hormones, supplements, testing or training. Some links are affiliate or sponsored links; see our affiliate disclosure.