Comparison of plugin and redundant marker sets to analyze gait kinematics between different populations
Run Ji, Wayne Yuk-wai Lee, Xinyu Guan, Bin Yan, Lei Yang, Jiemeng Yang, Ling Wang, Chunjing Tao, Shengzheng Kuai, Yubo Fan · 2023
Read Comparison of plugin and redundant marker sets to analyze gait kinematics between different populations by Run Ji, Wayne Yuk-wai Lee, Xinyu Guan, Bin Yan, Lei Yang, Jiemeng Yang, Ling Wang, Chunjing Tao, Shengzheng Kuai, Yubo Fan (2023) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-10717987.txt.
Description
Motion-capture labs measure walking by tracking reflective markers on the body, but labs choose different marker sets, and the choice may change the answer. Run Ji and co-authors compared the standard plugin marker set against a redundant set with extra markers, in different populations walking on the level. The extra markers aim to harden the measurement against misplaced, hidden, or noisy markers.
The two sets disagreed significantly on some hip, knee, and ankle angles in every plane of movement, and which variables disagreed depended on the population. One group difference appeared only with the redundant set, another only with the plugin set, and the redundant set varied less within each person. The authors warn that comparisons across studies using different sets are risky, and they recommend the redundant set as the steadier choice.
Catalog record
| CREATOR | Run Ji, Wayne Yuk-wai Lee, Xinyu Guan, Bin Yan, Lei Yang, Jiemeng Yang, Ling Wang, Chunjing Tao, Shengzheng Kuai, Yubo Fan |
|---|---|
| YEAR | 2023 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 26 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |