A simplified model for whole-body angular momentum calculation

Ming Liu, Amirreza Naseri, I. Chieh Lee, Xiaogang Hu, Michael D. Lewek, He Huang

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


The capability to monitor gait stability during everyday life could provide key information to guide clinical intervention to patients with lower limb disabilities. Whole body angular momentum (Lbody) is a convenient stability indicator for wearable motion capture systems. However, Lbody is costly to estimate, because it requires monitoring all major body segment using expensive sensor elements. In this study, we developed a simplified rigid body model by merging connected body segments to reduce the number of body segments, which need to be monitored. We demonstrated that the Lbody could be estimated by a seven-segment model accurately for both people with and without lower extremity amputation.

Original languageEnglish (US)
Article number103944
JournalMedical Engineering and Physics
StatePublished - Jan 2023

All Science Journal Classification (ASJC) codes

  • Biophysics
  • Biomedical Engineering


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