A simplified model for whole-body angular momentum calculation

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

doi:10.1016/j.medengphy.2022.103944

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 journal › Article › peer-review

2 Scopus citations

Abstract

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 (L_body) is a convenient stability indicator for wearable motion capture systems. However, L_body 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 L_body could be estimated by a seven-segment model accurately for both people with and without lower extremity amputation.

Original language	English (US)
Article number	103944
Journal	Medical Engineering and Physics
Volume	111
DOIs	https://doi.org/10.1016/j.medengphy.2022.103944
State	Published - Jan 2023

All Science Journal Classification (ASJC) codes

Biophysics
Biomedical Engineering

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10.1016/j.medengphy.2022.103944

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title = "A simplified model for whole-body angular momentum calculation",

abstract = "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.",

author = "Ming Liu and Amirreza Naseri and Lee, {I. Chieh} and Xiaogang Hu and Lewek, {Michael D.} and He Huang",

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doi = "10.1016/j.medengphy.2022.103944",

language = "English (US)",

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AU - Liu, Ming

AU - Naseri, Amirreza

AU - Lee, I. Chieh

AU - Hu, Xiaogang

AU - Lewek, Michael D.

AU - Huang, He

PY - 2023/1

Y1 - 2023/1

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AB - 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.

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JO - Medical Engineering and Physics

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A simplified model for whole-body angular momentum calculation

Abstract

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