Journal article
Gyroscope vector magnitude: A proposed method for measuring angular velocities
Applied ergonomics, Vol.109, 103981
05/2023
DOI: 10.1016/j.apergo.2023.103981
PMID: 36739779
Abstract
High movement velocities are among the primary risk factors for work-related musculoskeletal disorders (MSDs). Ergonomists have commonly used two methods to calculate angular movement velocities of the upper arms using inertial measurement units (accelerometers and gyroscopes). Generalized velocity is the speed of movement traveled on the unit sphere per unit time. Inclination velocity is the derivative of the postural inclination angle relative to gravity with respect to time. Neither method captures the full extent of upper arm angular velocity. We propose a new method, the gyroscope vector magnitude (GVM), and demonstrate how GVM captures angular velocities around all motion axes and more accurately represents the true angular velocities of the upper arm. We use optical motion capture data to demonstrate that the previous methods for calculating angular velocities capture 89% and 77% relative to our proposed method.
Details
- Title: Subtitle
- Gyroscope vector magnitude: A proposed method for measuring angular velocities
- Creators
- Howard ChenMark C Schall - Auburn UniversityNathan B Fethke - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Applied ergonomics, Vol.109, 103981
- DOI
- 10.1016/j.apergo.2023.103981
- PMID
- 36739779
- NLM abbreviation
- Appl Ergon
- ISSN
- 0003-6870
- eISSN
- 1872-9126
- Language
- English
- Electronic publication date
- 05/2023
- Date published
- 05/2023
- Academic Unit
- Roy J. Carver Department of Biomedical Engineering; Occupational and Environmental Health; Industrial and Systems Engineering; Injury Prevention Research Center
- Record Identifier
- 9984365160302771
Metrics
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