Gyroscope Vector Magnitude: A Proposed Method for Measuring Angular Velocities

Details

• Personal Author:
  Chen H ; Fethke NB ; Schall MC
• Description:
  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. [Description provided by NIOSH]
• Subjects:
  Biomechanical Phenomena Ergonomics Musculoskeletal System Occupational Health Safety
• Keywords:
  Biomechanics Exposure Assessment Measurement Equipment Motion Studies Upper Extremities
• ISSN:
  0003-6870
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  Alabama ; Iowa ; OSHA Region 4 ; OSHA Region 7
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  109
• NIOSHTIC Number:
  nn:20067741
• Citation:
  Appl Ergon 2023 May; 109:103981
• Contact Point Address:
  Howard Chen, Industrial & Systems Engineering and Engineering Management Department, The University of Alabama in Huntsville, Huntsville, AL, USA
• Email:
  howard.chen@uah.edu
• Federal Fiscal Year:
  2023
• Performing Organization:
  University of Iowa
• Peer Reviewed:
  True
• Start Date:
  20050701
• Source Full Name:
  Applied Ergonomics
• End Date:
  20290630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:3371fbb4ccb9d41cf51593609d54dc75d08320ca871faf30ec13d70eaeea862a1f54cf434c811e8e1d60933d4eeed306eadf14d40a53d721c2f0b5d9180bc876
• Download URL:
  https://stacks.cdc.gov/view/cdc/230002/cdc_230002_DS1.pdf
• File Type:
  [PDF - 1.63 MB ]