Predictive Regression Modeling of Body Segment Parameters Using Individual-Based Anthropometric Measurements

Details

• Personal Author:
  Cham R ; Merrill Z ; Perera S
• Description:
  Body segment parameters such as segment mass, center of mass, and radius of gyration are used as inputs in static and dynamic ergonomic and biomechanical models used to predict joint and muscle forces, and to assess risks of musculoskeletal injury. Previous work has predicted body segment parameters (BSPs) in the general population using age and obesity levels as statistical predictors (Merrill et al., 2017). Estimated errors in the prediction of BSPs can be as large as 40%, depending on age, and the prediction method employed (Durkin and Dowling, 2003). Thus, more accurate and representative segment parameter inputs are required for attempting to predict modeling outputs such as joint contact forces, muscle forces, and injury risk in individuals. This study aims to provide statistical models for predicting torso, thigh, shank, upper arm, and forearm segment parameters in working adults using whole body dual energy x-ray absorptiometry (DXA) scan data along with a set of anthropometric measurements. The statistical models were developed on a training data set, and independently validated on a separate test data set. The predicted BSPs in validation data were, on average, within 5% of the actual in vivo DXA-based BSPs, while previously developed predictions (de Leva, 1996) had average errors of up to 60%, indicating that the new models greatly increase the accuracy in predicting segment parameters. These final developed models can be used for calculating representative BSPs in individuals for use in modeling applications dependent on these parameters. [Description provided by NIOSH]
• Subjects:
  Age Factors Biomechanical Phenomena Ergonomics Occupational Health Safety
• Keywords:
  Age Factors Anthropometry Author Keywords: Age Biomechanical Modeling Biomechanics BMI Body Mass Index Body Regions Body Segment Parameters Statistical Analysis X-ray Absorption

  More +
• ISSN:
  0021-9290
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  OSHA Region 3 ; Pennsylvania
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  96
• NIOSHTIC Number:
  nn:20058181
• Citation:
  J Biomech 2019 Nov; 96:109349
• Contact Point Address:
  Zachary Merrill, Department of Bioengineering, 301 Schenley Place, 4420 Bayard St., Pittsburgh, PA 15213, USA
• Email:
  zfm1@pitt.edu
• Federal Fiscal Year:
  2020
• Performing Organization:
  University of Pittsburgh at Pittsburgh
• Peer Reviewed:
  True
• Start Date:
  20130901
• Source Full Name:
  Journal of Biomechanics
• End Date:
  20170831
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:41aabf70622723fd49575436fc3de1c05e5b6686774a5d14180a4768021c506b435f7656240cdb0eff7d1fe490835be85ffc4a08a44ba28017e2bc0a2ba7dc6b
• Download URL:
  https://stacks.cdc.gov/view/cdc/221318/cdc_221318_DS1.pdf
• File Type:
  [PDF - 492.56 KB ]