Assessment of neck and shoulder muscle fatigue using discrete wavelet transforms of surface electromyography

Details

• Personal Author:
  Chowdhury SK ; Creese RC ; Jaridi M ; Nimbarte AD
• Description:
  Objective assessment of neuromuscular fatigue is important for the early detection and prevention of risks of work-related musculoskeletal disorders (MSDs). Although, in recent years, a number of researchers have used discrete wavelet transforms (DWT) of surface electromyography (SEMG) to evaluate muscle fatigue, its application to neck and shoulder muscle fatigue assessment is not well established. Therefore, the purpose of this study was to establish DWT analysis as a suitable method to conduct quantitative assessment of neck and shoulder muscle fatigue caused by dynamic exertions. Six human participants performed 40 minutes of fatiguing repetitive arm and neck exertions. SEMG data from the right upper trapezius and left sternocleidomastoid muscles were recorded. Six most commonly used orthogonal wavelet functions were used to conduct DWT analysis. With the development of fatigue for most of the wavelet functions a significant increase in the power in the lower frequency bands of 12-23Hz and 23-46Hz was observed. Bior 3.1 wavelet showed the highest power, statistically consistent and meaningful power trend and the highest overall power contrast compared to the remaining five wavelets tested in this study. [Description provided by NIOSH]
• Subjects:
  Ergonomics Manufacturing And Industrial Facilities Mining Occupational Health Safety
• Keywords:
  Electromyography Exposure Levels Fatigue MSD Muscle Function Muscles Muscular Disorders Musculoskeletal Disorders Musculoskeletal System Disorders Neuromuscular System Neuromuscular System Disorders Risk Factors Work Capability Work Capacity Work Environment Workers

  More +
• ISBN:
  9780945289418
• ISSN:
  1071-1813
• Publisher:
  Human Factors and Ergonomics Society
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Proceedings
• Place as Subject:
  Massachusetts ; New York ; OSHA Region 1 ; OSHA Region 2 ; OSHA Region 3 ; West Virginia
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  56
• NIOSHTIC Number:
  nn:20049279
• Citation:
  Proceedings of the Human Factors and Ergonomics Society 56th Annual Meeting, October 22-26, 2012, Boston, Massachusetts. Santa Monica, CA: Human Factors and Ergonomics Society, 2012 Sep; 56:1145-1149
• Federal Fiscal Year:
  2012
• Performing Organization:
  State University of New York at Buffalo
• Peer Reviewed:
  True
• Start Date:
  20060701
• Source Full Name:
  Proceedings of the Human Factors and Ergonomics Society 56th Annual Meeting, October 22-26, 2012, Boston, Massachusetts
• End Date:
  20250630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:afd057e3c126b6dc4ba13523bfed952f179005dc42586ea3d62971f9fde2097ac0ab5bb0cfa86bc468372e4d733fca17d966a3cbe9f76e34d5b28b857b13840e
• Download URL:
  https://stacks.cdc.gov/view/cdc/203761/cdc_203761_DS1.pdf
• File Type:
  [PDF - 3.27 MB ]