Cervical flexion-relaxation response to neck muscle fatigue in males and females

Details

• Personal Author:
  Chowdhury SK ; Nimbarte AD ; Zreiqat MM
• Description:
  In this study the effect of muscle fatigue on the cervical spine flexion-relaxation response was studied. Twenty healthy participants (10 males and 10 females) were recruited for data collection. The Sorenson protocol was utilized to induce neck muscle fatigue. Surface electromyography and optical motion capture systems were used to measure neck muscle activation and head-neck posture, respectively. A post-fatigue reduction in the Flexion-Relaxation Ratio (FRR) and higher FRR for females compared to males were observed. A post-fatigue decrease was also observed in the onset and offset angles resulting in an expansion of the myoelectric silence period. Gender had no effect on the onset and offset angles of the silence period. Post-fatigue shift in the onset and offset angles and the expansion of the silence period indicate an increased contribution by the passive viscoelastic tissues in stabilizing the cervical spine under fatigued condition. [Description provided by NIOSH]
• Subjects:
  Coal Coal Mining Mining Occupational Health Safety
• Keywords:
  Author Keywords: Fatigue Cervical Spine Electromyography Fatigue Flexion-relaxation Phenomenon Gender Humans Men MSD Muscles Musculoskeletal System Musculoskeletal System Disorders Neck Injuries Posture Women

  More +
• ISSN:
  1050-6411
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  OSHA Region 3 ; Pennsylvania ; West Virginia
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  24
• Issue:
  6
• NIOSHTIC Number:
  nn:20049322
• Citation:
  J Electromyogr Kinesiol 2014 Dec; 24(6):965-971
• Contact Point Address:
  Ashish D. Nimbarte, Industrial and Management Systems Engineering, West Virginia University, PO Box 6070, Morgantown, WV 26506-6107
• Email:
  Ashish.Nimbarte@mail.wvu.edu
• Federal Fiscal Year:
  2015
• Performing Organization:
  West Virginia University
• Peer Reviewed:
  True
• Start Date:
  20050701
• Source Full Name:
  Journal of Electromyography and Kinesiology
• End Date:
  20250630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:3fd80e6655f8e5c56c3c8735e4e0e5bb223c2141a2c3f1a63233811c7edc787337906657a89c60459b2d3a1081396140fa790257e2f273aeb3ce11001cc85e77
• Download URL:
  https://stacks.cdc.gov/view/cdc/203795/cdc_203795_DS1.pdf
• File Type:
  [PDF - 691.00 KB ]