Task and Sex Differences in Muscle Oxygenation During Handgrip Fatigue Development

Details

• Personal Author:
  Cavuoto LA ; Mantooth WP ; Mehta RK ; Rhee J
• Description:
  The purpose of this study was to examine task and sex differences in forearm muscle oxygenation, measured using near infrared spectroscopy, during sustained submaximal handgrip exercises. Forty-eight adults (50% males) performed fatiguing handgrip exercises at 20, 40, 60 and 80% of their maximum handgrip strength. While males and females exhibited similar levels of relative fatigability, forearm oxygenation was found to be task (i.e. contraction intensity and phase of fatigue development) and sex dependent. Higher contraction intensities were associated with greater desaturation over time. Compared to females, males exhibited greater desaturation as fatigue progressed and this was augmented at higher contraction intensities. These may be likely affected by sex differences in muscle mass, morphology and strength differences during exercises at relative intensities. Future work that explores sex differences in muscle oxygenation during absolute force intensities are needed, which may have implications for muscle fatigue development and potential fatigue mitigation strategies. [Description provided by NIOSH]
• Subjects:
  Ergonomics Fatigue Musculoskeletal System Occupational Health Safety Sex Characteristics
• Keywords:
  Author Keywords: NIRS Gender Gender Factors Intensity Muscle Function Oxygen Levels Sex Factors Strength Task Performance Upper Extremities Upper Extremity

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• ISSN:
  0014-0139
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  New York ; OSHA Region 2 ; OSHA Region 6 ; Texas
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  61
• Issue:
  12
• NIOSHTIC Number:
  nn:20054399
• Citation:
  Ergonomics 2018 Dec; 61(12):1646-1656
• Contact Point Address:
  Ranjana K. Mehta, Department of Industrial and Systems Engineering, Texas A&M University, 3131 TAMU, College Station, TX 77843, USA
• Email:
  rmehta@tamu.edu
• Federal Fiscal Year:
  2019
• Performing Organization:
  State University of New York at Buffalo
• Peer Reviewed:
  True
• Start Date:
  20140901
• Source Full Name:
  Ergonomics
• End Date:
  20160831
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:3da5404d5c7dad4291a51aa7262d0d1637652f9b3253fcbe4f0e17c60cfb770a5c2f9b1332b72fb02ce8cfca4843e5663df9d49e9e97c10fcae067e467618fda
• Download URL:
  https://stacks.cdc.gov/view/cdc/216975/cdc_216975_DS1.pdf
• File Type:
  [PDF - 1.14 MB ]