Workday Habits and Fatigue of American Jockeys

Details

• Personal Author:
  Heebner NR ; Keener MM ; Tumlin KI ; Vice GC
• Description:
  Objective: The study aims to characterize the workday habits of American jockeys and evaluate the relationship between workday habits and fatigue through changes in postural stability (balance) across their workday. Methods: Thirty-seven jockeys participated in prerace and postrace day testing. Jockeys completed questionnaires on workday habits and a 2-minute balance test with triaxial accelerometers on the unstable surface and sacrum. Results: The median caloric intake during their workday was 263.8 kcal. Wilcoxon signed rank tests reported no significant changes in balance across the workday. Statistically significant (P < 0.05) correlations existed between sleep (t = -0.41) and number of races ridden (t = 0.37) with balance variables. Conclusions: American jockeys exhibit weight-cycling behaviors, primarily restricted caloric and fluid intake. No changes were evaluated in balance across the workday. Future research should focus on evaluating other fatigue mechanisms involving abdominal muscle fatigue and cognitive fatigue. [Description provided by NIOSH]
• Subjects:
  Biomechanical Phenomena Fatigue Musculoskeletal System Occupational Health Safety Sleep
• Keywords:
  Author Keywords: Accelerometer Biomechanics Horse Racing Muscle Function Postural Stability Posture Sports Medicine Work Practices
• ISSN:
  1076-2752
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  Birmingham Region [OSHA] ; Kentucky
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  260-267
• Volume:
  67
• Issue:
  4
• NIOSHTIC Number:
  nn:20070806
• Citation:
  J Occup Environ Med 2025 Apr; 67(4):260-267
• Contact Point Address:
  Michaela M. Keener, PhD, Sports Medicine Research Institute, College of Health Sciences, University of Kentucky, 720 Sports Center Drive, Lexington, KY 40506
• Email:
  m.keener@uky.edu
• Federal Fiscal Year:
  2025
• Performing Organization:
  University of Kentucky, Lexington
• Peer Reviewed:
  True
• Start Date:
  20120701
• Source Full Name:
  Journal of Occupational and Environmental Medicine
• End Date:
  20240630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:649c8eb6d5cbab346571c0cdf3c980bd251691dcd1515ee90a1cdbf9a10df6d52f8909e487b06631cd636353b52a6257e837bb31767f753e207c4958ecda7bfd
• Download URL:
  https://stacks.cdc.gov/view/cdc/208959/cdc_208959_DS1.pdf
• File Type:
  [PDF - 263.69 KB ]