Intrinsic Factors Contributing to Elevated Intra-Abdominal Pressure

Details

• Personal Author:
  Foreman KB ; Hitchcock R ; Hunt G ; Merryweather A ; Niederauer S
• Description:
  Pelvic floor disorders affect 24% of US women, and elevated intra-abdominal pressure may cause pelvic injury through musculoskeletal strain. Activity restrictions meant to reduce pelvic strain after traumatic events, such as childbirth, have shown little benefit to patients. Reported high variability in abdominal pressure suggests that technique plays a substantial role in pressure generation. Understanding these techniques could inform evidence-based recommendations for protective pelvic care. We hypothesized use of a motion-capture methodology could identify four major contributors to elevated pressure: gravity, acceleration, abdominal muscle contraction, and respiration. Twelve women completed nineteen activities while instrumented for whole body motion capture, abdominal pressure, hip acceleration, and respiration volume. Correlation and partial least squares regression were utilized to determine primary technique factors that increase abdominal pressure. The partial least squares model identified two principal components that explained 59.63% of relative intra-abdominal pressure variability. The first component was primarily loaded by hip acceleration and relative respiration volume, and the second component was primarily loaded by flexion moments of the abdomen and thorax. While reducing abdominal muscle use has been a primary strategy in protective pelvic floor care, the influence of hip acceleration and breathing patterns should be considered with similar importance in future work. [Description provided by NIOSH]
• Subjects:
  Biomechanical Phenomena Musculoskeletal System Occupational Health Pregnancy Safety Women
• Keywords:
  Abdomen Author Keywords: Pelvic Floor Disorders Biomechanics Intra-abdominal Pressure Motion Capture Motion Studies Muscle Physiology Muscles Musculoskeletal System
• ISSN:
  1476-8259
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  OSHA Region 8 ; Utah
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  26
• Issue:
  8
• NIOSHTIC Number:
  nn:20066943
• Citation:
  Comput Methods Biomech Biomed Eng 2023 Jun; 26(8):941-951
• Contact Point Address:
  Stefan Niederauer, Department of Biomedical Engineering, University of Utah, Salt Lake City, United States
• Email:
  stefan.niederauer@utah.edu
• Federal Fiscal Year:
  2023
• Performing Organization:
  University of Utah
• Peer Reviewed:
  True
• Start Date:
  20050701
• Source Full Name:
  Computer Methods in Biomechanics and Biomedical Engineering
• End Date:
  20280630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:5ff0c8ff8845912bfe6d106b1b2312c590651a9ff22b8bd49ed916c49f5cfb19435851de472fd6d8f6c10a236cb016032b37317866f595b4d7880b14a3f84547
• Download URL:
  https://stacks.cdc.gov/view/cdc/231222/cdc_231222_DS1.pdf
• File Type:
  [PDF - 2.08 MB ]