The relationship between intra-abdominal pressure and body acceleration during exercise.
Open accessAbstract
Objectives: High intra-abdominal pressure (IAP) may influence the development of pelvic floor disorders. We and others have used intravaginal pressure transducers to measure IAP in women during exercise and daily activities, but utilizing the transducer for long-term measurements creates compliance issues. Waist-worn accelerometers are prominent in research and may be a reliable alternative for approximating IAP. We hypothesized that there are pair-wise positive correlations between the mean maximal accelerometer vector magnitude and 2 IAP measurements: mean maximal IAP and area under the curve (AUC). Methods: Twenty-five women who regularly participated in exercise performed 13 activities. Intra-abdominal pressure was measured with an intravaginal transducer and acceleration with a waist-worn accelerometer. We determined the mean maximal IAP, AUC for IAP, and mean maximal accelerometer vector magnitude for each activity and participant. The relationship between IAP and acceleration was determined by computing the Pearson correlation coefficient (R) and the 95% confidence interval for mean maximal accelerometer vector magnitude versus mean maximal IAP and mean maximal accelerometer vector magnitude versus AUC for IAP. Results: The R values were 0.7353 for mean maximal accelerometer vector magnitude versus mean maximal IAP (including walking) and 0.5059 for mean maximal accelerometer vector magnitude versus AUC for IAP (excluding walking). Walking at 3 speeds, analyzed separately, presented R values of 0.72208 for mean maximal IAP and 0.21678 for AUC. Conclusion: Waist-worn accelerometers may provide a viable method for approximating mean maximal IAP in a population of women during most activities.
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Accelerometers were used as a proxy to estimate mean IAP and have previously demonstrated good correlation with mean maximal IAP with a variety of activities.
“Finally, accelerometers were used as a proxy to estimate mean IAP and have previously demonstrated good correlation with mean maximal IAP with a variety of activities.”
From Standard Restrictions vs Expedited Activity After Pelvic Organ Prolapse Surgery (2023) · cites this paper as [28]
The Discussion reports a strong correlation (0.7353) between mean maximal accelerometer vector magnitude and mean maximal IAP across activities, supporting the correlation claim. It says accelerometry may approximate maximal IAP, but does not establish it as a proxy for mean IAP generally; it also identifies static exercises with high abdominal muscle recruitment as exceptions. (LLM, conf=0.83)
Experimental — accuracy not yet measuredThere are limitations to the information that the accelerometer may provide during static exercises that generate minimal accelerometer movement.
“However, there are limitations to the information that the accelerometer may provide during static exercises that generate minimal accelerometer movement.28”
From Standard Restrictions vs Expedited Activity After Pelvic Organ Prolapse Surgery (2023) · cites this paper as [28]
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- Authors
- de Gennaro, J. D., de Gennaro, C. K., Shaw, J. M., Petelenz, T. J., Nygaard, I. E., & Hitchcock, R. W.
- Affiliations
- Department of Bioengineering,
- School of Medicine,
- Department of Health, Kinesiology, and Recreation, and
- University of Utah (US)
- Corresponding author
- Petelenz, Tomasz J.
- Hitchcock, Robert W.
- Venue
- Female Pelvic Medicine & Reconstructive Surgery
- Published
- 2019-05
- Volume
- 25
- Issue
- 3
- Pages
- 231-237
- ISSN
- 2151-8378 (ISSN-L)
- PMC
- PMC5949233
- OpenAlex
- W2770028135
- Cited by
- 22
- References
- 28
- Citations by year
- 2026: 3 · 2025: 5 · 2024: 2 · 2023: 3 · 2022: 2 · 2021: 1 · 2020: 5 · 2019: 1
- FWCI
- 1.43
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Urogynecology (publishedVersion)
- PubMed (publishedVersion)
- PubMed Central (acceptedVersion)
- Funders
- National Institutes of Health
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (P01HD080629)
- Topics
- Health Sciences › Medicine › Rheumatology › Pelvic floor disorders treatments
- Health Sciences › Medicine › Physiology › Physical Activity and Health
- Physical Sciences › Engineering › Biomedical Engineering › Lower Extremity Biomechanics and Pathologies
- Keywords
- intra-abdominal pressure, waist-worn accelerometers, pelvic floor dysfunction, physical activity, area under the curve, walking, women
- MeSH terms
- Acceleration, Adolescent, Adult, Female, Humans, Middle Aged, Pressure, Exercise, Walking, Monitoring, Ambulatory, Abdominal Cavity, Young Adult, Accelerometry
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