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Pelvic floor tissue damping during running using an intra-vaginal accelerometry approach
Stefan Niederauer1, Marie-Ève Bérubé2, Ana Brennan3
1Department of Biomedical Engineering, University of Utah, Salt Lake City, United States.
Clinical Biomechanics (Bristol, Avon)
|January 2, 2022
Summary
This study introduces a new method to measure pelvic floor vibrations during running. Findings suggest specific vibrational damping patterns may indicate pelvic floor dysfunction in women.
Area of Science:
- Biomechanics
- Physiology
- Women's Health
Background:
- Pelvic floor disorders are linked to cumulative loading during exercise.
- The exact role of pelvic floor loading in these disorders is not well understood.
Purpose of the Study:
- To present a novel method for evaluating vibrational frequency damping of the female pelvic floor.
- To explore the utility of this method in a preliminary evaluation of pelvic floor disorders.
Main Methods:
- Female participants ran on a treadmill with intravaginal and hip-mounted accelerometers.
- Pelvic floor displacement was calculated via double integration of accelerometer data.
- Wavelet-based analysis determined vibrational damping coefficients, considering continence status, parity, speed, and time.
Main Results:
- No overall difference in damping between continent and incontinent women.
- Parous women showed less damping (25-40 Hz) than nulliparae.
- Incontinent women exhibited lower damping (4.5-5.5 Hz) at 7 km/h compared to continent women.
Conclusions:
- Intravaginal vibrational damping shows potential for detecting biomechanical mechanisms in female exercise-related pelvic floor disorders.
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