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Related Concept Videos

Muscles of the Pelvic Floor and Perineum01:26

Muscles of the Pelvic Floor and Perineum

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The muscles of the pelvic floor and perineum are crucial for supporting the pelvic organs, controlling continence, and aiding in sexual function, childbirth, and core stability. They are typically divided into the superficial perineal layer and the deep pelvic floor layer.
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Uroflowmetry is a non-invasive urodynamic test designed to measure various aspects of urination, including volume, flow rate, and the time to void. This test is crucial for diagnosing and assessing conditions such as bladder outlet obstruction, bladder dysfunction, incomplete bladder emptying, incontinence, and urinary tract blockages caused by benign prostatic hyperplasia (BPH) and urethral strictures.Pre-Test Instructions:Before a uroflowmetry test, patients are typically advised to drink...
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Voiding Cystourethrography (VCUG) and Cystography are specialized radiographic procedures used to examine the structure and function of the bladder and urethra.Voiding Cystourethrography (VCUG)A Voiding Cystourethrogram (VCUG) is a diagnostic imaging procedure that assesses the anatomy and function of the lower urinary tract. It focuses on the bladder, bladder neck, and urethra, helping detect abnormalities such as vesicoureteral reflux (VUR)—the backward or reverse flow of urine into the...
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Assessment of the Rectum and Anus01:25

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Evaluating the rectum and anus plays a crucial role in conducting a thorough physical examination of the gastrointestinal system. Although it may be uncomfortable and often embarrassing for the patient, it holds immense diagnostic value, particularly in detecting gastrointestinal diseases and abnormalities. This guide will explain how to perform this assessment using inspection and palpation methods.
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Measurement and Interpretation of Intra-Abdominal Pressure During Physical Activity: A Scoping Review.

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The Posterior Urethrovesical Angle in Continent and Incontinent Women Before and After a Treadmill Run.

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Intravaginal devices for running-induced urinary incontinence symptoms in females: a study protocol.

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Does a Linear Array of Pressure Sensors Placed within the Vagina Really Measure the Ability of the Pelvic Floor to Respond to Increases in Intra-abdominal Pressure During High-Impact Activities?

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Related Experiment Video

Updated: Sep 17, 2025

Quantification of Levator Ani Hiatus Enlargement by Magnetic Resonance Imaging in Males and Females with Pelvic Organ Prolapse
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Is pelvic floor loading in female runners associated with post-run changes in pelvic floor morphometry or function?

Marie-Eve Berube1, Stefan Niederauer2, Ryan Graham3

  • 1School of Rehabilitation Sciences, University of Ottawa, Ottawa, ON, Canada.

BJU International
|June 30, 2025
PubMed
Summary

Pelvic floor loading during running did not affect pelvic organ support changes or urine leakage. This study found no link between running intensity and these outcomes in female runners.

Keywords:
accelerationsbiomechanicsintra‐abdominal pressurepelvic floorposterior fornix sensor pressurerunningurinary incontinence

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Comparative Analysis of Lower Limb Kinematics between the Initial and Terminal Phase of 5km Treadmill Running
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Comparative Analysis of Lower Limb Kinematics between the Initial and Terminal Phase of 5km Treadmill Running

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Area of Science:

  • Biomechanics
  • Urogynecology
  • Sports Medicine

Background:

  • Running can lead to pelvic floor muscle (PFM) dysfunction and stress urinary incontinence (SUI) in female athletes.
  • Understanding the relationship between running biomechanics and PFM response is crucial for injury prevention and management.

Purpose of the Study:

  • To determine if pelvic floor loading during a standardized running protocol correlates with immediate changes in pelvic floor morphometry, PFM function, or incontinence pad weight gain.
  • To investigate potential differences in these associations between runners with and without running-induced SUI (RI-SUI).

Main Methods:

  • Adult female runners (n=38) with and without RI-SUI underwent a 37-minute treadmill run.
  • Pelvic floor loading was measured using vaginal pressure sensors and pelvic accelerometers.
  • Pelvic morphometry and PFM function were assessed pre- and post-run via ultrasonography and dynamometry.
  • Urine leakage was quantified by incontinence pad weight gain.

Main Results:

  • Post-run, increased levator hiatus size and lower bladder neck position were observed, irrespective of RI-SUI status.
  • Higher pelvic accelerations correlated with decreased passive PFM stiffness, but not with morphometric changes or PFM force.
  • No association was found between pelvic floor load exposure measures and changes in PFM force-generating capacity.
  • Among runners with RI-SUI, slower vector accelerations were linked to greater pad weight gain.

Conclusions:

  • The extent of pelvic floor loading during running does not appear to influence immediate reductions in static pelvic organ support.
  • Running load magnitude did not correlate with urine leakage volume in this cohort.
  • Further research may explore specific running patterns or other factors influencing PFM response to exercise.