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Trampoline-Induced Changes in Pelvic Structure and Continence

NCT07183800 · Status: RECRUITING · Type: OBSERVATIONAL · Enrollment: 30

Last updated 2025-10-03

No results posted yet for this study

Summary

The goal of this clinical trial is to evaluate whether a short bout of high-intensity trampoline jumping induces urinary leakage or measurable changes in pelvic floor morphology in active females aged 18-40 who do not report symptoms of urinary incontinence. The main questions it aims to answer are:

Hypothesis 1: Does a single 10-minute trampoline protocol result in acute changes in pelvic floor structure, including bladder neck position, levator plate length, and/or posterior urethrovesical angle (PUVA)?

Hypothesis 2: Do participants report any urinary leakage during the jumping protocol, despite being asymptomatic at baseline?

Hypothesis 3: Do pelvic morphology changes recover within 30 minutes post-jumping, or do alterations persist?

Researchers will perform within-subject comparisons at multiple time points (pre-jump, immediately post-jump, and 30 minutes post-jump) using transperineal ultrasound imaging to assess structural changes.

Participants will:

* Attend one laboratory visit
* Complete baseline pelvic health questionnaires (ICIQ-UI Short Form and PFD Sentinel).
* Undergo 2D transperineal ultrasound imaging in the standing position at rest, immediately post-jumping, and 30 minutes post-jumping.
* Perform a 10-minute high-intensity jumping protocol on a mini-trampoline, while heart rate and perceived exertion are monitored.
* Verbally report any urine leakage during jumping using standardized descriptors.

Conditions

Interventions

OTHER

Water

Participants will undergo a standardized 10-minute high-intensity trampoline jumping protocol designed to elicit mechanical loading on the pelvic floor. Prior to the jumping session, bladder volume will be assessed via transabdominal ultrasound. If a participant's bladder contains less than 100 mL of urine, they will be asked to drink water and wait until a target range of 100-200 mL is reached to ensure consistent pre-jump bladder filling across participants. This approach minimizes variability in bladder volume, which could influence pelvic floor measurements.

Sponsors & Collaborators

  • University of Ottawa

    lead OTHER

Eligibility

Min Age
18 Years
Max Age
40 Years
Sex
FEMALE
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2025-07-16
Primary Completion
2025-12-31
Completion
2026-04-30

Countries

  • Canada

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07183800 on ClinicalTrials.gov