Reliability of pelvic floor measurements from ultrasound during rest and during weightlifting

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study evaluates both inter-rater and intra-rater reliability of pelvic floor morphometry measured on transperineal ultrasound. Images are taken at rest and during dynamic barbell resistance tasks (back squats and deadlifts at 40%, 60%, and 80% of 1RM) after a bladder filling protocol. Two trained assessors perform imaging, and offline analysis measures levator plate length, levator plate angle, bladder neck height, and anorectal junction height across four conditions: supine, standing, and the loaded tasks. Reliability will be assessed for image acquisition and measurement under each condition to determine readiness for future research linking pelvic floor behavior with exercise-induced urinary incontinence.

Why it matters

Who can join: the full rules

Inclusion Criteria:

* Individuals with female or vulvo-vaginal anatomy
* Age 18 years or older
* No history of urogenital surgery
* Not currently pregnant or less than 12 months postpartum, if applicable
* Be able to safely perform a barbell back squat and deadlift exercises with a submaximal load of 80% of their body weight
* Able to communicate in English to sufficiently understand study procedures and provide informed consent

Exclusion Criteria:

* Presence of significant medical conditions that could affect safety, including cardiac, pulmonary, metabolic or neurological conditions
* Currently pregnant or less than 12 months postpartum
* Current pelvic, hip, or low back injury that limits lifting or impairs safe performance of squats or deadlifts with a barbell
* Unable to safely lift 80% of their body weight
* Known pelvic organ prolapse \> stage 2

Where it's running

• Eclipse Physiotherapy and Sport Injury Clinic
  Langley, British Columbia, Canada Recruiting
• beSTRONG Training
  North Vancouver, British Columbia, Canada Recruiting

Study contacts

• Principal investigator: Linda McLean — University of Ottawa
• Study coordinator: Adrienne Sim
• Email: mfmlab_LIFT@uottawa.ca
• Phone: 613-562-5800

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.