The Reliability of Pelvic Floor Measures From Ultrasound Images Acquired at Rest and During Weightlifting Tasks.

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