An observational study in Urinary Incontinence (UI) and Urinary Incontinence , Stress, sponsored by University of Valencia. Enrolling by invitation at 1 site in Spain. Open to participants aged 18 Years to 35 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-07-23.
Sponsored by University of Valencia · Observational
This observational cross-sectional study aims to investigate the association between participation in high-impact sports, physical activity level, and urinary incontinence in young adults. The study will compare six groups based on sex and physical activity level: male and female high-impact sports participants, physically active males and females who do not participate in high-impact sports, and sedentary males and females.
Participants aged 18-35 years will undergo a single assessment including sociodemographic and medical information, physical activity assessment, urinary incontinence questionnaires, sport-related characteristics, psychosocial questions regarding the influence of social taboos on questionnaire responses, lower-limb muscle strength testing using a load cell, and vertical jump performance assessment.
The study aims to describe the prevalence, severity, type, and impact of urinary incontinence across different activity levels and sexes, and to explore potential associations with lower-limb strength, jump performance, and sport-related characteristics.
Urinary incontinence is a common condition that may affect both women and men and has been associated with physical activity and participation in high-impact sports. Although regular exercise provides substantial health benefits, repetitive increases in intra-abdominal pressure during high-impact activities may contribute to pelvic floor dysfunction in susceptible individuals. Most previous studies have focused on female athletes from specific sports, while evidence including both sexes and different physical activity levels remains limited.
This observational cross-sectional study will compare urinary incontinence characteristics among six population groups defined according to sex and physical activity level: male and female participants in high-impact sports, physically active males and females who do not participate in high-impact sports, and sedentary males and females.
Participants will attend a single face-to-face assessment session after providing written informed consent. During the visit, sociodemographic and clinical information, physical activity characteristics, sport-related variables, urinary incontinence questionnaires, and psychosocial questions related to social taboos and response honesty will be collected. Lower-limb muscle strength will be assessed using a load cell system, and jump performance will be evaluated using the My Jump 2 application.
The primary objective is to compare the prevalence, severity, type, and impact of urinary incontinence across the different study groups. Secondary analyses will explore the relationship between urinary incontinence and physical activity level, lower-limb muscle strength, jump performance, sport-related characteristics, and selected demographic and clinical variables.
Participants will be recruited through social media, institutional dissemination, and sports clubs using voluntary convenience and snowball sampling. All assessments will be performed by trained researchers following standardized procedures.
651 studies on the registry are indexed under Urinary Incontinence, Stress; 120 are open to participants now.
This study's planned enrollment of 270 is above the median of 130 across 127 observational studies indexed under Urinary Incontinence, Stress.
Browse Urinary Incontinence, Stress studies →University of Valencia is the lead sponsor of 357 studies on the registry; 75 are open to participants now.
Compared within Urinary Incontinence, Stress, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Urinary Incontinence. The counts are of registry records indexed under each term, refreshed daily. How we classify →
The study population will consist of community-dwelling adults aged 18-35 years recruited from the general population and sports clubs. Participants will include males and females who regularly participate in high-impact sports, physically active individuals who do not participate in high-impact sports, and sedentary individuals. Recruitment will be conducted through social media, institutional advertisements, sports clubs, and snowball sampling. All participants will voluntarily contact the research team and will undergo a single face-to-face assessment after providing written informed consent.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Regular participation in high-impact sports (≥2 training sessions per week for at least the previous 2 years).
Physically active individuals meeting the World Health Organization recommendations (≥150 minutes/week of moderate-intensity activity, ≥75 minutes/week of vigorous-intensity activity, or an equivalent combination), without regular participation in high-impact sports.
Sedentary individuals who do not meet the World Health Organization physical activity recommendations.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
BMI (body mass index)
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Males aged 18-35 years who regularly participate in high-impact sports (at least twice per week for the previous two years).
Diagnostic Test: No Intervention: Observational Cohort
Females aged 18-35 years who regularly participate in high-impact sports (at least twice per week for the previous two years).
Diagnostic Test: No Intervention: Observational Cohort
Males aged 18-35 years who meet the World Health Organization physical activity recommendations but do not participate in high-impact sports.
Diagnostic Test: No Intervention: Observational Cohort
Females aged 18-35 years who meet the World Health Organization physical activity recommendations but do not participate in high-impact sports.
Diagnostic Test: No Intervention: Observational Cohort
Males aged 18-35 years who do not meet the World Health Organization physical activity recommendations.
Diagnostic Test: No Intervention: Observational Cohort
Females aged 18-35 years who do not meet the World Health Organization physical activity recommendations.
Diagnostic Test: No Intervention: Observational Cohort
No intervention
Urinary incontinence severity
Urinary incontinence severity assessed using the International Consultation on Incontinence Questionnaire-Urinary Incontinence Short Form (ICIQ-UI SF). Higher scores indicate greater symptom severity and impact on quality of life. The total score ranges from 0 to 21, with higher scores indicating more severe urinary incontinence symptoms and greater impact on quality of life.
Time frame: Baseline (single study visit)
Urinary incontinence-related quality of life
Quality of life associated with urinary incontinence assessed using the Incontinence Quality of Life Questionnaire (I-QOL). The total score ranges from 0 to 100, with higher scores indicating better urinary incontinence-related quality of life.
Time frame: Baseline (single study visit)
Lower-limb muscle strength
Maximum voluntary force and mean voluntary force of hip adduction, abduction, flexion, extension, internal rotation, and external rotation measured using a load cell and ChronoJump software.
Time frame: Baseline (single study visit)
Vertical jump performance
Vertical jump performance assessed using the My Jump 2 application.
Time frame: Baseline (single study visit)
Physical activity level
Physical activity level assessed using the International Physical Activity Questionnaire (IPAQ). Physical activity is expressed as metabolic equivalent (MET)-minutes per week and classified into low, moderate, or high physical activity levels, according to the IPAQ scoring protocol. Higher MET-minutes per week indicate greater levels of physical activity.
Time frame: Baseline (single study visit)
Plan to share: No
No publications or documents are linked to this record.
Started Sep 2025 (actual). Primary completion is estimated for Dec 2026, 15 months after the start.
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