Here is the design of a clinical trial:

Official Title: Effect of Pelvic Floor Muscle Training on Urinary Incontinence Reports in Obese Women Undergoing a Low Calorie Diet Prior to Bariatric Surgery: an Assessor Blinded Randomized Controlled Trial

Included conditions:
- Urinary Incontinence
- Obesity
- Strength; Pelvic Floor

Study Armgroups:
- {'label': 'Group 1- diet therapy (control)', 'type': 'ACTIVE_COMPARATOR', 'description': 'Control group undergoing a low calorie diet will not receive supervised pelvic floor muscle training. This group will be assessed at baseline and after 12 weeks. For ethics reason at the end of the study women of the control group will be invited to receive the pelvic floor muscle training program. However, this will not be part of the study.', 'interventionNames': ['Other: Pelvic Floor Muscle Training']}
- {'label': 'Grupo 2 - low calorie diet + PFMT (experimental)', 'type': 'EXPERIMENTAL', 'description': 'The experimental group will receive supervised pelvic floor muscle training in addition to a hypocaloric diet. Women will be instructed to perform daily pelvic floor muscle training at home. 4 sets of 10 maximal voluntary pelvic floor contractions sustained for 6 seconds, followed by 5 voluntary contractions of the pelvic floor muscles. The 4 sets will be performed in 2 different positions (sitting and standing). Once a month, they will receive a supervised in-person session using the same protocol described above, in the other weeks of the month will receive a session supervised by telephysiotherapy once a week. In addition to supervised sessions, women will be encouraged to perform the protocol three more days a week. In addition, they will be instructed to perform "the knack" maneuver.', 'interventionNames': ['Other: Pelvic Floor Muscle Training']}

Interventions:
- {'type': 'OTHER', 'name': 'Pelvic Floor Muscle Training', 'description': '4 sets of 10 maximal perceived voluntary pelvic floor contractions sustained for 6 seconds, followed by 5 voluntary pelvic floor muscle contractions. The supervised 4 sets will be performed in 2 different positions (sitting and standing).', 'armGroupLabels': ['Group 1- diet therapy (control)', 'Grupo 2 - low calorie diet + PFMT (experimental)']}

Primary Outcomes:
- {'measure': 'Self report of urinary incontinence by women', 'description': 'Self report of urinary incontinence measured using question 3 of the ICIQ-SF. Women will be considered incontinent if they choose option 1,2,3,4,5 of question 3. Women will be considered continent if they choose option 0 of question 3.', 'timeFrame': 'Women will be evaluated at baseline'}
- {'measure': 'Severity and impact of Urinary incontinence in women´s quality of life', 'description': 'the severity and impact of Urinary incontinence in women´s quality of life will be measured using the ICIQ-SF score', 'timeFrame': 'Women will be evaluated at baseline'}

Please estimate the sample size based on the assumption: 
significance level of 5%, power of 20%
Sample size calculation
        The sample calculation was estimated considering a significance level of 5%, power of 20%, and difference of 4 points on the final score of the primary outcome, ICIQ-SF, between groups at the end of treatment [10]. The value of 4 points is equivalent to the minimum value for change in the questionnaire score. Thus, the sample will be composed of 22 participants.