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Effect of 4 weeks of whole-body vibration training in treating stress urinary incontinence after prostate cancer surgery: a randomised controlled trial
Tantawy SA, Elgohary HMI, Abdelbasset WK, Kamel DM
Physiotherapy 2019 Sep;105(3):338-345
clinical trial
5/10 [Eligibility criteria: Yes; Random allocation: Yes; Concealed allocation: No; Baseline comparability: Yes; Blind subjects: No; Blind therapists: No; Blind assessors: No; Adequate follow-up: Yes; Intention-to-treat analysis: No; Between-group comparisons: Yes; Point estimates and variability: Yes. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed*

BACKGROUND: Stress urinary incontinence is common in men after prostate cancer surgery. Rehabilitative interventions incorporate pelvic floor muscle training, biofeedback, electrical stimulation, lifestyle changes, or a combination of these strategies. However, little is known about the physiological impact of whole-body vibration for stress urinary incontinence after radical prostatectomy. OBJECTIVE: To investigate the effect of whole-body vibration training on stress urinary incontinence after prostate cancer surgery. DESIGN: Randomised controlled trial. SETTING: Tertiary university hospitals. PARTICIPANTS: Sixty-one patients with mild stress urinary incontinence after radical prostatectomy. INTERVENTION: Group 1 included 30 patients who performed pelvic floor muscle training and whole-body vibration training with a frequency and amplitude of 20 Hz/2 mm for the first two sessions and 40 Hz/4 mm for the rest of the intervention. Group 2 included 31 patients who performed pelvic floor muscle training alone. The intervention in both groups was conducted three times per week for 4 weeks. MAIN OUTCOMES: Incontinence Visual Analogue Scale (I-VAS) score, International Consultation on Incontinence Questionnaire-Urinary Incontinence-Short Form (ICIQ-UI-SF) score and 24-hour pad test result. RESULTS: I-VAS score, ICIQ-UI-SF score and 24-hour pad test result showed significant within-group differences at each assessment with the exception of the baseline and post-intervention I-VAS score in group 2. For example, group 1 I-VAS score had a median difference of 3.9 cm (95% confidence interval (CI) -4.0 to -3.8) from baseline to first follow-up, and a median difference of -2.0 cm (95% CI -2.2 to -1.8) at 4-week follow-up. Comparisons between the groups demonstrated significant differences in favour of group 1 after 4 weeks of intervention and at follow-up for all measured parameters. CONCLUSION: Whole-body vibration training is an effective modality for treating patients with stress urinary incontinence after prostatectomy. TRIAL REGISTRATION: ClinicalTrials.gov (NCT03325660).

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