Related Experiment Video
Updated: Feb 5, 2026

Isolation and Characterization of the Murine Uterosacral Ligaments and Pelvic Floor Organs
Published on: March 3, 2023
Efficacy of pelvic floor training with surface electromyography feedback for female stress urinary incontinence
Ying-Ju Liu1,2, Wen-Yih Wu1, Sheng-Mou Hsiao1,3,4
1Department of Obstetrics and Gynecology, Far Eastern Memorial Hospital, New Taipei, Taiwan.
Aims:
The aim of the study is to compare the efficacy of an 8-week pelvic floor muscle training program with surface electromyography feedback, performed in different body positions (supine, sitting, and standing), in women with stress urinary incontinence.
Design:
This is a prospective observational study performed January 2014 to May 2016.
Methods:
The training program was performed by 110 women with stress urinary incontinence, each completing 4 individual training sessions. The main outcome was the electromyography activity of the pelvic floor muscles and of the synergistic abdominal muscles. Outcome measures were evaluated at 4 time points, namely at baseline and at 2, 4, and 8 weeks of training.
Results:
A notable effect of training was identified at week 2, which was sustained through to week 8. Training yielded a significant improvement in increased sustained voluntary contraction of the pelvic floor muscles in all 3 positions. The efficacy of training was influenced by the duration of training, age, body mass index, and history of vaginal delivery.
Conclusion:
Training of the pelvic floor muscles, with positive reinforcement by surface electromyography feedback of the pelvic floor muscles and of the synergistic abdominal muscles, was effective for the treatment of stress urinary incontinence in women and should be considered as a feasible option by healthcare providers.
Related Concept Videos
Muscles of the Pelvic Floor and Perineum
Perineal Layer
The perineum is a diamond-shaped area below the pelvic diaphragm, divided into an anterior urogenital triangle that contains the external genitals and a posterior anal triangle housing the anus. The urogenital...
Feedback Inhibition
Feedback Loops
Effects of feedback
Feedback significantly modifies the gain of a control system. The gain of a system without feedback is altered by a factor of one plus GH, where G represents...
Self-Efficacy
Feedback control systems
Linear feedback systems are theoretical models that simplify analysis and design. These systems operate under the principle that their output is directly proportional to their input within certain ranges. For instance, an amplifier in a control system behaves linearly as long as the input signal remains within a specific range. However, most physical systems exhibit inherent nonlinearity...

