Controlled randomised trial of visual biofeedback versus muscle training without a visual display for intractable...

Area of Science:

• Gastroenterology
• Physical Therapy
• Pelvic Floor Rehabilitation

Background:

• Severe constipation impacts quality of life.
• Current biofeedback methods for constipation training rely on visual or audible signals.
• Pelvic floor muscle coordination is crucial for effective defecation.

Purpose of the Study:

• To compare the effectiveness of pelvic floor muscle training with and without electromyographic (EMG) biofeedback for severe constipation.
• To determine if EMG biofeedback offers additional benefits over standard training.
• To assess the impact of training on pelvic floor muscle activity during defecation.

Main Methods:

• A randomized controlled trial was conducted.
• One group received standard muscular coordination training.
• The other group received the same training supplemented with a visible EMG record.
• Symptomatic improvement and EMG measurements were assessed.

Main Results:

• Both groups showed significant symptomatic improvement.
• EMG measurements confirmed reduced pelvic floor muscle activity during straining post-treatment in both groups.
• No significant difference in outcomes was observed between the biofeedback and non-biofeedback groups.

Conclusions:

• Muscular coordination training for severe constipation is effective without biofeedback devices.
• Personal instruction and encouragement are sufficient for successful treatment.
• This training method is suitable for outpatient use by paramedical personnel.