The effect of myofascial therapy on postpartum rectus abdominis separation, low back and leg pain, pelvic floor dysfunction: A systematic review and meta-analysis

Abstract

Background: During pregnancy and postpartum, changes in biomechanics can cause dysfunctions in the myofascial system, such as rectus abdominis diastasis, various types of pain, and pelvic floor dysfunction. These common postpartum problems seriously threaten women's health. Myofascial therapy, as an effective means of improving biomechanics, has no unified understanding of its therapeutic effects on postpartum functional disorders. This study aims to systematically evaluate the rehabilitative effects of myofascial therapy on postpartum rectus abdominis diastasis, low back and leg pain, and pelvic floor dysfunction through a meta-analysis of published randomized controlled trials.

Methods: A systematic literature search of databases in Chinese and English was performed through May 2023. The treatment methods were randomized controlled studies using myofascial therapy in the treatment of rectus abdominis separation, lumbo-leg pain, and pelvic floor dysfunction. The main outcome indicators were abdominal circumference, rectus abdominis separation distance, visual analogue pain score, pelvic floor muscle potential, ability to live daily activities, number of events, and treatment effectiveness.

Results: There were 22 studies, including 2235 patients. The result showed that compared with control group, myofascial therapy demonstrated to reduce abdominal circumference and rectus abdominis separation index, improve lumbar function significantly, and decrease urinary incontinence and pelvic organ prolapse. In the myofascial therapy group, pelvic floor muscle strength was significantly enhanced, anterior/posterior resting potential of pelvic floor muscle was significantly decreased, and pelvic floor muscle potential was enhanced. Compared with the control group, the number of patients with various types of pain and pain scores were significantly reduced after myofascial therapy. When myofascial therapy lasted <4 weeks, pain relief was greater. In the myofascial therapy group, the ability to perform daily activities was significantly improved. An analysis of the effectiveness of the treatment showed that after myofascial therapy, the patient's symptoms improved significantly. There also saw low heterogeneity among all outcomes.

Conclusion: The results suggested that myofascial therapy could effectively reduce rectus abdominis separation, relieve pelvic floor muscle dysfunction, enhance lumbar function, relieve pain, and improve the ability of daily living activities. All the data demonstrated that myofascial therapy had a good therapeutic effect on postpartum dysfunction.