Biofeedback-guided pelvic floor exercise therapy for obstructive defecation: an effective alternative

World J Gastroenterol. 2014 Jul 21;20(27):9162-9. doi: 10.3748/wjg.v20.i27.9162.


Aim: To compare biofeedback-guided pelvic floor exercise therapy (BFT) with the use of oral polyethylene glycol (PEG) for the treatment of obstructive defecation.

Methods: A total of 88 subjects were assigned to treatment with either BFT (n = 44) or oral PEG (n = 44). Constipation symptoms (including difficult evacuation, hard stool, digitation necessity, incomplete emptying sensation, laxative dependence, perianal pain at defecation, and constipation satisfaction), Wexner Scores, and quality of life scores were assessed after 1, 3, and 6 mo.

Results: At the 6 mo follow-up, the symptoms of the BFT group patients showed significantly greater improvements compared with the PEG group regarding difficult evacuation, hard stools, digitation necessity, laxative dependence, perianal pain at defecation, constipation satisfaction, Wexner Constipation Score, and quality of life score (P < 0.05). The quality of life score of the BFT group at the final follow-up time (6 mo) was 80 ± 2.2. After a complete course of training, improvements in the clinical symptoms of the BFT group were markedly improved (P < 0.05), and the Wexner Constipation Scores were greatly decreased compared with the oral PEG group (P < 0.05).

Conclusion: We concluded that manometric biofeedback-guided pelvic floor exercise training is superior to oral polyethylene glycol therapy for obstructive defecation.

Keywords: Biofeedback; Obstructive defecation; Polyethylene glycol.

Publication types

  • Comparative Study
  • Randomized Controlled Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Administration, Oral
  • Biofeedback, Psychology / methods*
  • China
  • Constipation / diagnosis
  • Constipation / physiopathology
  • Constipation / therapy*
  • Defecation / drug effects*
  • Humans
  • Laxatives / administration & dosage*
  • Manometry
  • Middle Aged
  • Patient Satisfaction
  • Pelvic Floor / innervation*
  • Polyethylene Glycols / administration & dosage*
  • Quality of Life
  • Recovery of Function
  • Surveys and Questionnaires
  • Time Factors
  • Treatment Outcome


  • Laxatives
  • Polyethylene Glycols