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Related Experiment Videos

Perineal neuromuscular fatigue.

X Deffieux1, K Hubeaux, M Damphousse

  • 1Laboratoire d'Urodynamique et d'Explorations Neurophysiologiques du Périnée, Service de Rééducation Neurologique, Hôpital Rothschild, APHP, 75012 Paris, France. x.deffieux@free.fr

Annales De Readaptation Et De Medecine Physique : Revue Scientifique De La Societe Francaise De Reeducation Fonctionnelle De Readaptation Et De Medecine Physique
|May 16, 2006
PubMed
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Perineal muscle fatigue may contribute to stress urinary incontinence in women. Increased fatigue in pelvic floor muscles could be a factor in the development of this condition.

Area of Science:

  • Urology
  • Physiology
  • Neuromuscular Science

Background:

  • Urinary continence relies on complex passive and active mechanisms.
  • Stress-induced urinary incontinence involves urethral rhabdomyosphincter and pelvic floor muscle contractions.
  • Neuromuscular fatigue can affect striated muscles, including those involved in continence.

Purpose of the Study:

  • To review studies on perineal muscular fatigue in women with urinary incontinence.
  • To explore the role of fatigue in the pathophysiology of stress urinary incontinence.

Main Methods:

  • Systematic literature review using Medline, Pascal, and Embase databases.
  • Keywords included fatigue, stress, urinary incontinence, pelvic floor, urethra, urethral pressure, and muscle.

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Main Results:

  • Animal models indicate pelvic muscles fatigue more readily than other skeletal muscles.
  • Despite the urethral sphincter's fatigue resistance, repeated coughing may decrease urethral pressure in women with stress urinary incontinence.
  • This suggests a potential role for "urethral fatigue".

Conclusions:

  • Perineal muscular fatigue, particularly in pelvic floor muscles, may contribute to stress urinary incontinence.
  • Further research is needed to fully elucidate the role of perineal muscle fatigue in urinary incontinence.