One of the dilemmas for many clinicians new to pelvic rehab is trying to figure out which equipment to purchase, and how to convince their employer (or themselves) to purchase the equipment. A common question in relation to equipment for pelvic rehabilitation is “what do I really need?” In a perfect world, and based on both existing and emerging research as well as clinical practice recommendations, we would all have access to pressure biofeedback and real-time ultrasound to help us document and train our patients in best strategies. The truth, however, lies in the fact that when those devices are not available, clinical practice can gain meaningful information from our best tools: our eyes and our hands. Certainly when completing research about pelvic floor generated pressures we might choose pressure biofeedback, and when looking for muscle activation patterns, needle EMG is the right choice, but no one should deny patients the opportunity to learn how to increase or decrease muscle activity, focus on movement retraining, and learn strategies to decrease improve quality of life and function because the latest technology is unavailable.
Recent research published in the Brazilian Journal of Physical Therapy helps affirm the value of vaginal palpation in an article that assessed the relationship between vaginal palpation, vaginal squeeze pressure, electromyography and ultrasound. Eighty women between the ages of 18 and 35 years old, who had never given birth, and who had no known pelvic floor dysfunction were given a thorough evaluation using a multitude of evaluative methods. These methods included vaginal digital palpation (using Modified Oxford scale), vaginal squeeze pressure, electromyographic activity, diameter of the bulbocavernosus muscles as well as bladder neck movement using transperineal ultrasound. The muscles were assessed in a supine, hooklying position. A strong and positive correlation was found between pelvic floor muscle function and pelvic floor muscle contraction pressure. A less strong correlation was found between pelvic muscle function and pressure and electromyography and ultrasound.
Vaginal pelvic muscle assessment via palpation has been shown to be more accurate when assessed by more experienced therapists, and use of multiple methods may be most valuable in gaining the most accurate data. In addition to validating the usefulness of pelvic muscle palpation as an evaluative tool, the authors point out that transperineal ultrasound may also be the most appropriate tool for pediatric patients or patients who are otherwise not appropriate for internal pelvic muscle assessment.
Pereira, V. S., Hirakawa, H. S., Oliveira, A. B., & Driusso, P. (2014). Relationship among vaginal palpation, vaginal squeeze pressure, electromyographic and ultrasonographic variables of female pelvic floor muscles. Brazilian journal of physical therapy, 18(5), 428-434.
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