Alcantara, Joel, et al. "The use of the patient reported outcomes measurement information system and the RAND VSQ9 to measure the quality of life and visit-specific satisfaction of pregnant patients under chiropractic care utilizing the webster technique." The Journal of Alternative and Complementary Medicine 24.1 (2018): 90-98.

“According to the Centers for Disease Control and Prevention, the general fertility rate for the United States in 2013 was 62.5 births per 1000 women aged 15–44 years based on 3,932,181 registered births. During pregnancy, the expectant mother is faced with many physiologic and biomechanical changes that affect her emotional, physical, and mental well-being.”

“This study adds to the growing evidence that suggests that chiropractic care may play a role in QoL and overall wellness, beyond MSK conditions. There is strong theoretical reason to believe that spinal adjustments and correction of vertebral subluxation improve nerve system function and therefore a function of the person as a whole. By relieving physical distress and restoring the body’s natural way of functioning, chiropractic may play a key role in the improvement of QoL.”

“Since chiropractic’s inception, the care of pregnant women has been an integral part of the practice of chiropractic.32 A popular approach to pregnancy care has been the use of the Webster Technique.16 The technique involves a specific chiropractic analysis and the application of a chiropractic adjustment along with soft-tissue work. The goal with this approach is to reduce the consequences of sacral subluxation and improve the functional integrity of the pelvic bowl with a growing fetus.”

“Since chiropractic’s inception, the care of pregnant women has been an integral part of the practice of chiropractic. A popular approach to pregnancy care has been the use of the Webster Technique. The technique involves a specific chiropractic analysis and the application of a chiropractic adjustment along with soft-tissue work. The goal with this approach is to reduce the consequences of sacral subluxation and improve the functional integrity of the pelvic bowl with a growing fetus.”

Jeanne Ohm, D. C., and D. C. Joel Alcantara. "The Webster Technique: Definition, Application and Implications."

Further studies of Webster Technique can be found on their website.