How effective is biofeedback in prenatal lessons for managing pain during labour?
The 4 trials differed greatly in terms of the diversity of the intervention modalities and outcomes measured. Most trials assessed the effects of electromyographic biofeedback in women who were pregnant for the first time. The trials were judged to be at high risk of bias due to the lack of data describing the sources of bias assessed.
Biofeedback is a therapy that aims to train women to recognise body signals, such as heart rate, breathing, muscular tension or temperature and, in consequence, change their body responses with the aid of electronic instruments that give a signal. It has been used as a behavioural therapy for multiple health problems, including pain. For pregnant women, prenatal training usually consists of 8 to 10 regular sessions from one-half to one hour duration and administered 2, 3, or more times per week. These sessions may be during conventional prenatal classes or may involve use by the pregnant woman in private at home.