How does biofeedback work?

How does biofeedback work?

Marc Darrow (Physical Medicine and Rehabilitation, Joint Rehabilitation Sports Medical Center, Inc. ) gives expert video advice on: What is "biofeedback"?; How does biofeedback work?

The way it works is very simple. We hook electrodes onto different muscle fibres, different muscle groups, and we attach those electrodes to some feedback mechanism. It can be sound, it can be light that actually shows us; allows us to see how those muscles are actually contracting or relaxing. When we watch that, we can actually learn how to control our muscles better.