Muscle biofeedback makes the invisible visiblePosted: January 6, 2012
“I feel much more relaxed and realize now how unaware I was of the unnecessary tension I’ve been holding” is a common response after muscle biofeedback training. Many people experience exhaustion, stiffness, tightness, neck, shoulder and back pain while working long hours at the computer or while exercising. As we get older, we assume that discomforts are the result of aging. You just have to accept it and live with it–grin and bear it–or you need to be more careful while doing your job or performing your hobby. The discomfort in many cases is the result of misuse of your body. Observes what happens when you perform the following experiential practice Threading the needle.
Perform this task so that an observer would think it was real and would not know that you are only simulating threading a needle.
Imagine that you are threading a needle — really imagine it by picturing it in your mind and acting it out. Hold the needle between your left thumb and index finger. Hold the thread between the thumb and index finger of your right hand. Bring the tip of the thread to your mouth and put it between your lips to moisten it and make it into a sharp point. Then attempt to thread the needle, which has a very small eye. The thread is almost as thick as the eye of the needle.
As you are concentrating on threading this imaginary needle, observed what happened? While acting out the imagery, did you raise or tighten your shoulders, stiffen your trunk, clench your teeth, hold your breath or stare at the thread and needle without blinking?
Most people are surprised that they have tightened their shoulders and braced their trunk while threading the needle. Awareness only occurred after their attention was directed to the covert muscle bracing patterns.
In many cases muscles are tense even though the person senses and feels that they are relaxed. This lack of awareness can be resolved with muscle biofeedback–it makes invisible visible. Muscle biofeedback (electromyographic feedback) is used to monitor the muscle activity, teach the person awareness of the previously unperceived muscle tension and learn relax and control it. For more information of the use of muscle biofeedback to improve health and performance at work or in the gym, see the published chapter, I thought I was relaxed: The use of SEMG biofeedback for training awareness and control, by Richard Harvey and Erik Peper. It was published in W. A. Edmonds, & G. Tenenbaum (Eds.). (2012), Case studies in applied psychophysiology: Neurofeedback and biofeedback treatments for advances in human performance. West Sussex, UK: Wiley-Blackwell, 144-159.