The electrical and contractile properties of hand muscles in a selected population of quadriplegic subjects were studied intensively before and after EMG biofeedback. Spontaneously active motor units and units that could only be slowly and weakly activated were observed in these subjects, in addition to units that were voluntarily activated normally. This suggests a considerable overlap of surv...

A significant reduction in muscle contraction headache activity was observed in patients trained in the relaxation of the forehead musculature through EMG biofeedback. Training consisted of 16 semiweekly 20 min. EMG feedback sessions augmented by daily home practice. A pseudofeedback control group and a no-treatment control group failed to show significant reductions. A three-month follow-up qu...

Assessed the effects of particular treatment combinations of relaxation training, temperature, and EMG biofeedback on state-trait anxiety, symptom report, and self-concept. The four groups received one of the following sequences: (a) relaxation training, temperature, and EMG biofeedback; (b) temperature, EMG biofeedback, and relaxation; (c) temperature followed by EMG biofeedback; (d) EMG biofe...

This paper reviews the ergonomic and psychosocial factors that affect musculoskeletal disorders at the workstation. First is a model of a physiological assessment protocol that incorporated SEMG monitoring while working at the computer. Next is a study that showed that participants lack awareness of their muscle tension as compared to the actual SEMG levels. The final study illustrated how an i...

background: the rome ii and iii diagnostic criteria for dyssynergic defecation recommended the exclusion of irritable bowel syndrome (ibs). this study determined the effect of biofeedback therapy on dyssynergic constipation in patients with or without  irritable bowel syndrome. materials and methods: this study was a non-randomized, single blinded, semi experimental study. dyssynergic defecatio...

OBJECTIVES Electromyography (EMG) is a common technique used in clinical settings, which utilizes visual biofeedback to correct muscle activation during exercise. However, it unclear whether the correction of by EMG training restores proprioception, dynamic stability, and pain. In addition, our knowledge, no study has investigated acute on proprioception adults with patellofemoral pain.METHODS ...

Biofeedback-related approaches to headache therapy fall into two broad categories: general biofeedback techniques (often augmented by relaxation-based strategies) and methods linked more directly to the pathophysiology underlying headache. The use of general biofeedback-assisted relaxation techniques for headache has been evaluated extensively by expert panels and meta-analyses. Taken together,...

The Association for Applied Psychophysiology and Biofeedback, Inc. (http://www.aapb.org) defines biofeedback as: “the process of gaining greater awareness of many physiological functions primarily using instruments that provide information on those same systems, with a goal of being able to manipulate them at will.” In their website it is further stated that: “Biofeedback is a process that enab...