The use of mechanical acoustic vibrations to improve abdominal contour.

Adaptive effects caused by mechanical acoustic vibrations on the neuromuscular system are widely described. These vibrations applied to the muscle belly cause the "vibration tonic reflex" characterized by an improvement in power contraction of the stimulated muscle. Mechanical acoustic vibrations of moderate strength placed on limited body areas produce a positive muscle activity without damage. A prospective study from January to September 2006 investigated 60 sedentary patients presenting with muscular hypotrophy associated or not associated with lipodystrophy of the abdominal region who desired a substantial contour improvement of such area without invasive procedures. Of these patients, 40 were subjected to a treatment protocol with mechanical acoustic vibrations applied to the abdomen, associated or not associated with physical aerobic exercise of moderate intensity. The remaining 20 patients engaged only in the physical training. The study aimed to evaluate whether the application of mechanical acoustic vibrations could improve body contour.