Inclusion Criteria:  As inclusion criteria, women participating in the group of pre-surgical preparation for bariatric surgery at the Hospital de Clínicas da Unicamp [Unicamp Clinics Hospital], presenting obesity degrees II and III, who had weight loss of at least 10% of the initial weight with indication for bariatric surgery.  Exclusion Criteria:  As exclusion criteria, women presenting diabetes mellitus, with skin lesions such as dermatitis and dermatosis, with a history of deep venous thrombosis, smokers, or who had electronic implanted devices such as cardiac pacemakers were ineligible.