 This is a doubleblind randomized clinical trial. Both patients and the podiatrist that will evaluate and monitor study patients will be blinded to electrical stimulation application. The manufacturer of the units will be asked to not inform which patient received which unit. Each unit will be coded with a unique identification number, and the manufacturer units revealed their status, placebo or electric stimulation, only at the end of data collection for the last patient. Subsequently, the investigators could match the status of the identification numbers with the corresponding units to start analyzing the data. Patients that receive an activated electrical stimulation unit will receive a standard dose of 50 volts as described above. 