All subjects were informed about the procedures and signed a written term of free and informed consent that was approved by the ethics committee of the local institution. This cross-sectional study involved three groups: a control group (CG) composed of 20 asymptomatic subjects, a diabetic neuropathy group (DN) of 17 subjects and a diabetic neuropathy group with a history of previous foot ulceration (DNU) composed of 10 subjects