One of the most common metabolic disorders is diabetes. Various factors such as life style, nutrition are effect on rapid prevalence. Currently, more than 7 million people have diabetes in Iran. Until 2035, world diabetes prevalence expects to reach 592 million. Diabetes associated with functional alteration (neuropathy, decreased range of motion joints, vasculopathy) and structural alteration (foot deformities, skin changes, and muscle atrophy) in the foot. Gait strategy in diabetes patient is conservative. This means that the speed of gait was reduced, width of the base of support was increased, and support phase time and stride time were prolonged. Horizontal and vertical reaction forces of the diabetic patients were less and more than that healthy subject respectively. Aim of this study is the evaluation of reaction force, moment, and muscle activity on the lower limb during in females' diabetic and healthy subjects. After careful examination, we will choose 45 females with same demographic characteristic. We are going to use four VICON cameras (200 Hz), two Kistler force plates (1000 Hz), and BTS Free EMG 300 at same time. We will use special software for extracting date. Finally, results will have analyzed with SPSS software.