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Background and Objective: Weight bearing position is considered as a functional condition. However, available data about it and also knee position sense is little. This study aimed to compare knee joint position sense in weight bearing and non weight bearing positions in men and women, and to determine the effect of target angle on knee joint position sense. Materials and Methods: This interventional study was performed in Zahedan University of medical sciences, Zahedan, Iran in 2006. Forty-four healthy subjects (22 women, 22 men) participated in this study through simple non-probability sampling. Subjects were asked to flex their knees in prone or in standing position, while their eyes closed. Three target angles (45, 60, 90 degrees of knee flexion) were reproduced by each subject. Angle matching errors were measured using an electrogoniometer. Outcomes were collected in form of relative, absolute and variable errors. Data were analyzed using MANOVA test. Results: There was significant difference between weight bearing and non weight bearing positions in terms of angle matching error (P<0.05), while no significant difference was seen between women and men, and also in three target positions. Conclusion: This study showed that subjects are more capable of recognition and identification of the angles during weight bearing position. A larger amount of proprioceptive afferent data may result from sources other than examined knee and lower extremity.

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Background and Objective: Neuropathy is a diabetic burden which can causes traumedous complications on affected indivitals. This study was done to compare the speed of walking, balance and proprioception of knee and ankle joints between type 2 diabetes and healthy subjects. Materials and Methods: This case – contorl study was carried out on 22 diabetic and 22 healthy subjects in Shiraz, Iran during 2010. Speed of walking, repositioning of some angles in knee and ankle joints and balance time (Tandem position) were measured for all subjects. Sensory neuropathy tested using neuropathy total symptom score-6 (NTSS-6). Results: There is no significant difference between two groups due to speed of walking, but mean time of balance in diabetic patients (32.01±38.03) was significantly less than healthy subjects (71.18±65.15). The average error in repositioning of joint angles in diabetic patients was more than healthy subjects (P<0.05). Conclusion: Balance time and walking speed is lower in diabetic patients which can be due to neuropathy.