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Back ground and aim: The development of body parts identification is parallel with the development of sensory motor. The proper evaluation of developmental is done in western countries, but they are not designed for different races, therefore we decide to survey about body part identification in Tehran.
Materials and Methods: This study performed on 90 children (46 girls and 44 boys) of 1-4years old in east of Tehran with cross sectional design. The first demographic questionnaire was completed by chief nursery and then the second section of questionnaire which was consisted of self body and doll body parts identification, filled in order to determine the number of parts pointed for obtaining of total grade survey on the children and dolls bodies.
Results: The findings showed that there were significant difference between three group of age (P<0.0001). There was no significant differences between two gender groups (boys and girls) in scores mean of self and doll bodies identification in all age groups (P>0.05). In final there was no significant difference between body identification on self body and doll body (P=0.12).
Conclusion: Children who are unable to point to body parts may be at risk for delays in language, cognition, and body scheme development and should be screened or evaluated further.

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Background and Aim: Neck pain is one of the common diseases (66.7%), which contains different age's groups such as youn. Results of researches indicate prevalence of women neck pain is higher than men, so experiment in neck disease in female is more necessary. The aim of this study is to evaluate changes of postural stability in patient with muscular neck pain. 

Materials & Methods: Twenty patients and fifteen healthy subjects contribute in this study.  Postural sway in quiet standing was assessed in both limb stance (BLS), one limb stance (OLS) of dominant side, on a force platform with open eyes (rigid-open) and standing on a force platform with closed eyes (rigid-closed) and standing on the foam (10.5 cm-thick) with open eyes (foam-open) without shoes. All of above conditions were done with dual task. Mean changes of logarithmic displacement in medial-lateral and for- aft directions were calculated.

 Results: There are significant differences between two groups, especially following dual task, and difficult conditions of OLS and standing on the foam.

 Conclusion: Patients with neck pain have difficultly in postural control that need to attending in treatment and prevention of following damages.