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Background and aim: With respect to attachment and mechanical relationship of hamstring and calf muscles, interaction between their function is unavoidable. Inspite of prevalence of hamstring and calf muscles shortness, there is not any statistical data about the relationship of shortness of above-mentioned muscles in Iran. The aim of this study was to verify of this prevalence.

Materials and methods: In this study 3308 healthy girls with age 3-17 years old participated. Length of calf muscles with dorsi flexion angle and hamstring with hip flexion angle (SLR) in both side were measured.

Results: The prevalence of hamstring and calf muscles shortness with together was20% in right and 25% in left side .The Prevalence of hamstring and calf muscles shortness with together in 20 district was greater than 3.The greatest amount was seen in secondary school(31.6%).               

Conclusion:The results indicated that most of subjects who had hamstring shortness, they had also calf muscles shortness, so if there is any shortness in one of them, we shouhd pay attention to shortness of the another.

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Background and Aim: Aphasia is common symptom after acute stroke with a prevalence in earlier studies between 21 - 38% .In Iran unfortunately no investigation has been reported on the prevalence of aphasia .So the main aim of this study was to investigate the frequency of aphasia after stroke at hospitals affiliated to Tehran University of medical sciences (TUMS).

 aterials and Methods: This study is a cross-sectional design and has been done on 30 patients with brain injury who admitted to TUMS hospitals during three months. The Mississippi Aphasia Screening Test (MAST) was used to screening aphasia patients.

Results: The descriptive results indicated, from 22 patients with CVA five cases (22.7%) were aphasic. Mean age of aphasic patients (69.6 years) was more than non-aphasic patients (49.24 years) and of five aphasic patients, three cases (60%) were male and two of them (40%) were female. Also, regarding background diseases, four of five (80%) aphasic patients had history of high blood pressure and diabetes. 

Conclusion: Results of this study was consistent with prevalence of aphasia in last studies. Also results of this study confirmed other studies based on that etiology of lesion, age, and high blood pressure and diabetes history of the patients plays an important role in prevalence of aphasia.