نتایج جستجو برای: biomechanical

تعداد نتایج: 19789  

شیرزاد, الهام, عزیزیان, سعیده, عنبریان, مهرداد, نقیبی, سید احسان, یوسفی, محمد,

Objective: Despite the importance of identifying people susceptible to sports, there is little documentation and studies related to karate talent identification.The purpose of this study was principal component analysis of anthropometric and biomechanical variables in adolescent elite karateka athletes. Methods: Subjects divided to adolescent elite karateka athletes (n = 19) and non-karateka a...

ژورنال: طب کار 2019

Introduction: Upper limbs are more susceptible to musculoskeletal disorders. The OCRA method is suggested to measure the biomechanical risk of the associated with the manual, repetitive work in upper limbs. Questionnaires can be used to measure the symptoms of diseases and disabilities. The DASH questionnaire is one of these questionnaires that are used to evaluate disability of upper limbs. In...

Journal: :iranian journal of medical physics 0
mehravar rafati ph.d. in medical physics, medical physics dept., tarbiat modares university, tehran, iran manijhe mokhtari dizaji prof., medical physics dept., tarbiat modares university, tehran, iran hojabr saberi associate professor, radiology dept., tehran university of medical sciences, imaging center of imam khomaini hospital, tehran, iran effat soleimani ph.d. student in medical physics, medical physics dept., tarbiat modares university, tehran, iran

introduction: in this study, a computer analysis method based on a block matching algorithm is presented to extract the longitudinal movement of the carotid artery wall using consecutive ultrasonic images. a window (block) is selected as the reference block in the first frame and the most similar block to the reference one is found in the subsequent frames. material and methods: the program was...

ژورنال: بیهوشی و درد 2015

Aim and Background: There is little doubt that patients with low back pain (LBP) use their body differently in comparison with healthy individuals. The purpose of this review was to investigate changes in biomechanical perspective which may be present in athletes with LBP. Methods and Materials: TThe search strategy for this review consisted of an electronic database search of full text in PUBM...

Journal: :journal of current ophthalmology 0
هادی استادی مقدم hadi ostadimoghaddam محمدرضا صداقت mohammad reza sedaghat سیدحسین حسینی یزدی seyyed hosein hoseini yazdi حامد نیازمند hamed niyazmand

purpose : to investigate the correlation between corneal biomechanical properties and tomographic parameters of pentacam methods : corneal biomechanical properties and tomographic results of 36 normal subjects were measured by ocular response analyzer (ora) and pentacam and the correlation between these two measurements were analyzed with pearson correlation test with spss version16. results : ...

Journal: :iranian rehabilitation journal 0
ali ebrahimi department of plastic surgery, faculty of medicine, baqiyatallah university of medical sciences, tehran, iran. alireza kazemi faculty of medicine, shahid beheshti university of medical sciences, tehran, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی بقیه الله (baqiyatallah university of medical sciences) azin ebrahimi faculty of medicine, tehran university of medical sciences, tehran, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences)

encouraging an active lifestyle is an essential part of successful rehabilitation programs, and the link between physical activity and quality of life (qol) is well established among patients with mobility disorders. biomechanical aspects of wheelchair design play an important role in physical activity and social participation of disabled individuals. this review focuses on key biomechanical fe...

Journal: :international journal of advanced design and manufacturing technology 0
ali moazemi goudarzi hossein kheirollahi mohammad fazeli misagh imani

: investigating the mechanical behaviour of a healthy human ankle shows that it can be simulated by a mechanism composed of simple elements such as spring, and actuator. hence, appropriate design of this mechanism can be resulted to an artificial ankle that can help amputees properly. researches show that whatever the biomechanical behaviour of artificial ankle is similar to that of natural ank...

Journal: :American journal of physiology. Heart and circulatory physiology 2008
Ineke Krabbendam Loes C A Jacobs Fred K Lotgering Marc E A Spaanderman

Head-up tilt (HUT) induces a reduction in preload, which is thought to be restored through sympathetic venoconstriction, reducing unstressed volume (V(u)) and venous compliance (VeC). In this study, we assessed venous inflow and outflow responses and their reproducibility and determined the relation with autonomic function during HUT. Eight healthy non-pregnant women were subjected to 20 degree...

Journal: :journal of dentistry, tehran university of medical sciences 0
azam valian assistant professor, department of restorative dentistry, school of dentistry, shahid beheshti university of medical sciences, tehran, iran. elham moravej-salehi assistant professor, department of restorative dentistry, school of dentistry, shahid beheshti university of medical sciences, tehran, iran. allahyar geramy professor, dental research center dentistry research institute, department of orthodontics, tehran university of medical sciences, tehran, iran. elham faramarzi dentist.

controversy exists regarding cavity preparation for restoration of interproximal caries in posterior teeth in terms of preserving the tooth structure and suitable stress distribution. this study aimed to assess the effect of extension and type of class ii cavities and the remaining tooth structure in maxillary premolars restored with composite resin on the biomechanical properties of teeth usin...

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