نتایج جستجو برای: dynamic stability

تعداد نتایج: 688430  

Hassan Saeedi, M. Mohammadi, Mohammad Akbari,

 Abstract Background: Various types of foot orthoses are prescribed for people with flatfoot. It has been reported that orthoses not only improve the biomechanics of the lower limb, but also have good effects on some balance parameters in these subjects. It is hypothesized that the latter effect is dependent on the rigidity of the orthoses. The aim of this study was to evaluate and compare the ...

Ahmad Ahmadi, Yousef Alinezhad Beromi

In this paper, a novel neuro-fuzzy based method combined with a feature selection technique is proposed for online dynamic voltage stability status prediction of power system. This technique uses synchronized phasors measured by phasor measurement units (PMUs) in a wide-area measurement system. In order to minimize the number of neuro-fuzzy inputs, training time and complication of neuro-fuzzy ...

ابراهیمی تکامجانی, اسماعیل, باقری, حسین, صلواتی, مهیار, مبینی, بهرام,

  The purpose of this nonexperimental case-control study was to compare the postural control abilities in normal subjects (n=25) and patients with chronic low back pain (n=25), selected by nonprobability convenient sampling. The Biodex balance system was used to implement dynamic test in four positions including double-leg eyes-open (DEO), double-leg eyes-closed (DEC), single-leg eyes-open (SEO...

Journal: مهندسی دریا 2007
Ali Akbar Golafshani, Mohammad Reza Tabeshpour, Mohammad saied Seif,

However it is possible to use of numerical methods such as beta-Newmark in order to investigate the structural response behavior of the dynamic systems under random sea wave loads but because of necessity to analysis the offshore systems for extensive time to fatigue study it is important to use of simple stable methods for numerical integration. The modified Euler method (MEM) is a simple nume...

Journal: :journal of basic research in medical sciences 0
himan ebrahimi department of sport pathology and corrective exercise, faculty of physical education and sport sciences, university of allameh tabatabai, tehran, iran mehdi shahrokhi department of sport pathology and corrective exercise, faculty of physical education and sport sciences, university of allameh tabatabai, tehran, iran zahra toktam barmar department of physical education and sports science, islamic azad university of mashhad, mashhad, iran ramin balouchi department of physical education and sports science, islamic azad university of mashhad, mashhad, iran

introduction: sensory-motor control and in general gaining balance will be impaired after an ankle injury and in fatigue situations. the aim of this research was to study the effect of exercise-based fatigue on static and dynamic balance in mountaineering athletes who were successful in returning to a suitable level of physical activity after an ankle sprain injury. materials and methods: 25 ac...

Objective: Since direct foot kick is one of the most important strikes in Jeet Kune Do, its effectiveness depends on both the force of the hit and balance control during and after the hit execution, this study undertaken to examine the effect and persistence of eight-week of core stability training on balance and force of a direct foot kick of elite young male Jeet Kune Do (Wushu) athletes. Me...

ژورنال: مجله دندانپزشکی 2011
زندی, ابوطالب, عاطفی, احسان, ملاک زاده, محمدرضا,

Background and Aims: Relative displacement of the implant with respect to bone and quality of bone-implant contact play critical roles in the dental implant stability. The goal of this study was to investigate the dental implant stability using non-linear finite elements method. Therefore, bone-implant relative displacement due to applied force to the implant was calculated, and then an appropr...

Ahmadi, Aezam , Alavi, Seyyedeh Fatemeh , Golmoradi Marani, Maryam , Khalegi, Mahdi ,

Objective: This study aims to assess the effect of 12 weeks of core stability exercises on functional movement and balance of women working in hospitals. Methods: Participants were 34 women aged 30-50 years working in Imam Khomeini Hospital in Tehran, Iran. They were randomly divided into two groups of exercise and control. The exercise group performed core stability exercises for 12 weeks. Th...

Fallah Mohammadi , Mohammad , Sobhani , Vahid ,

Background: One of the problems encountered by active population, especially military personnel, is high incidence of musculoskeletal injuries leading to lose work time and high expenses. These injuries occur due to so many reasons, some of which are considered to be modifiable. The aim of the present study was to investigate correlation between some anthropometrical characteristics, core muscl...

Journal: :caspian journal of neurological sciences 0
razieh farid msc student, faculty of physical education, university of guilan, rasht, iran ; [email protected] ali-asghar norasteh hamidreza hatamian

background: multiple sclerosis (ms) is a chronic disease characterized by degradation of the central nervous system myelin which may impair the balance of patients. core stability exercises have been the focus of attention for repairing the stability of some patients.   objectives: to assess the effect of core stability exercise on the balance of patients with multiple sclerosis. materials and ...

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