نتایج جستجو برای: dynamic stability
تعداد نتایج: 688430 فیلتر نتایج به سال:
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 ...
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 ...
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...
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...
the impact of fatigue on balancing in creating re-injuries in mountaineers with chronic ankle sprain
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...
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...
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...
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...
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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