نتایج جستجو برای: dynamic stability

تعداد نتایج: 688430  

2017
Zhong-Qi Liu Feng Yang

Obesity has been related to postural instability during static standing. It remains unknown how obesity influences stability during dynamic movements like gait. The primary aim of this study was to investigate the effects of obesity on dynamic gait stability control in young adults during gait. Forty-four young adults (21 normal-weight and 23 obese) participated in this study. Participants walk...

Objective: With regard to the effects of postural fatigue on the amount of participation in sport activities and as this may result in impaired motor functioning, the aim of this study was to investigate the effect of fatigue on static and dynamic balance in karate kata and kumite elite men. Methods: The statistical population consist of all karate kata and kumite National Karate team members ...

ژورنال: Journal of Railway Research 2017
Khatibi, Fatemeh, Esmaeili, Morteza , Khalilian, Valiollah ,

Construction of railway track embankment over a soft subgrade will bring the necessity of using soil improvement methods for bearing capacity and settlement criteria satisfaction. As a practical improvement method, railway embankment filled with geofoam blocks is studied in this paper. First; a bilinear stress-strain model developed in FLAC2D to simulate geofoam embankment behavioral model. Sec...

مبینی, بهرام, پرنیان پور, محمد, کهریزی, صدیقه, برویس, سها ,

 Background: Changes in load during asymmetric holding may be associated with particularly high risk of loss of balance and spinal injury. Therefore, in order to assess occupational lesions and to make preventive rehabilitation programs in such conditions like holding dynamic loads in asymmetric postures could be important.  Methods:  In a cross-sectional study, COP amplitude and velocit...

Journal: :international journal of mathematical modelling and computations 0
vijaya rekha rekha http://www.annamalaiuniversity.ac.in department of mathematics,annamalai university india assistant professor, department of mathematics, annamalai university.

in this paper, we have proposed a study on controllability and optimal harvestingof a prey predator model and mathematical non linear formation of the equation equilibriumpoint of routh harvest stability analysis. the problem of determining the optimal harvestpolicy is solved by invoking pontryagin0s maximum principle dynamic optimization of theharvest policy is studied by taking the combined h...

Journal: :journal of computational applied mechanics 0
majid sadedel center of advanced systems and technologies (cast), school of mechanical engineering, college of engineering, university of tehran, tehran, iran. aghil yousefikoma center of advanced systems and technologies (cast), school of mechanical engineering, college of engineering, university of tehran, tehran, iran faezeh iranmanesh center of advanced systems and technologies (cast), school of mechanical engineering, college of engineering, university of tehran, tehran, iran.

the main objective of this article is to optimize the walking pattern of a 2d humanoid robot with heel-off and toe-off motions in order to minimize the energy consumption and maximize the stability margin. to this end, at first, a gait planning method is introduced based on the ankle and hip joint position trajectories. then, using these trajectories and the inverse kinematics, the position tra...

Journal: :Journal of Experimental Biology 2005

Journal: :IOP Conference Series: Materials Science and Engineering 2018

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