Ankle braces have been suggested to protect ankle joints from a sprain by restricting inversion and improving proprioception. However, the difference in effects between a semi-rigid brace and a soft brace regarding dynamic postural control after landing is not known. The aim of the present study was to compare the effect of soft (SB) and semi-rigid (SRB) ankle braces on static and dynamic postu...

Determining maximum loading margins is an important issue in power system operation, as system operators must take proper preventive actions to avoid stability problem. In this paper, an index based on the identification of critical modes of the system is presented. The proposed index does not need a system model as it is based on actual field measurements. Compared to other existent indices, t...

In this article, the dynamic stability of a mobile manipulator using ZMP compensation is considered. A unified approach for the two subsystem is formulated using redundant scheme. First, to conserve the dynamic stability of the system, we define the performance index for the redundant system using ZMP(Zero Moment Point). This performance index represents the stability of the whole mobile manipu...

abstract background and aim: regard with the importance of balance in daily activities especially in sport activities and understanding the important factor affecting it, the purpose of this study was to compare the role of vision system on dynamic postural stability of young women with men elite athletes. materials and methods: twenty six young women and men elite swimmer were chosen from the ...

The objective of this study was to evaluate the relationship between the anthropometric factors of height, body mass, body mass index and postural balance and to compare the balance indices between genders in the upright standing position, in healthy adult subjects under conditions of instability. Forty individuals were subjected to functional tests of body stability using the Biodex Balance Sy...

A lot of works has been devoted to stability analysis of a stationary point for linear and non-linear systems of stochastic di erential equations. Here we consider the stability of an invariant compact manifold of a non-linear system. To this end we derive a linearized system for orthogonal displacements of a solution from the manifold. We introduce notions of Lyapunov exponents, moment Lyapuno...

-Wheat is the most important crop of many countries including Pakistan. Assessment of Yield stability of wheat in different environments has been an important issue for wheat growers and horticulturists. In present paper yield stability of wheat genotypes is assessed at different research institutions/stations across the country using univariate parametric stability models and interrelationship...