The aim of this study was to evaluate the alterations in eccentric evertor/concentric invertor strength ratio and their importance in the chronically unstable ankle. Eight patients with chronic ankle instability (CAI) and nine healthy individuals participated in this study. Isokinetic concentric and eccentric invertor and evertor muscle strength measurement was carried out at an angular velocit...

In this paper we introduce an approach to increase integration rate of elements in a three level invertor. The approach based on decreasing of dimension of elements of the invertor (diodes and bipolar transistors) due to manufacturing of these elements by diffusion or ion implantation in a heterostructure with specific configuration and optimization of annealing of dopant and radiation defects....

An element of a group acting on a graph is called invertor if it transfers an edge of the graph to its inverse. In this paper, we show that if G is a group acting on a tree X with inversions such that G does not fix any element of X, then an element g of G is invertor if and only if g is not in any vertex stabilizer of G and g2 is in an edge stabilizer of G. Moreover, if H is a finitely generat...

Background It is not known why continuing instability exists after ankle sprain. The most common hypotheses include impairments in proprioception, muscle power or postural control [1] but a relationship has not been established. Therefore, the aim of this study was to investigate the relationship between functional instability and invertor/evertor peak power, accuracy of movement detection and ...

CONTEXT The dominant and nondominant legs respond asymmetrically during landing tasks, and this difference may occur during an inversion perturbation and provide insight into the role of ankle-evertor and -invertor muscle activity. OBJECTIVE To determine if there is a difference in the ratio of evertor to invertor activity between the dominant and nondominant legs and outer-sole conditions wh...

Penggunaan platform IoT dengan kualitas yang tidak sesuai sangat berbahaya karena dapat mengakibatkan delay pengiriman data tinggi dan kesalahan pada sistem monitoring. Banyak kendala ditemukan dalam memilih plaform untuk monitoring, seperti tinggi, error rate besar, terlalu sulit membuat tampilan platform, serta kesulitan mengakses digunakan menimbulkan kesusahan menentukan akan digunakan. Ole...

Systems of ocean current power generation are generally moored deep in the seabed. The mooring system is like ropes. ropes very long and can provide tension but not compression, their dynamic displacement large unstable, which different from traditional structures. To generate high-efficiency generation, it necessary to design a stable system. Maintaining stability small invertor significantly ...

The ankle joint has typically been treated as a universal joint with moments calculated about orthogonal axes and the frontal plane moment generally used to represent the net muscle action about the subtalar joint. However, this joint acts about an oblique axis. The purpose of this study was to examine the differences between joint moments calculated about the orthogonal frontal plane axis and ...

Ankle inversion sprains are the most frequent acute musculoskeletal injuries occurring in physical activity. Interventions that retrain muscle coordination have helped rehabilitate injured ankles, but it is unclear which muscle coordination strategies, if any, can prevent ankle sprains. The purpose of this study was to determine whether coordinated activity of the ankle muscles could prevent ex...