The present invention relates to variable low/zero gravity simulation systems. variable low/zero gravity condition is achieved by substantial immersion in a fluid environment (“buoyancy means”) and using power assist means/robotic displacement devices such as exoskeleton to help user’s movement/gravity compensation and/or relief or change loads on the subject’s torso and limbs that caused by the weight and shape of the “Buoyancy means”, so that user can experience the effect of the (variable) gravity environment being simulated, such as Zero gravity in which situation user could move effortlessly in a weightless environment. When combine with VR related technology, this can create vivid immersive simulations for extraterrestrial scenes and can be widely used for entertainment, game, training, healing and etc.

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Forearm rotation mechanism and orthosis including such mechanism.

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Помню, был, по-моему, в 1991 году номер журнала «Юный техник», в котором была огромная статья про солдата будущего. Будущего достаточно недалёкого — мы его уже лет на десять пережили. У этого самого солдата не было лазерного бластера, зато он мог нести тяжёлое вооружение — ведь в его костюме скрывался экзоскелет, его форма могла, подобно коже хамелеона, приспосабливаться к окружающей обстановке, а на глазах были очки, на которые проецировалось то, что сейчас бы назвали «дополненной реальностью».

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A portable, easily body-mounted, light-weight hinged brace to build muscle groups by adding adjustable resistance at the joint.

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A common feature in biological neuromuscular systems is the redundancy in joint actuation. Understanding how these redundancies are resolved in typical joint movements has been a long-standing problem in biomechanics, neuroscience and prosthetics. Many empirical studies have uncovered neural, mechanical and energetic aspects of how humans resolve these degrees of freedom to actuate leg joints for common tasks like walking. However, a unifying theoretical framework that explains the many independent empirical observations and predicts individual muscle and tendon contributions to joint actuation is yet to be established. Here we develop a computational framework to address how the ankle joint actuation problem is resolved by the neuromuscular system in walking. Our framework is founded upon the proposal that a consideration of both neural control and leg muscle-tendon morphology is critical to obtain predictive, mechanistic insight into individual muscle and tendon contributions to joint actua-tion. We examine kinetic, kinematic and electromyographic data from healthy walking subjects to find that human leg muscle-tendon morphology and neural activations enable a metabolically optimal realization of biological ankle mechanics in walking. This optimal realization corresponds to independent empirical observations of operation and performance of the soleus and gastrocnemius muscles, gives rise to an efficient load-sharing amongst ankle muscle-tendon units and causes soleus and gastrocnemius muscle fibers to take on distinct mechanical roles of force generation and power production at the end of stance phase in walking. The framework outlined here suggests that the dynamical interplay between leg structure and neural control may be key to the high walking economy of humans, and has implications as a means to obtain insight into empirically inaccessible features of individual muscle and tendons in biomechanical tasks.

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