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1Restraints constitute the unique and necessary aids for living and working in microgravity conditions in which crewmembers need facilities as support to move around and as restraints while they work. In environments with microgravity, disturbance to the vestibular sense, when it occurs together with conflicting visual and perceptive stimuli, can cause disorientation, vertigo and illusions regarding posture and movement. Therefore, the design of restraints is a critical ingredient of success for crewmembers performance in space during both IVA and EVA activities. Standard restraints and mobility aids are provided on ISS such that all installation, operation, and maintenance can be performed: Foot Restraint, Adjustable Length Tether, Handrails, Adjustable Length Tether and Torso Restraint Assembly. Crewmembers use Standard Foot Restraints and Handrails to improve the movement capacities and the postural stability.