In the domain of space exploration, as in other dangerous environments, strength, endurance, and dexterity are key issues to insure the health of the involved people. Hands are by their very nature one of our primary interfaces to influence and interact with the external world. For these reasons, at the center for Space Humanoid Robotics (SHR) we are studying ways to help cosmonauts overcome the stiffness of the gloves used for extra vehicular activity (EVA) by mean of a lightweight active hand exoskeleton. In this paper we position our work on electromyography (EMG) of the upper limbs as a tool to control a device like the hand exoskeleton. In fact, we are studying EMG signals to extrapolate information about the muscular status of the hands and concurrently we are using the information to support cosmonauts movement.

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