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NTE is developing a system for neuromuscular research (MARES: Muscular Atrophy Research and Exercise System). This system is an ergometer to be flown and installed in the International Space Station in the year 2004 and is consisting of a motor, an HRS (Human Restraint System) and a control electronics that controls the motor. The subject is connected to the motor by means of the restraining system HRS. This ergometer can be used for 11 movements (wrist flexion/extension, pronation/supination and radial/ulnar deviation, trunk flexion/extension, arm pull/press, leg pull/press, elbow flexion/extension, Shoulder flexion/extension, hip flexion/extension, knee flexion/extension and ankle dorsal/plantar flexion). MARES is a research tool for physiologists, but also interesting for human factors people. It is a tool to quantitatively measure the physical condition of a person before performing a physically demanding task (e.g.

This paper presents the results of the work developed by the Extravehicular Activity (EVA) project team concerning astronauts medical monitoring. This work was done during the definition phases of the European EVA Space Suit project from 1989 to 1992. The structure of the paper, follows the logic of the study already due, fisrt, the physiological parameters to be monitored are selected, then we describe the desing of the medical monitoring system and finally we present the test performed and test results.