A powered exoskeleton might help astronauts accomplish superhuman tasks in orbit. NASA and the Florida Institute for Human and Machine Cognition (IHMC) of Pensacola, Florida, as well as engineers from Oceaneering Space Systems of Houston, have jointly developed the X1. It’s a 57–pound device that humans can wear over their body to assist or inhibit movement in leg joints.
The inhibition mode allows astronauts to use the device as a space-based exercise machine, supplying resistance against leg movement. However, the same technology can be used in reverse on the ground, potentially helping individuals walk for the first time.
The X1 could also become critical for the human exploration of deep space. The harness reaches to the back and shoulders, while the exoskeleton is worn over the legs. The X1 has 10 degrees of freedom, four motorized joints at the hips and knees, and six passive joints allowing for sidestepping, turning, pointing and flexing. The many joint adjustments allow the X1 to be used in a variety of different ways.
The X1 is currently in the R&D phase, focused on design, evaluation, and improvement of the existing technology. The X1 could replace common crew exercises, which are vital to keeping astronauts healthy in microgravity environments. It also has the ability to measure, record, and stream back data to flight controllers on Earth, allowing doctors to get better feedback on the crew’s exercise regimen.
In the future, X1 could provide a robotic power boost to astronauts as they work on the surface of distant planetary bodies. If coupled with a spacesuit, X1 could provide additional force when needed during surface exploration, improving the ability to walk in a reduced-gravity environment.
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