【25】科技:Developments in Exoskeleton Technology Could Help Some..

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SCIENCE & TECHNOLOGY

Developments in Exoskeleton Technology Could Help Some Walk Again

June 12, 2018

Patrick Wensing tests out an Ekso Bionics exoskeleton in his lab at the University of Notre Dame. He and his team are working to make the machines more intuitive. (Photo: Notre Dame)

“For someone who takes a lot of energy to only walk a few feet, exo can get them up, can get them moving,” Bularzik said. She added that it can improve a person’s movements, and lets the person plan those movements.

Besides speeding up recovery times, these robotic skeletons are especially helpful for those suffering from paralysis, from spinal cord injuries or strokes. Using the machine can help some patients rewire their brains to use secondary muscles, so they can eventually walk again - without the device.

The downside

American scientists are leading the way with their work on wearable robots that help patients regain some or all of their movement. Patrick Wensing is an assistant professor of mechanical engineering at the University of Notre Dame in Indiana. He notes that exoskeletons have one major problem.

“While existing exoskeletons are very powerful, they don’t understand what the user wants to do,” Wensing said. He added that the user has to give the exoskeleton directions.

Wensing and his team are working with Ekso Bionics, the developer of wearable robots. Their goal is to build a simpler system. They hope to create a machine that can understand what its user wants to do without implanted sensors and complex controls.

The National Science Foundation’s robotic program is providing support for the three-year project.

Taylor Gambon has spent the past year examining information from exoskeleton users and comparing it to models of everyday walking.

“What we’re seeing is that slow walking in general, whether in the exoskeleton or just the human, is much different from walking at a (normal) speed,” Gambon said.

Later this year, the team will travel to Ekso Bionics' headquarters, where they will work with exoskeletons to design programs for users with many disabilities.

I’m Susan Shand.

Erika Celeste reported this story for VOA Learning English.com. Susan Shand adapted her report. The editor was George Grow.

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Words in This Story

paralyze – v. to make someone unable to move or feel all or part of the body

therapy – n. the treatment of physical or mental conditions

exoskeleton – n. a hard outer cover that supports and protects the body of an invertebrate animal such as an insect or a device that helps a paralyzed human

athlete – n. a person who is trained in or good at sports, games, or exercises that require physical skill and strength

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