Scientists at South Korea’s Chung-Ang University have created an ultra-light exosuit that can help runners cover short distances faster.

They may not be mainstream yet, but exoskeletons have been a part of our world for a while now. We’ve seen some that make carrying heavy loads a breeze, and others that help physically disabled people move around with ease. But wearable technology that helps people run faster has been pretty rare, especially in the super-light form recently presented by scientists at Chung-Ang University’s School of Mechanical Engineering in South Korea. They created a contraption that only weighs around 2.5 kg (5.5lbs) but can help the average person run a 200-meter sprint almost a second faster than without the suit.

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Vimal Govind Manikandan, an engineering student from Kerala, recently made international headlines after building a fully-functional exosuit inspired by Marvel superhero, Ironman.

People have been building their own Ironman suits for years, but while those are all just good-looking replicas, Vimal’s version actually works. The 100-kg-heavy suit doesn’t fly, or shoot energy beams like that of the actual Ironman, but it can move at a decent pace, perform basic actions and even lift up to 150 kg, thanks to battery-powered pressurized air chambers. And it only cost $750 to make.

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