Key points from article :
Engineers developed a wearable, stretchy patch that could help people control robotic exoskeletons more efficiently.
The patch, about the size of a BandAid, uses microneedles to pick up signals from human muscles
Similar patches may help people move robotic arms or legs, or even assist doctors in the future.
Microneedles are painless and comfortable to wear, even for long periods.
The patch reduces muscle power needed to use robotic exoskeletons.
Researchers are still testing the patch with different exoskeletons.
Study led by Jae-Woong Jeong from KAIST, anddesign published in the journal Science Advances.