Researchers at the University of Tokyo have created a single-step process to print conductive material on cloth, allowing manufacturers to build stretchable wearables that can test vital signs like heart rate and muscle contraction.
From the release:
Why is this important? Because it allows for the traces to and from electronic components to be amazingly stretchy. While components like chips and transistors are still hard to pull and bend, by allowing the connectors to bend and stretch in certain places you can create a tighter fit for measurement technologies and even bring connectors up close to your skin. The technology isn’t quite ready for prime time but it should be an interesting addition to the wearables world when it’s commercialized.