This little device could one day replace heart rate monitors.
The researchers behind it claim that it s the first flexible wearable device able to measure both electrical heart signals and biochemical markers while you work out.
Developed by a team from the University of California San Diego, the device is able to record an electrocardiogram of your heart s activity and levels of lactate, a chemical that correlates with physical exertion, at the same time.
The circuitry is printed on to a thin and flexible polyester sheet, with a small on-board chip used to beam the data to a nearby device using Bluetooth.
The team explains in Nature Communications that the biggest difficulty with creating such a device is ensuring that the signals being acquired don t interfere with each other.
Now, the team is going to investigate if the same device can be used to measure other vital signs.