With dives lasting more than four minutes and reaching depths of more than 100 meters on a single-breath hold, freedivers test the limits of human endurance. Carnegie Mellon University researchers are part of an international team working on wearable biomedical technology that will enhance freediver safety, as well as provide fresh treatment insights for cardiac patients.
The smartwatch-like, wearable device uses light emitting LEDs in contact with the skin to measure heart rate, blood volume and oxygen levels in the brain. It can withstand depths of at least 107 meters.
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