Sensor sweat will replace fitness wristbands

Photo: J. Rogers/ Northwestern University

Researchers from northwestern University (Northwestern University, USA) has developed a new device that can monitor the health of media is better than it is doing now, for example, the fitness bracelets. A small product that sticks to the skin like a band-aid, analyzes the chemical composition of sweat. According to John Rogers (John A. Rogers), lead author of the study, the composition can tell a lot about the health of the winner of the pot. The functionality of the device is much more than counting calories, activity and heart rate.

Sensor-sticker works as follows: before training it is necessary to attach to the skin, and then just start moving. The product will collect samples of sweat and guide them to different sections, where with the help of certain chemical reactions will gather information about how much moisture the body loses, what is its acidity, which concentrations in the samples contained glucose, chlorides and lactates. Depending on the results on the surface of the device will be displayed in a different color combination, which can be read with a smartphone. For example, certain combinations of colors will show that it is necessary to pause and take a few SIPS of water, because the body has lost too much of its quantity.

Stickers are already tested in practice — more than 2 dozen volunteers put them before workouts in the audience (9 people) and before long-term Cycling in the open countryside (12). People from the first group who exercised on a stationary bike, periodically pressed the wet fingers to the special pads, which are then sent for analysis to the laboratory. Then the result of these analyses compared with the sensor-stickers — and discrepancies were found. The second group tested the reliability of sensors and other devices also rose to the occasion, after all the time of the race.

John Rogers said that the sensor can be used not only for fitness, but also to observe with it, for example, how people cope with military stresses, and to monitor patients with diabetes and cystic fibrosis. Now the device is designed for single use and effect within a few hours, but in the future, scientists plan to create a variant that can be used multiple times.

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