The company Under Armour has released a "smart" shirt E39 (the letter "E" means – e). The main feature innovations – is a small unit consisting of a processor, accelerometer and 2 GB of storage. Wearing such T-shirt gathers all the necessary information: the frequency of breathing, heartbeat and even the power to accelerate when running.

This information can be transferred via Bluetooth to any device that supports this type of communication. It is very convenient especially for trainers, for them it is a kind of outsourcing, as they collect information, such as a runner, and then process it, they advise on what to look for in the first place: too early to start, not dramatically, or conversely weak watch for breathing, etc.

National Football League (NFL) has already provided many athletes these shirts.

Source: Engadget.com