Running is one of the most popular forms of exercise around, although if you overdo it, you can actually end up in worse shape than when you started.
To solve this problem, the Fraunhofer Institute in Germany, in association with scientists in five European countries, has developed the Runsafer smart running shoe. It uses a bunch of built-in G force, direction, and GPS sensors to determine how hard, how fast, and how long you're running, including information about whether you're on a hard or soft surface, and when you are taking a break.
The shoe transmits this data to your smartphone via Bluetooth, and your phone connects to a central computer that analyzes the information. Based on this, you will get tips sent back to your phone suggesting ways to improve your workout. In addition to things like telling you to slow down or to take a break, it can analyze the way you plant and push off from your feet, or even plan a complete workout routine to achieve your health goals.
That all sounds great, but I think they could expand the options even further. For example, the program could tell you to get up off your ass if you've been sitting on the couch for too long, or chastise you if you peel off to hit the ice cream stand during your run.
The Runsafer smart shoe is still a work in progress, but the Fraunhofer Institute says they hope to see it developed into a product you can buy in 2015.