The days are longer and warmer, so we spend more and more time outdoors. After a slightly more lazy winter, it is good to properly prepare for sports activities. If we gradually introduce the body to more intense sports efforts, it will go more smoothly and without injuries. But you don't need an expensive personal trainer for that, because you can now have one at your fingertips. The combination of a smartphone and a smart watch will ensure that the spring will be pleasant and active.
