If you run five to six times a week, go to work by bike and do strength training in between your running days, you don't want to spend more time than absolutely necessary at the PC writing all the stuff down. At the same time, it is important to see and calculate progress (or plateauing). I got the RS300 Polar heart rate monitor to keep track of the kilometers I ran and to see … [Weiterlesen...] Infos zum Plugin My Polar heart rate monitor – Why you should have one