Participants will be recruited through advertisements in local newspapers and press releases within the Grand-Duchy of Luxembourg during the months of September 2017 to January 2018. The benefits for the participants are strongly highlighted during the recruitment phase, and are as follows: 1) the use of a sports diary developed by the SMRL and called TIPPS (Training and Injury Prevention Platform for Sports, www.tipps.lu) to record all their sporting activities, quantify progress, and keep track of their sport-related injuries, 2) a free pair of running shoes, and 3) a brief report with the results of the biomechanical testing as well as their anthropometric measurements. However participants will be made aware that they will randomly receive one of the 2 study shoe versions to be worn during the observation period for all their running activities.