This master's thesis aims to present the use of three mobile apps, namely My Jump 2, My Sprint and IFT 30-15, which are useful in athletes' physical preparation. They are deemed useful, as they can be applied on the field, have been proven as valid and reliable, as well as cost-efficient, which has facilitated their wide application. The first two apps are based on the theory of analysing the force-velocity curve in vertical or horizontal movement, respectively. Their profiling function is designed to identifying whether an athlete is more predisposed to generating force or velocity, which in turn allows the practitioner to design an effective training intervention to develop strength and speed. Vertical profiling provides information on the required movement capacity that the individual should develop in order to improve the effectiveness of ballistic movements in various directions. It provides information on the level of force and velocity that the athlete's neuromuscular system is able to produce. Horizontal profiling, on the other hand, provides an insight into the specific ability of sprint acceleration, namely by identifying the physical or technical elements that limit an athlete's sprinting ability. The third app, IFT 30-15, is useful to measure running endurance, and given that it takes into account the change of direction ability, short bouts of recovery between intervals of exertion, and the ability to endure running at high speeds, it seems very useful for application in team sports. Based on the results obtained through the IFT 30-15 protocol, we are able to generate endurance profile to inform design of the training process, which is aimed at developing different energy systems through the use of HIT (high intensity training) methods or other methods, respectively.
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