Minimal criteria to be defined as an active athlete (all of them should be fulfilled): • to be training in sports aiming to improve his/her performance/results • to be actively participating in sport competitions; • to be formally registered in a local, regional or national sport federation; • to have sport training and competition as his/her major activity (way of living) or focus of personal interest, devoting several hours in all or most of the days for these activities, exceeding the time allocated to other types of professional or leisure activities
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