Sport is a broad term which represents all those activities which allow us to keep fit. For many people it is a point of reference, for some other it is a job, for others it offers the opportunity to discharge energies or a way to stay healthy . Over the last year, though, with the pandemic and the lockdown, the perception of this sector has changed. Indeed, during the quarantine period, free time has increased and so has the willingness to train by watching video tutorials or instagram live...