The results of the present study and of those mentioned above confirm the importance of strength training in handball and other similar sports, as well as specific exercises to strengthen and improve the stability of core muscles, since the evidence suggests this is associated with an improvement in factors that influence game performance, such as throwing velocity which, together with accuracy, determines performance efficiency (Gorostiaga et al., 2004). Positive results were observed in junior and amateur senior category players alike, although differences might be found if the subjects under study were topclass professional players.