Modern sports’ training addresses the biological concept in the preparation of athletes. This experimental study consists in identifying opportunities of improvement for the sports training through the use of combined motor qualities strength-velocity. Football and hockey athletes have the ability to accelerate quickly, players must be able to change direction and, in particular, to decrease acceleration rapidly (to decelerate), to turn and immediately accelerate in the opposite direction. The greater the leg strength, the faster the player will execute this movement activity. Consequently, the athlete must do strength training simultaneously with speed training. In this respect it is important to mention that the share of competitive effort in the games of football and hockey is 70 for anaerobic effort to 30 for aerobic effort. Hockey means of training strength are used for football players, and football means for training strength are used for hockey players. These means are chosen and conceived from the experimental research of the two groups of athletes, they focus on the covered distances, weights lifted, jumps, coordination. The methodological basis of the research is supported by the theoretical aspect and the practical experience based on the ideas of sports training. It is in this context that the level of development for the capacity of strength-velocity of the two groups of athletes, 16-17 years of age will be assessed.