The purpose of this paper isto design an infrared device to determine the level of jumping, as well as preparing special exercises using a device and added relative weights to develop the spiking skill of volleyball players. The research community was identified with volleyball players under (17) years old in Baghdad, who numbered (18) players, and the players were divided into three groups (control and two experimental), and each group consisted of (5) players, and (3) players were excluded for their participation in the experiment The survey, and thus the total number became (15) players and by (5) players for each group, and after the results were presented, analyzed and discussed, which the researcher reached, it was found that there are moral differences with statistical significance between the three research groups.

special exercises, designed device, added relative weights, spiking skill, volleyball