1.  Research purpose

Through a 12-week training intervention on the bouncing quality of the experimental subjects, a more reasonable and effective training method for the volleyball player's bouncing quality was explored to provide a reference for the volleyball player's bouncing quality training.

2.  Significance

Through plyometrics training experiments, an effective method for developing the volleyball player's bouncing quality is revealed, which provides a practical and theoretical basis for enriching and developing the volleyball player's bouncing quality.3 Results

3.  Methods

The main research methods used in this paper are literature methods, questionnaire survey methods, testing methods, mechanobiological measurement methods, and statistical analysis methods

4.  Research results

(1) For one-foot run with one hand, the results in the group before and after the experiment show that the new bounce training method and the traditional special training have a very significant difference (p <0.01); the comparison between the groups after the experiment shows that the new bounce The quality training program was significantly better than the control group (p <0.05).

(2) For the high performance of both hands on both feet, the results in the group before and after the experiment show that the new bounce training method and the traditional special training have a significant improvement (p <0.01); the comparison between the groups after the experiment shows the new bounce quality The training plan was significantly better than the control group (p <0.05).

(3) For the in-situ long jump performance of both feet, before and after the experiment, the results within the group showed that both the new bounce training method and the traditional special training had a significant improvement (p <0.05); the comparison between the groups after the experiment showed that the new bounce quality training The plan was significantly better than the control group (p <0.01).

5.  Conclusions

(1) Bounce quality is extremely important in volleyball sports and is the basis of tactics. Only with good bounce quality can we improve our tactics and achieve better results.

(2) Training experiments show that the training methods adopted by the two groups of samples are effective for the development and improvement of the volleyball player's bouncing quality, but the performance of the experimental group is more significant, indicating that the training methods adopted by the experimental group are more scientific and reasonable.

(3) The significant improvement in the experimental group results from the combination of the selection of training methods and project features and the scientific rationality of training arrangements and load control. Super isometric training methods are more conducive to the development of bouncing qualities.

Keywords: Vietnam Da Nang University of Economics; Volleyball player jumping ability;  Plyometric training:Resistance strength training.