Effect of eight weeks plyometric training with and without blood flow restriction on three-step height jump, agility and anaerobic power in female volleyball players

Mostafa khani¹ Javad Vakili² seyyede Somayyeh Yousefi³

1) PhD in Sports Physiology
2) PhD in Sports Physiology
3) Master of Sports Physiology

IOI Code : XEBG-GKBFH
Publication : Demo - Website of Saman Conference Management System(umaphysiology.ir)
Abstract :
    Introduction: Volleyball is an exciting and fun sport that has a special place among other sports and has many fans all over the world as well as Iran. Also, volleyball is a discipline in which all three types of energy systems are involved and It is also a sport in which the factors of jumping, agility and anaerobic power are considered as the main factors. One of the ways that is used to increase the physical fitness of the mentioned factors is the use of new exercises. The exercises that are considered by athletes today are exercises with limited blood flow. Restriction of blood flow has become common among athletes and is becoming more widespread day by day, but in addition to restricting blood flow, the use of plyometric exercises is one of the methods discussed in the research. The effect of ply exercises with limited blood flow is very small, so the aim of this study was to determine the effect of eight weeks of plyometric exercises with and without blood flow restrictions on three-step jump height, agility and anaerobic power of female volleyball players. Methodology: In a quasi-experimental study, 28 female volleyball players in the age range of 16 to 20 years with at least one year of volleyball sports experience were the statistical sample of this study and after being selected with full knowledge of the research objectives and obtaining consent, Randomly selected and randomly assigned form in one of four groups: 1- Specialized volleyball training 2- Plyometric training with limited blood flow 3- Plyometric training without flow limitation 4- Low intensity plyometric training (experimental groups) Were divided. For 8 weeks and 2 consecutive sessions per week, they performed a plyometric training program. Two days before and after the training protocols, pre-test and post-test were taken. Tests including three-step jump, t-test for agility and rast test for anaerobic power were used. Results: Eight weeks of plyometric training with and without blood flow restriction has a significant effect on the agility performance of female volleyball players. (p <0.05) Also, eight weeks of plyometric training with and without blood flow restriction has a significant effect on the performance of anaerobic peak power of female volleyball players (p <0.05). In a way that increased the power of anaerobic peak in female volleyball players, also training interventions caused a significant change in the height of the three-step jump compared to the control group (p <0.05). Conclusion: According to the obtained results, it seems that restricting blood flow with plyometric exercises has a greater effect on improving athletic performance compared to normal and plow exercises without restricting blood flow

Keywords : kywords plyometric blood flow restraction three step jump anaerobic power