快速伸缩复合训练与排球运动员下肢专项素质的关联探究

Objective  To explore the impact of rapid stretching compound training on the specialized qualities of volleyball players so as to provide scientific methods for volleyball training.Methods  This study randomly selected 30 volleyball players and divided them into experimental group and control group using a random array method, with 15 players in each group. They received 8 weeks of rapid stretching compound training (including 30-40 cm box jumping depth and 50-60 cm box jumping) and traditional resistance training (including barbell squats, bench presses, and hard pulls). Before and after training, the jumping ability of the athletes was tested by using standing long jump and vertical jump to touch height, and their mobility was evaluated by using 30 m acceleration run and cross directional run. We measured their rapid directional change ability through Nebraska testing and Illinois testing. We also tested their ability to change movements with 15 seconds of standing and lying support, drilling and jumping over the fence, and repeated horizontal steps in 15 seconds. The cross quadrant jump, hexagonal jump, and hexagonal ball grabbing were used to test the players' coordination and control ability. We compared and analyzed the test results of lower limb explosive power (jumping ability and movement ability) and agility (rapid direction change ability, movement change ability, coordination and control ability) of two groups of athletes before and after the experiment.Results  There was no significant difference in various indicators between the two groups before training (P>0.05). After training, the experimental group showed significantly higher improvements in jumping and mobility indicators in terms of lower limb explosive power compared to the control group (P<0.05). In terms of sensitivity, the experimental group performed outstandingly in the Nebraska test, Illinois test, and other tests for rapid change ability (P0.05), and the experimental group had a significant advantage in the 15-second repeated horizontal step test (P<0.01). In the coordination and control ability test, the rapid stretching compound training performed significantly better than traditional resistance training in tests such as cross quadrant jumping, hexagonal jumping, and hexagonal ball grabbing (P<0.05).Conclusion  Rapid stretching compound training has a significant effect in improving the explosive power and agility of volleyball players' lower limbs. Compared with traditional resistance training, rapid stretching compound training has significant advantages in volleyball specific qualities such as vertical jumping, complex directional changes, and coordinated control. This training method has important practical significance for enhancing athletes' lower limb muscle strength and improving their rapid response ability.