DEVELOPING KNEE FLEXOR AND EXTENSOR STRENGTH IN VOLLEYBALL PLAYERS THROUGH TARGETED EXERCISE
Keywords:
volleyball; knee flexors; knee extensors; quadriceps; hamstrings; resistance training; eccentric exercise; plyometric training; vertical jump; physical conditioning.Abstract
This narrative review examines the role of targeted resistance and plyometric exercise in developing lower-limb strength and supporting volleyball performance, with particular attention to the quadriceps and hamstrings. Jumping, spiking, blocking, rapid movement, and controlled landing require coordinated force production across the lower limbs. The review considers the functional roles of the knee extensors and flexors, the application of resistance and eccentric exercise, and the contribution of plyometric training to jumping performance. It also discusses individualized loading, outcome assessment, and exercise safety. Selected systematic reviews and an experimental study provide the basis for the synthesis. The reviewed literature supports the use of plyometric training to improve vertical jump performance, while resistance exercise provides a means of developing force-producing capacity. An illustrative two-session framework is presented to translate these principles into coaching practice. The framework has not been experimentally validated, and the article reports no original participant data. Future controlled studies should evaluate changes in muscle strength, jump performance, and movement technique across different age groups and competitive levels.
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