A comparative study on effects of strength and plyometric training to improve performance in an open hand volley ball serve and spike

Objective: To improve performance of serve and spike velocity through strength plyometric training. The modern game volleyball requires to play in all positions during match. At times player become a spikier, blocker, attacker, server defender. As consequence is expected work on programme designed strength, agility flexibility. two main techniques which are important spike. A definite degree wrist shoulder muscle required for spiking.Materials Methods: Using randomized sampling experimental study at the college level, 30 students had participated study, has been conducted 6 weeks – 2 sessions/day. Tools used included an Electronic stop watch were measure time ball service spiking, steel tape distance serve, push pull dynamometer strength. Multiple Regression Equation predict spiked with help selected independent variables i.e. size body parts separate regression drawn. resulted equations have presented as follows.X1 = (Arm Strength) + Length) (Leg 36.53 Where X1 Service Velocity ballX2 14.86 X2 Spiking ballOn comparing Mean values Group & B Shoulder Muscle Strength Measurement terms Maximum Isometric Voluntary Contraction (MIVC) Score using Push Pull Dynamometer, it shows significant Increase post test but (Group - Training) higher value Flexors, Abductors, Internal Rotators External more effective than Plyometric p≤0.001. Hence Null Hypothesis rejected. On Vertical Jump Test anaerobic power, both groups increase 50.40 centimeters 45.53 Serve Spike Velocity, 83.74mph 78.55 mph 73.48 83.74 Pre-test Post-test within (MIVC), highly difference p≤0.001.Conclusion: There relationship between namely arm grip leg back length, upper hand length Arm together contributed significantly service. spike.The concludes that training improvement then velocity.