The Four Phases That Contribute To A Vertical Jump

The volleyball spike is a process in which the athlete uses their lower extremities to generate ground reaction forces that lead to a vertical jump. The trunk and core are used to maintain balance and stability of the body while the athlete is in mid air. The upper extremities are then used to make initial contact with the ball, ultimately sending it over the net onto the other side of the court. There are approximately four phases to a volleyball spike: The run up/attack phase, the take off phase, the airborne phase, and the follow through/landing phase. The airborne phase is broken down into three separate phases of it’s own: the backswing phase, the forward swing phase, and the impact/contact phase.
This specific movement pattern uses
The left shoulder drops and allows for full force to be generated. The left shoulder’s agonist muscles are concentric and the antagonist muscles are coactivation. The left elbow is still flexed. The agonist muscles are therefor concentric and the antagonist muscles are coactivaiton. The left wrist is not seen again but should still be in line with the arm. This would mean the agonist muscles are coactivation and the antagonist muscles are concentric. The right arm’s shoulder is now fully extended. The antagonist muscles are concentric and the agonist muscles are stabilizing the arm in coactivation. The right elbow is also fully extended now. The agonist muscles are concentric while the antagonist muscles are coactivation. The right wrist antagonist muscles are concentric as the hand impacts the ball. The agonist muscles help support the wrist joint and keep it straight so the most force can be transferred to the ball leaving the agonist muscles in coactivation. The final phase of the volleyball spike is the follow through and landing phase. It is very important that this phase is done correctly to prevent injury. The athlete should be landing on both feet at the same time during the landing. This being said, the muscular action of the right and left leg will be the
It is important with the elbow to promote flexibility, endurance, and strength to help prevent injury (Magra & Maffulli, 2005). One of the most common injuries from a volleyball spike is a shoulder injury. This normally is a result of overuse and fatigue. When an athlete is fatigued or muscles are overused they lose proper form. Injury occurs when the fatigue changes the form enough to result in a dangerous motion for the athlete. The best treatment for shoulder injuries is non-operative therapy. This means the athlete does not play or use the shoulder for a certain amount of time. No athlete enjoys this (Dahm & Smith,