Volley-ball Serve Bioanalysis Oscar Rogers
Intro:
The game of volleyball is started with a shot called the ‘spike serve’, or better known as the ‘jump serve’, which is an exciting and energetic skill that is captivating for players and spectators alike. This serve can determine the game and the way it is played as it is a vital part of the team’s strategy. The player starts about five to six meters behind the end line of the court, where they perform a fast run up, a dynamic spike takeoff, and follow through with the spiking action at the peak of their jump that sends the ball across the net. Depending on what action is preformed the ball is able to gain certain spins and act in different ways depending on the situation at hand. The use of …show more content…
The rear leg will extend first, as the body is still moving forward over this leg at takeoff. This leg will also reach full extension prior to the other leg, this means that it will contribute more force to the jump than the other as the bioanalysis will show. As well as the legs extending and muscles and joints flexing the torso will also extent to maximize the force able to be produced by the takeoff. According to () “The timing of the joint movements during the takeoff consists of shoulder flexion, trunk extension, and hip and knee extension, with the final movement to increase jump height being ankle plantarflexion.”. This is used so that the maximum jump height and speed is …show more content…
From a professional stance the primary hitting arm will extend behind the athlete to build up momentum. The backwards movement of the hitting arm is done whilst the trunk is rotated away from the net and into a hitting position. Whist doing the torso rotation the hips are flexed forward leveraging toque into the backswing ready to unload in the follow-through. The flexion of the shoulder, torso and hips provides an important contribution of force when hitting the ball with the forearm controlling spin and direction with the finish. The ball is contacted with a cupped, relaxed hand just as the elbow completes its extension. The wrist is then flexing and the hand is rotated to a pronation position. The important factor when using a jump serve is that the faster the ball is contacted the faster the balls velocity will be. If hand traveled at 13.6 m.s prior to contact, while the ball left the hand at 19.7 m.s (Tant, Greene et al. 1993). Comparing this to my jump phase can show major imperfections with the first being that there was no arm swing and there is no control in the jump, this may be compounded from the run up phase. In order to improve this a new excitation on the run up needs to be performed and to gain the control and stability my arms need to swing into position within the takeoff and also after my feet have left the ground. Also the hitting arm is sitting to low and
Intro:
The game of volleyball is started with a shot called the ‘spike serve’, or better known as the ‘jump serve’, which is an exciting and energetic skill that is captivating for players and spectators alike. This serve can determine the game and the way it is played as it is a vital part of the team’s strategy. The player starts about five to six meters behind the end line of the court, where they perform a fast run up, a dynamic spike takeoff, and follow through with the spiking action at the peak of their jump that sends the ball across the net. Depending on what action is preformed the ball is able to gain certain spins and act in different ways depending on the situation at hand. The use of …show more content…
The rear leg will extend first, as the body is still moving forward over this leg at takeoff. This leg will also reach full extension prior to the other leg, this means that it will contribute more force to the jump than the other as the bioanalysis will show. As well as the legs extending and muscles and joints flexing the torso will also extent to maximize the force able to be produced by the takeoff. According to () “The timing of the joint movements during the takeoff consists of shoulder flexion, trunk extension, and hip and knee extension, with the final movement to increase jump height being ankle plantarflexion.”. This is used so that the maximum jump height and speed is …show more content…
From a professional stance the primary hitting arm will extend behind the athlete to build up momentum. The backwards movement of the hitting arm is done whilst the trunk is rotated away from the net and into a hitting position. Whist doing the torso rotation the hips are flexed forward leveraging toque into the backswing ready to unload in the follow-through. The flexion of the shoulder, torso and hips provides an important contribution of force when hitting the ball with the forearm controlling spin and direction with the finish. The ball is contacted with a cupped, relaxed hand just as the elbow completes its extension. The wrist is then flexing and the hand is rotated to a pronation position. The important factor when using a jump serve is that the faster the ball is contacted the faster the balls velocity will be. If hand traveled at 13.6 m.s prior to contact, while the ball left the hand at 19.7 m.s (Tant, Greene et al. 1993). Comparing this to my jump phase can show major imperfections with the first being that there was no arm swing and there is no control in the jump, this may be compounded from the run up phase. In order to improve this a new excitation on the run up needs to be performed and to gain the control and stability my arms need to swing into position within the takeoff and also after my feet have left the ground. Also the hitting arm is sitting to low and