Question

Would you be able to kinematically analyze the entire body during an overhead volleyball hit? Could you provide the phases and within each phase, could you provide the plane of motion, axis of rotation(s), joints involved, joint type, muscle action, and muscle contraction type?

Answer 1

kinmetically analysis of entire body during an overhead volly ball hit.

in the game of volly ball , the overhead pass is very important skill for the passing the ball and it helps to generate the power And also making. Set to attackers.

mottor control is required for the involved sequence of moments.

it is the necessary for the players to control the appropriate distance and direction of the ball.

these factor change depending upon the particular situation in very short time.

overhead pass is just not to grasp and throw of the ball .acooreing to the players average time of the ball contact during this is 71ms.

In full study of full case we can easily analysis the overhead pass and involved muscle activity has the special attention to the SSC ( stretch shorting cycle)

although, the other motion like attacking, jumping and blocking is involved.

We can record the electrodiagram of the elbow jointa and wrist and extensor.

The movement when the ball touched the hand divided in to two phase

1. Pull phase
2. Push phase

This phases with the moment when the ball was at the lowest position.

Muscle is essentially contracted in before the contraction begins ,the muscle can produce greater power than when there is only concentric contraction.

in the pull phase, although the wrist were extended ,the activity of wrist flexor muscle was higher than the extensor muscle in both skilled and unskilled groups.

in the push phase,the activity in the wrist flexor muscle was higher in the skilled participants than that of the unskilled participants.

Thus, the skilled participants pushed the ball by using the SSC of the wrist,

While, the unskilled participants did this in a less degree .

in additional the kinetic chain was observed....

from elbow to wrist in the skilled participants.

we can easily see that if is important for an overhead pass that the wrist flexor muscle accumulate.

elastic energy during pull phase which is then released in the pull phase.