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Analysis of a Line-out Throw.

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Introduction

P.E Homework Scott Williams 21/09/03 Analysis of a Line-out Throw The main sport that I compete in is rugby. I have recently been moved to the position called HOOKER and it is my job to throw the ball into the line-out when my team win one. A line-out throw is the skill that I will be analysing. Throughout this text I will explain how to throw the perfect line-out and what muscles and bones help you achieve this. The Lineout Throw Accuracy: The lineout throw must be accurate in two planes. The ball must leave the throwers hands at the precise speed and angle of release to ensure that it meets the jumper's hands at his/her peak reach, more often than not with a trajectory such that it must clear opposition jumpers on the way. ...read more.

Middle

It may be thrown a short or a long distance, and it may be required to pass over the hands of competing jumpers or travel quickly and directly to the jumper. Whatever the requirements, the thrower must learn to apply the correct propulsive forces at the correct angle. The Movement of the Body Below are two tables to show which bones and muscles are used during a line-out throw. This table shows the movements during the draw-back stages. JOINT BONES INVOLVED MUSCLES INVOLVED MOVEMENT PATTERN Shoulder Scapula Humerus Deltoids Trapezius Latissimus Dorsi Infraspinatus Flexion Elbow Ulna Radius Humerus Biceps Flexion This table shows the movement during the throwing stages. ...read more.

Conclusion

This can be made with the help from your trapezius, deltoids, latissimus dorsi and the infraspinatus * After this you can either take a step and then throw (making sure you do not cross the line) or you can throw from a static stance * The throw itself is made from your pectoralis major contracting (to extend your shoulders again) and the contraction of your triceps (to extend your arms at the elbows). While doing this (at speed to get good distance on the throw), you must let go of the ball at the appropriate time to send the ball to the jumper in the line-out. ...read more.

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