Explain The Major Movements Involved In A Skeletal System

The key bones involved in a rugby tackle vary throughout the whole body. The specific bones used are part of the appendicular skeleton that consist of bones that control the limbs of the body. This boners are specifically located in the uppper-chest/arm area and the leg area. For the upper-chest/arm area, the predominant bones involved include, the scapula, humerus, clavicle, radius and ulna. As for the leg area, the prevalent bones invloved in a rugby tackle include the hip flexor, femur and tibia. clavicle makes initial contact on ball carrier

During the initial contact of a rugby tackle, the tackler’s clavicle should be first to hit the ball carrier’s body. From
Femur, tibia and fibula extend to produce drive on the ball carrier this point
The major movements performed at the joints during the action of a rugby tackle include flexion, extension and abduction. These movements are used in order to generate an effective and powerful tackle. The Hinge joints found within the knee and elbow perform a flexion and extension movement to either shorten or lengthen the angle of the joint whereas the ball and socket joints produce an abduction movement whereby a body part moves away from the anatomical position.

During a rugby tackle, flexion occurs at the elbow. The angle of the elbow shortens in order to hook around the body of the ball carrier. Flexion also occurs at the knee whereby the angle of the leg shortens to lower the height of the tackle. By the tackler lowering his body height, leg extends upwards he/she is able to gain an advantage by aiming for the ball carriers legs. Once the tackler has made contact whilst in a squatted position, they then use extension to finish the tackle. With the legs lengthening their angle, force is
Extension of the legs generate force in the tackle that is transfereed to the ball carrier produced in order to drive the ball
specifically in the hip, the legs widened, away form the midline of the body ensuring an increase in stability and balance of the tackler. This action abduction of the legs in order to increase stability develops prior to contact. This way the tackler can prepare a stable stance in order to with-take maximal force whilst completing a successful tackle against the ball carrier running into contact with the tackler.

Use diagrams and descriptions to explain two key biomechanics concepts and principles necessary for successful performance.

For a successful and effective action of the rugby tackle, biomechanics concepts and principles are necessary to do so. Biomechanic concepts such as Centre of Gravity and Base of Support, are key principles in generating a powerful tackle. The centre of gravity within a person is situated at a point where 3 planes of reference meet. The base of support is the position of the feet onto the ground. These 2 key biomechanic concepts work together to allow stability and balance within a