The movement that was chosen for the movement analysis paper is baseball swing movement from the initial setup to the follow through after contact with the ball. There will be Four phases that tie in the entire movement analysis. Those 4 phases include the loading phase, timing phase, the launching phase, and the follow through after the swing (Van Such, 2016). Each batter has their own unique stance based on how they plant their feet and hold the bat. However, regardless of their batting style each of the muscles involved in each phase is remains constant. The baseball swing first starts by getting in the proper stance which as mentioned above can vary from player to player. After the feet are positioned in the proper stance the next
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The launching position consists of the following movements: The abduction of the shoulders and the arms, the backward rotation of the spine, the extension of the writs, and the flexion of the hips (Van Such, 2016). For a right handed batter, the left shoulder joint will be adducted toward the body. The right shoulder joint will be flexed with the elbow up in the air and the scapula is abducting. Abduction occurs with the scapula because the scapula is being pulled away from the midline of the body. The shoulders are not being rotated during the loading phase. During the loading phase the shoulders and arms are both being adducted. The primary muscle involved with the adduction of the shoulders and arms are the pectoralis major. The motion is also assisted by the Coracobrachialis, Latissimus …show more content…
The external hip rotators are located in the buttocks region of the body. As the batter rotates away from the pitcher he buts all his weight on his back leg which puts a stretch on the external hip rotators. The names of the external hip flexors being activated are the Gluteus Medias, Superior Gemellus, Inferior Gemellus, Piriformis, Obturator Internes, Obturator Externus and the Quadratus Femoris. The Obturator Internus and Externus are not very big muscles but they can store a large amount of energy. When timed properly the Obturator Muscles can be contracted to carry out a strong rotation during the launching phase of a bat swing (Van Such,
The launching position consists of the following movements: The abduction of the shoulders and the arms, the backward rotation of the spine, the extension of the writs, and the flexion of the hips (Van Such, 2016). For a right handed batter, the left shoulder joint will be adducted toward the body. The right shoulder joint will be flexed with the elbow up in the air and the scapula is abducting. Abduction occurs with the scapula because the scapula is being pulled away from the midline of the body. The shoulders are not being rotated during the loading phase. During the loading phase the shoulders and arms are both being adducted. The primary muscle involved with the adduction of the shoulders and arms are the pectoralis major. The motion is also assisted by the Coracobrachialis, Latissimus …show more content…
The external hip rotators are located in the buttocks region of the body. As the batter rotates away from the pitcher he buts all his weight on his back leg which puts a stretch on the external hip rotators. The names of the external hip flexors being activated are the Gluteus Medias, Superior Gemellus, Inferior Gemellus, Piriformis, Obturator Internes, Obturator Externus and the Quadratus Femoris. The Obturator Internus and Externus are not very big muscles but they can store a large amount of energy. When timed properly the Obturator Muscles can be contracted to carry out a strong rotation during the launching phase of a bat swing (Van Such,