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In baseball, hitting mechanics studies the biomechanical motion that governs the swing of a baseball player. The goal of biomechanics in hitting during baseball training is to study and improve upon the physics involved in hitting. This includes, but not limited to, optimizing a player’s swing for either maximizing their bat speed or time for plate coverage. There is a wide range of batting stances and mechanics that are developed through individual preferences. However, when comparing among experienced baseball players, their batting mechanics approach are almost similar. == Hitting analysis == Hitters have a wide variation of swings, but in the end staying balanced and having stable posture is the most important aspect of hitting a baseball. If the hitter becomes unbalanced throughout the swing the chance of making solid contact with the baseball is very slim. Once balanced throughout the swing, bat speed comes into the next most important aspect of the baseball swing. The faster the bat speed, the faster the ball will come off the bat. Furthermore, researchers have long established that bat speed and home run hits are critically dependent of one another. Most notably, one can logically assume that a faster swing will result in the ball traveling farther. A 3-6% increase in bat speed can significantly affect the distance a ball travels after contact in competition (7). In terms of simple physics and mathematics, the conservation of momentum (E1) and a kinematic equation (E2) also reinforces this idea. *(E1): (Mass1 *Velocity1 = Mass2 *Velocity2) *(E2): (distance = Velocity (initial) *time + 0.5 *acceleration *time^2) A study used an intensive mathematical program (finite element analysis software) to confirm that ball exit velocity is indeed dependent on linear bat velocity. These findings and observations confirm that a faster swing will be beneficial to a baseball player. In a research done by Welsh and et al. for the ''Journal of Orthopaedic and Sport Physical Therapy'', they found that every baseball player goes through three critical phases during their swing. The three phases are foot off, foot down, and ball contact. In addition, they found that maximum hip rotation (around 714 degrees per second) happens right after foot down and maximum bat velocity (around 31 meters per second) before ball contact. These are significant markers since the hips generate the power needed for the bat speed which determines the distance the ball travels. Most biomechanics research hypothesis involving baseball takes those parameters as key values that can determine the success of a hitter. Furthermore, a hitter’s mechanics will also includes an initial short “windup” motion and a final follow through phase that completes the motion. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Hitting mechanics」の詳細全文を読む スポンサード リンク
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