Coleman A Eugene, Amonette William E
Department of Clinical, Health, and Applied Sciences, Human Performance Laboratory, University of Houston-Clear Lake, Houston, Texas.
J Strength Cond Res. 2015 Jul;29(7):1759-65. doi: 10.1519/JSC.0000000000000731.
The purpose of this article was to compare times to first base in Major League Baseball games to determine whether running velocity decreases to the foul line and first base among players with differing years of playing experience. From 1998 to 2012, 1,185 sprint times to first base were analyzed: 469 outfielders, 601 infielders, and 115 catchers. The players were divided into differing experience categories depending on their years of service in Major League Baseball: 1-5, 6-10, 11-15, and 16-20+ years. Velocity at the foul line and first base was compared and interval accelerations were reported. Comparisons were completed by playing position, and within left- and right-handed batters. Left-handed outfielders exhibited reduced velocities at 6-10 (p = 0.04), 11-15 (p = 0.004), and 16-20 years (p < 0.001) compared with 1-5 years; there were no statistical differences in velocity at the foul line. Right-handed outfielders exhibited significantly reduced velocities at first base in 6-10 (p = 0.002) and 11-15 years (p = 0.001); they also had a reduced velocities at the foul line in 6-10 (p = 0.004) and 11-15 years (p = 0.009). Right-handed infielders had reduced velocities at first base in 11-15 years (p < 0.001). No other differences were observed within infielders at first base or the foul line. There were no differences within the compared variables for catchers. Decreases in running velocity to first base with experience are seen in outfielders but are less prominent in infielders and catchers. Although physical capabilities for sprinting may decline with age, it is possible that through repetition more experienced players perfect the skill-related component of running to first base, thus preserving speed.
本文旨在比较美国职业棒球大联盟比赛中球员到达一垒的时间，以确定不同比赛经验年限的球员跑向界外球线和一垒时的速度是否会降低。1998年至2012年期间，共分析了1185次跑向一垒的冲刺时间：469名外场手、601名内场手和115名捕手。根据球员在美国职业棒球大联盟的服役年限，将他们分为不同的经验类别：1 - 5年、6 - 10年、11 - 15年和16 - 20年以上。比较了界外球线和一垒处的速度，并报告了区间加速度。按比赛位置以及左、右手击球手进行了比较。与1 - 5年经验的左外场手相比，6 - 10年（p = 0.04）、11 - 15年（p = 0.004）和16 - 20年（p < 0.001）经验的左外场手在界外球线处的速度降低；界外球线处的速度无统计学差异。右手外场手在6 - 10年（p = 0.002）和11 - 15年（p = 0.001）时到达一垒的速度显著降低；他们在6 - 10年（p = 0.004）和11 - 15年（p = 0.009）时在界外球线处的速度也降低。右手内场手在11 - 15年时到达一垒的速度降低（p < 0.001）。在内场手到达一垒或界外球线处未观察到其他差异。捕手在比较变量中无差异。外场手到达一垒的速度会随着经验增加而降低，但在内场手和捕手中不太明显。虽然短跑的身体能力可能会随着年龄下降，但经验更丰富的球员有可能通过重复练习完善跑向一垒的技能相关部分，从而保持速度。
