Department of Clinical, Health, and Applied Sciences, Health and Human Performance Institute, University of Houston-Clear Lake, Houston, Texas; and.
Texas Rangers Baseball Organization, Arlington, Texas.
J Strength Cond Res. 2023 Aug 1;37(8):1616-1622. doi: 10.1519/JSC.0000000000004435. Epub 2023 Jan 18.
Amonette, WE, Vazquez, J, and Coleman, AE. Cross-sectional analysis of ground reaction forces during jumps in professional baseball players. J Strength Cond Res 37(8): 1616-1622, 2023-This study described and compared force plate kinetics in major (MLB) and minor (MiLB) baseball players while performing vertical jumps (CMVJ), squat jumps (SSJ), and depth jumps (DJ). Second, comparisons were made between playing positions. Data were collected on 101 professional baseball players. Peak force, eccentric and concentric impulses, peak power, and jump height were determined from each test. Reactive strength index was computed from the DJ. Data were compared using factorial analysis of variances, alpha was set at p ≤ 0.05, and effect sizes were reported using Cohen's d . During CMVJ, MiLB players generated more force ( p = 0.04; d = 0.48), power ( p = 0.02; d = 0.42), and jumped higher ( p = 0.03; d = 0.32) than MLB players. Pitchers generated higher propulsive impulses than catchers ( p = 0.004; d = 0.93). Outfielders generated more power ( p = 0.02; d = 0.98) and jumped higher ( p = 0.049; d = 1.08) than catchers and infielders ( p = 0.025; d = 0.32). Minor league baseball players generated more force ( p = 0.002; d = 0.62), power ( p = 0.001; d = 0.84), and jumped higher ( p = 0.02; d = 0.48) than MLB players in SSJ. No differences were observed by position in SSJ. Minor league baseball players jumped higher than MLB players in the DJ ( p = 0.01; d = 0.57) and outfielders generated more power in the DJ than pitchers ( p = 0.05; d = 0.43) and catchers ( p = 0.007; d = 1.61). Reactive strength index was greater in outfielders compared with catchers ( p = 0.01; d = 1.20). These data indicate that MiLB players were generally more powerful and jumped higher than MLB players in the 3 performance tasks. The difference observed by playing level were likely related to physical preparedness at the beginning of spring training; positional differences were the result of athletic skill sets required for tactical excellence at each position.
阿蒙内特、韦、巴斯克斯、J 和科尔曼。专业棒球运动员跳跃时地面反作用力的横断面分析。J 力量与调理研究 37(8)：1616-1622，2023-本研究描述并比较了大联盟（MLB）和小联盟（MiLB）棒球运动员在进行垂直跳跃（CMVJ）、深蹲跳跃（SSJ）和深度跳跃（DJ）时的力量板动力学。其次，比较了不同的比赛位置。共收集了 101 名职业棒球运动员的数据。从每个测试中确定了峰值力、离心和向心冲量、峰值功率和跳跃高度。从 DJ 中计算出反应强度指数。使用方差的析因分析比较数据，alpha 设置为 p ≤ 0.05，并使用科恩的 d 报告效应大小。在 CMVJ 中，MiLB 球员产生的力（p=0.04；d=0.48）、功率（p=0.02；d=0.42）和跳跃高度更高（p=0.03；d=0.32）高于 MLB 球员。投手产生的推进冲量高于捕手（p=0.004；d=0.93）。外野手产生的功率（p=0.02；d=0.98）和跳跃高度（p=0.049；d=1.08）均高于捕手和内野手（p=0.025；d=0.32）。小联盟棒球运动员在 SSJ 中产生的力（p=0.002；d=0.62）、功率（p=0.001；d=0.84）和跳跃高度更高（p=0.02；d=0.48）高于 MLB 球员。SSJ 中没有观察到位置差异。MiLB 球员在 DJ 中比 MLB 球员跳得更高（p=0.01；d=0.57），外野手在 DJ 中产生的功率大于投手（p=0.05；d=0.43）和捕手（p=0.007；d=1.61）。外野手的反应强度指数大于捕手（p=0.01；d=1.20）。这些数据表明，在 3 项表现任务中，MiLB 球员通常比 MLB 球员更强大，跳跃高度更高。在比赛水平上观察到的差异可能与春季训练开始时的身体准备有关；位置差异是每个位置所需战术技能的结果。
