Warm-up with Baseball Bats of Varying Moments of Inertia: Effect on Bat Velocity and Swing Pattern
Warm-up with Baseball Bats of Varying Moments of Inertia: Effect on Bat Velocity and Swing Pattern
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使用不同惯性矩的棒球棒进行热身：对球棒速度和挥杆模式的影响
DOI：
10.1080/02701367.2003.10609091
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发表时间：
2003
影响因子：
2.2
通讯作者：
Levi Groomer
中科院分区：
文献类型：
--
作者：
D. Southard;Levi Groomer
摘要本研究旨在探讨不同转动惯量的棒球棒在热身时，是否会对挥杆模式与球棒速度产生影响。10名经验丰富的棒球运动员（年龄20-25岁）自愿参加了这项研究。每个参与者被要求在3种不同的条件下以最大的努力完成10次干式摆动（5次热身和5次热身后）。热身后始终使用标准球棒（I = 0.27 kgm 2; 83.8 cm，9.1 N）。条件1的热身是用标准球棒。条件2要求参与者用标准球棒加6.1 N铅甜甜圈（I = 0.49 kgm 2，83.8 cm，15.6 N）热身。条件3要求参与者用空心塑料球棒（I = 0.08 kgm 2; 83.8 cm，3.34 N）热身。定量和定性分析表明，以下热身与加权蝙蝠（最大的转动惯量），摆动模式显着改变，后热身速度是最低的三个条件。
Abstract The purpose of this study was to determine if warm-up with baseball bats of different moments of inertia has an effect on swing pattern and bat velocity. Ten experienced baseball players (ages 20–25 years) voluntarily participated in this study. Each participant was required to complete 10 dry swings (5 warm-up and 5 postwarm-up) at maximum effort within 3 different conditions. Post warm-up was always with a standard bat (I = .27 kgm2; 83.8 cm, 9.1 N). Warm-up for Condition 1 was with the standard bat. Condition 2 required participants to warm up with a standard bat plus a 6.1 N lead donut (I = .49 kgm2, 83.8 cm, 15.6 N). Condition 3 required participants to warm up with a hollow plastic bat (I = .08 kgm2; 83.8 cm, 3.34 N). Quantitative and qualitative analyses indicated that following warm-up with the weighted bat (largest moment of inertia), swing pattern was significantly altered, and post warm-up velocity was the lowest of the three conditions.