阻挡低球
Also known as: 在地面阻挡, 短跳阻挡
阻挡低球是指下跪压制一颗弹地投球的技术，防止会让跑垒员推进的暴投和逸失球出现。
当一记下坠球扎进地面，或一记变速球投得太低时，捕手必须阻挡而不是接球——把膝盖落到地上，把手套放到两腿之间贴近地面，用身体作为一堵墙把球控制在身前。一名阻挡技术出色的捕手，能让投手放心地把下坠球和变速球投向好球带下缘，不用担心跑垒员因逸失球而推进。这是处理让快投垒球投手有效发挥的球种配比的一项必备技能。
Practice blocking drills where a coach rolls balls in the dirt toward you. This means focus on getting both knees down at the same time before the ball reaches the plate. This creates the wall before it's needed rather than after.
Develop a specific read trigger for each pitcher's drop ball and changeup release. This means when you see the release cue for those pitches, begin the knee drop immediately rather than waiting to confirm the trajectory is in the dirt.
Example
投手把一记下坠球投到本垒板前弹地，此时二垒有跑垒员；捕手下跪把它挡在地上，防止跑垒员推进。
How it shows up on video
On video a successful block will show both knees at the same time hitting the dirt with the glove dropping between the legs before the ball arrives. This means not after. The body should form a wall that angles the ball downward to stay in front rather than deflecting it sideways. A failed block is visible as the knees arriving after the ball. This causes it to pass under the glove, or the glove reaching instead of dropping. This allows the ball to pass underneath.
Common mistakes
- Trying to catch a ball in the dirt rather than blocking it. This allows it to skip off the heel of the glove and past the catcher
- Dropping the knees after the ball arrives rather than anticipating the need to block based on the pitch type and the catcher's read of the trajectory
- Blocking the ball but deflecting it sideways rather than into a controllable zone in front of the plate, allowing a baserunner to advance
- Standing up before confirming the ball is fully controlled and the runner is not advancing, allowing a secondary advance on a loose ball
In SwingVantage Motion Lab
Motion Lab measures the timing of the knee drop relative to ball contact with the ground, confirming whether the catcher is anticipating the ball in the dirt or reacting after the bounce begins.
Frequently asked questions
为什么捕手应该阻挡球，而不是试图接住它？
因为接住一记地面上的球需要一个近乎完美的手套角度，而这在比赛速度下几乎不可能做到——用身体阻挡更可靠，无论具体的弹跳角度如何，都能把球控制在身前。
良好的阻挡能帮助投手投得更有效吗？
能——一名阻挡技术出色的捕手，能给投手足够的信心，把下坠球和低变速球投向好球带边缘，相比只能处理空中投球的捕手，能扩大投手的有效球种库。
Related terms
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