阻滞球（Blocking）
Also known as: 推顶阻滞, 抑制释放
阻滞是指手臂和球杆在触球时未能完全释放——杆面被held在打开状态，球笔直飞向右侧（对右打球手而言），没有正常曲球的弯曲轨迹。
高尔夫中的阻滞球，是指起始方向偏向目标右侧（对右打球手而言）、并持续偏右飞行的击球——沿直线飞行，或略微带一点正常曲球的弯曲，但不会回到预定的目标线上。它与拉球或勾球正好相反：两者都涉及由内而外的球杆路径，但拉球起始偏左是因为路径是由外而内的，而阻滞球起始偏右是因为路径是由内而外的，同时杆面相对于该路径处于打开状态。理解阻滞的原因，需要把路径和杆面角度分开来看——单独任何一个都不能决定结果；两者的组合才能决定。
阻滞最常见的成因是以下两种力学模式之一。第一种是旋转停滞：下半身领先得过于积极，导致身体停滞或悬滞，使手臂和球杆被困在正在旋转的身体后方，没有释放的空间。球杆离开触球区时指向右侧，而杆面——无法及时关闭——也随之偏右。第二种是手动held住杆面：一名试图避免勾球的球手（也许是在从一次翻手过度纠正之后）可能有意识地把杆面held在打开状态，即便路径正确，也会产生阻滞。
阻滞在挥杆速度较高时更常见，因为快速挥杆所涉及的离心力，需要更积极的前臂旋转才能关闭杆面。突然提高速度的业余球手（也许是通过一号木适配或训练计划）有时会发现，他们原有的前臂旋转幅度已经不足以在新的速度下关闭杆面，从而产生阻滞。调整释放时机——让前臂更早、更积极地开始旋转——通常是技术上的解决方案，常常还需要结合把握杆调整得更强一些，以降低所需的旋转量。
If you are blocking shots, check your finish. This means a blocked shot often produces a finish where the club wraps behind your neck and your hands end up on the right side of your head (for a right-hander). This means a full, high finish with the club wrapping to the left side indicates better forearm rotation and less blocking.
Use a box or headcover placed just outside the ball on the right side (target side) of your stance as a path reference. This means if you are blocking, your club will miss the box to the right. Practice clearing the box by starting the face closing earlier in the downswing. This forces the forearms to rotate rather than the body stalling.
Example
一名承受压力的球手在击球时“僵住”，眼看着球笔直飞向右侧——这就是阻滞球，释放被中断了。
How it shows up on video
From a face-on camera angle, a block often shows the hips rotating aggressively. At the same time, the arms appear to lag behind the body rotation and exit the impact zone to the right. The lead shoulder may remain low or the body may appear to "hang back" slightly at impact, with the arms pushing rather than swinging freely. From a down-the-line angle, the club path of a block appears in-to-out. But unlike a draw, the face appears open relative to the path, pointing to the right of where the club is traveling. This means this face-to-path relationship is what produces the straight-right trajectory.
Common mistakes
- Aiming left to compensate for blocks — this reinforces the open face delivery by reducing the pressure to close the face. Fixing the root cause (stalled rotation or held face) is the only sustainable solution.
- Adding more in-to-out path to try to fix the block. This means if the face is open relative to the path, more path to the right makes the block worse, not better. The face needs to close, not the path needs to change.
- Mistaking a block for a push. This means a push and a block can look similar (ball going right). But a push typically comes from an out-to-in path with a square face pointing right. At the same time, a block comes from an in-to-out path with an open face. The fix is different for each.
- Over-rotating the forearms to fix the block (creating hooks) — the opposite of the block problem. Adding forearm rotation is the right direction, but calibrating the amount requires monitoring ball flight to find the point where neither block nor hook dominates.
In SwingVantage Motion Lab
SwingVantage can observe blocking patterns from face-on video by analyzing hip-to-arm timing through impact. This means in particular, whether the arms appear to lag behind the body rotation and exit to the right. Club path and face angle inference from ball flight and impact data provides additional context. The system labels these observations with appropriate confidence based on available video quality.
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