髋部打开（Hip Clearance）
Also known as: 清髋, 触球时的髋部旋转
髋部打开是指前侧髋部在触球区旋转让开，为手臂和球杆自由挥过身体创造出空间。
高尔夫挥杆中的髋部打开，指的是前侧髋部在触球区旋转让开，为手臂和球杆挥向目标创造出空间。如果髋部打开不充分，手臂就无法沿着一条直穿的路径继续前进，球手必须做出代偿——常见的方式包括把手臂甩过身体（过顶下杆）、把球顶出，或翻手让杆面归方。髋部打开是手臂能够自由、不受阻碍地挥过球位的先决条件。
髋部打开的力学要求前侧髋部在下杆推进的过程中，围绕身体旋转并移向身体后方。在触球时，前侧髋部应该已经明显朝目标方向打开——巡回赛职业球员在触球时的前侧髋部角度通常打开30到45度。这种旋转为双手和球杆沿一条直穿的路径挥过身体创造了空间。旋转不足的球手，往往感觉手臂“卡住了”，或者无法自由地释放球杆——因为身体上确实没有足够的空间让手臂挥过去。
髋部打开与髋部滑动是不同的概念。打开指的是围绕身体、朝身体后方旋转；滑动指的是不带旋转的横向移动。一名滑动髋部却没有打开的球手，会以另一种方式感到被阻挡——身体位置不对，但旋转所需的空间也没有创造出来。前侧髋部的活动度限制——尤其是前侧髋部内旋的能力——是造成髋部打开不足最常见的身体原因，针对性的髋部活动度训练能直接改善这一点。
Practice the "bump and clear" feeling. This means at the start of your downswing, first bump the lead hip slightly toward the target (small lateral shift), then immediately rotate the lead hip behind you as fast as you can. This means the combination of bump then rotate is the core of hip clearance.
Test your hip clearance with a wall drill. This means stand with your lead hip about 6 inches from a wall, make a backswing, then initiate the downswing and clear your hips without touching the wall. This means if your lead hip bumps the wall, you are not clearing but sliding. If you can rotate freely without contact, your clearance pattern is correct.
Example
一名在触球时腰带扣明显朝向目标左侧的球手，说明髋部已经完全打开——手臂自由挥动，杆面方正到位。
How it shows up on video
From a face-on camera angle, hip clearance is visible at impact as the lead hip appearing to have rotated away from the camera. This means the lead hip should look like it is "behind" the lead leg, having cleared out of the impact zone. Insufficient clearance shows the lead hip remaining square or pointing toward the ball at impact, giving the hips a "blocked" or "stalled" appearance. From a down-the-line angle, good clearance shows the trail hip driving through toward the target. At the same time, the lead hip has cleared space. This allows the arms to swing past the body on an unobstructed path.
Common mistakes
- Sliding the hips forward without rotating. This means lateral movement without clearance rotates produces a "chicken wing" arm position. This is because there is no room for the arms to swing through. The hips must rotate, not just slide.
- Early extension (standing up through impact) — a golfer who thrusts the hips toward the ball blocks clearance from the other direction. The hips move toward the ball instead of rotating around and behind the body.
- Clearing the hips too early (spinning out). This means excessive hip clearance early in the downswing leaves the arms and club behind. This produces a weak push or block to the right. Timing matters as much as the amount of rotation.
- Ignoring hip mobility as the root cause — many golfers try to "think" their way to better clearance without addressing the physical limitation. If the lead hip cannot internally rotate adequately, no swing thought will create proper clearance.
In SwingVantage Motion Lab
SwingVantage observes hip clearance from face-on video by tracking the lead hip rotation angle relative to the target line through the impact zone. The system can identify stalled or blocked hips at impact and over-rotation (spin-out) patterns, with confidence labels that reflect the clarity of the golfer's hip position in the available video.
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