挥杆姿势
Also known as: 预备姿势, 预备时的脊柱角度
高尔夫中的挥杆姿势，是指预备时的脊柱角度——从髋部向前弯曲、保持背部挺直，让手臂在肩膀下方自然垂下，身体能够以运动员的方式旋转。
高尔夫姿势指的是预备姿势时的身体位置——具体来说，是运动型站姿、髋部前屈、脊柱角度、膝盖弯曲度和重心分布的组合，为挥杆奠定身体基础。良好的姿势能让身体高效旋转，手臂自由摆动，球杆沿着稳定的弧度被送出。不良的姿势会造成限制，迫使整个挥杆过程中出现代偿，产生一种常被误诊为技术问题、实际上却是预备姿势问题所造成的不一致性。
良好高尔夫姿势的关键组成部分包括：髋部前屈（从髋部而不是腰部弯曲，从而保持脊柱挺直）、中立的脊柱（没有过度的C形或S形弯曲）、膝盖弯曲（轻微弯曲，大约15到20度，提供运动型的预备状态，而不是蹲下）、重心落在前脚掌上（而不是脚跟或脚尖），以及“挺胸”姿态（胸骨向上向前，防止肩膀内扣）。手臂应该从肩膀自然垂下，球杆杆身应处于与所用球杆相匹配的合适角度。
姿势会随着一轮比赛的疲劳而逐渐变差，如果没有建立起基本的预备习惯，变差的速度会更快。许多业余球手在练习场刚开始的几次挥杆时预备姿势正确，随着疲劳的累积，会逐渐驼背或反过来站得过直。建立姿势意识和一套每次都检查姿势的稳定预备流程，比偶尔的纠正更有价值，因为每次击球时姿势的变化，会产生不一致的挥杆几何形态和不稳定的触球。
Build your address posture in three steps. This means stand upright with good posture, then hinge forward from your hips (not your waist) until the club reaches the ground, then soften your knees slightly. This sequence naturally creates the hip hinge, straight spine, and knee flex that make up correct golf posture.
Do a "wall drill" for posture calibration. This means stand with your back flat against a wall with heels 3 inches away, then hinge forward into your golf posture from this position. The wall provides immediate feedback about spine straightness and whether you are hinging from the hips (the back stays straight against the wall) versus bending the spine (a gap appears at the lower back or the back peels away from the wall).
Example
一名从髋部弯曲、在握杆之前让手臂笔直垂下的球手，无需测量就能找到与球之间的正确距离。
How it shows up on video
From a down-the-line camera angle, golf posture is visible as the amount of hip hinge (forward bend from the hips toward the ball), the straightness of the spine. The amount of knee flex. Good posture shows a straight spine angled forward from the hips with a moderate knee bend, and arms hanging naturally below the shoulders. From face-on, good posture appears as an upright, balanced stance with no visible lateral lean and the weight distributed between both feet in an athletic-ready position. Rounded shoulders or a curved spine visible from either angle indicate posture issues.
Common mistakes
- Bending from the waist instead of the hips. This means bending the spine rather than hinging from the hips creates a curved spine (C-posture) that restricts rotation and creates lower back stress. The forward tilt should originate at the hip joints with the spine remaining straight.
- Too much or too little knee flex. This means excessive knee flex (too much squat) restricts hip rotation and feels like sitting down. Too little (standing too tall) removes the athletic readiness and makes the swing stiff and restricted.
- Weight on the heels — standing on the heels tips the swing plane back and makes it very difficult to use the ground effectively. Weight should be on the balls of the feet for athletic balance and ground engagement.
- Allowing posture to degrade during practice. This means set up once, hit a ball, then rebuild your posture for the next shot rather than taking multiple balls without resetting. Repeating shots without resetting posture ingrains the degraded version rather than the intended one.
In SwingVantage Motion Lab
SwingVantage assesses golf posture from both camera angles at the address position. This means in particular spine angle from down-the-line and overall stance width, balance, and shoulder position from face-on. The system identifies common posture faults (C-posture, S-posture, too upright, too hunched) with confidence labels based on the clarity of the golfer's full body position at address in available video.
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