重心转移
Also known as: 重量转移, 前后前转移
重心转移是指身体重量在蓄力阶段落于后脚,在挥棒阶段有意识地转移到前脚的过程,由此产生的向前动量能在接触瞬间增加力量。
正确的重心转移始于蓄力时重心落在后腿,随后随着髋部旋转通过击球点,转移到稳固支撑的前腿。过早转移重心(在球下坠之前)就是一种扑球动作,会削弱旋转力量;完全不转移重心则会打出依赖手臂发力的挥棒。前腿必须在接触瞬间稳固支撑——前侧塌陷会白白流失能量。在慢投垒球中,球在空中停留的时间较长,给了击球员通过刻意练习打磨这一顺序的机会。
Check your finish. This means if you can hold your finish position for three full seconds with nearly all weight on your lead leg and the trail foot balanced on its toe, your weight transfer is correct.
Train weight transfer with a drill. This means start with your feet together, then stride with your front foot and immediately swing. This means the forced stride makes the transfer sequential and physical rather than something to think about.
Example
蓄力时重心60%落在后脚,接触瞬间则有90%落在稳固支撑的前腿上——击球员的身体就像一根卷紧的弹簧,释放力量击向来球。
How it shows up on video
From a front-on camera, weight transfer shows the trail heel lifting off the ground during the downswing as the majority of body mass moves toward the lead side. A reverse pivot shows opposite movement: the lead hip drifts backward while the trail foot stays grounded through the entire swing. The finish position is a reliable indicator. This means a hitter who cannot hold their finish with 90 percent of weight on the lead leg has not completed their weight transfer.
Common mistakes
- Reverse pivoting by loading the lead foot in the load phase rather than the trail foot. This puts weight on the wrong side going into the swing and destroys power
- Hanging back and failing to complete the transfer to the lead side through contact. This forces the hands to flip at the ball to compensate for the stalled lower body
- Sliding the entire body toward the pitcher instead of rotating around a stable lead leg, which moves the swing center off the ball
- Transferring weight too early by lunging toward the pitcher before the pitch arrives, arriving with all weight shifted and no stored energy left to rotate into the ball
In SwingVantage Motion Lab
SwingVantage tracks trail heel lift timing and lead-leg firmness through the contact frame to evaluate weight transfer completeness, identifying reverse pivot and hang-back patterns from face-on video.
Related terms
Related guides & benchmarks
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