The relationship between the instant speed of swing during smash and the bounce distance of the ball hit were studied by experiment.

通过对击球瞬间挥拍速度与被击出的球飞出距离的关系进行了实验研究。

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More height is more speed, just waiting to happen. You can increase the energy of your swing in two separate ways.

荡得越高说明你的速度越快，这仅仅是一个过程问题。你可以通过两种不同的方法来增加你的能量。

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The coach should attach importance to the training of pace length, arm swing, speed and stamina as well as psychological quality in order to improve their performance.

要提高中长跑的成绩，教练员要注意加强对运动员的步长训练、摆臂训练、速度耐力训练、心理素质训练和成绩测试工作。

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The device saves all the data from each hit, namely the animation, path, putter-face angle at impact and throughout the stroke, angle of attack, tempo, impact speed and swing path distance -- in other words, more information than most players would know what to do with.

ENGADGET: 3BaysGSA Putt: a Bluetooth golf gadget that puts eyes in your putter (hands on)

Wearing lumbar corsets may have affected the swing's speed and accuracy as well as the carrying distance, or length of the shot, they said.

WSJ: Will Corsets Help Golf-Related Back Pain?