跑姿method of running

 　　　　　　　
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看得我似懂非懂，听力好的给我解释下~~
1、Change Support from one leg to another.
2、Raise you ankle straight up under the hip.
3、Make your support time short.
4、Retain your support easy, effortlessly.
5、Have your support on the balls of your feet.
6、Don't touch the ground with your heels.
7、Don't move your weight to toes, raise your ankle when your weight is on the balls of your feet.
8、Keep your ankle fixed at the same angle.
9、Keep you knee bent always,don't straighten it.
10、Keep your feet behind the vertical line going through your knees.
11、Don't increase your stride length or range of motion.
12、Keep you knees and thighs down and relaxed.
13、Don't move you knees and thighs too far apart.
14、Don't fix on landing.
15、Don't point your toes, don't land on the toes.
16、Your legs should land themselves without any muscular activity.
17、Keep your shoulders, hips and ankles along one vertical line.
18、Arm performance is a natural balance for leg movement.