You look at the lumbar extensor muscles.

看看腰部伸。

Also, other studies showed flexibility improvements in areas like the knees, hips, and back extensors.

此外，其他研究显示膝盖、臀部和背部伸等区域的柔韧性也得到了改善。

The whole extensor chain strength, etc. I might do some bilateral squats with my hips.

整个伸链的力量等，我可能会做一些双的臀部深蹲。

So they don't feel like they have to get extra work from their lumbar extensors.

因此他们不会觉得必须额外依赖腰背部伸工作。

The common fibular nerve is in charge of the muscles in the anterior and lateral compartments of the leg, and intrinsic extensors of the foot.

腓总神经支配小腿前部和外部的肉，以及足部的固有伸。

These muscles include the flexor digitorum profundus which flexes the fingers at the interphalangeal joints, and the extensor digitorum which hyperextend them at the metacarpal phalangeal joint.

前包括指深屈（在指间关节处使手指屈曲）及指伸（在掌指关节处使手指过伸）。

They don't really have so many of the extensor muscles that are the weight-bearing muscles; instead, they rely on retractor muscles to pull themselves along.

他们实际上并没有那么多作为负重肉的伸；相反， 他们依靠牵开器肉拉动自己。

One muscle of each pair is called the flexor. It bends a joint and brings a limb closer to the body. The other muscle, the extensor, does the opposite.

每一对肉中的一块被叫做屈。它可使关节弯曲并使这部分肢体更靠近躯体。另一块肉即伸，作用相反。

If you can pre-turn the pelvis with a lot of lordosis in the spine, you get much more power development behind the center of mass through the extensor range.

如果你能在脊柱呈现明显前凸的情况下预先转动骨盆，便能在伸展范围内获得更多位于重心之后的动力发展。

So footfall has to, occur behind the center of mass and then you get a very brief period of time to create an extensor pulse and then recover the leg.

因此，脚部着地必须发生在身体质心的后方， 随后你仅有极短的时间产生一个伸脉冲， 并迅速恢复腿部状态。

So it's that whole conversation of like, this isn't bad or wrong, but a better swing, a more powerful swing is going to come from your glutes rather than those spinal extensors.

所以整个讨论的核心是：这本身并没有错或不好，但更优、更有力的摆动动作应该依靠臀，而不是靠脊柱伸。