And make sure you are indeed training to concentric failure.

保你是在进行向失败训练。

The other high tide you can think of is being caused by the Earth's centripetal force.

其它高潮你能够想象到是由地向力引起。

Is this the centripetal force in action?

这是运转时向力吗？

Because the centripetal force of Earth's rotation is stronger at the Equator.

因为地自转向力在赤道处更强。

Now there is a more scientific term known as concentric failure, where you fail to complete the concentric, muscle-shortening phase of a rep without significant compromises to your form or technique.

现在有一个更科学术语叫做向失败，指是你不能在没有对形式或技术做出重大妥协情况下完成一个向、肉收缩阶段训练。

So there was a meta-analysis recently where they looked at either concentric repetition of more than two seconds or less than two seconds and saw strength outcomes were better.

因此，最近进行了一项荟萃分析，他们研究了超过两秒或少于两秒向重复，结果发现力量结果更好。

A 2016 study showed that subjects with multiple years of training experience who believed they were pushing to their max, end up making less gains than subjects that were directly instructed to push to concentric failure.

2016 年一项研究表明，有多年训练经验受试者认为自己已经达到了极限，但最终取得效果比直接指导进行向失败训练受试者少。