We have two basic types of muscle fibers, slow twitch and fast twitch.

我们每个人有两种基本的肌肉纤维，慢抽搐和快抽搐肌纤维。

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Too much distance work can convert fast twitch muscle fibres into slow twitch fibres and can actually decrease an athlete's speed over time.

太多的长途运动会造成快肌纤维转换成慢肌纤维，并随着时间的推移，逐渐减慢运动员的速度。

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Your distance runs, of course, produce aerobic gains, including increased blood volume and capillarization, enhanced mitochondrial density and size, and improved slow-twitch fiber development.

你的耐力训练可以提高你的有氧能力，包括增加血液量和斜阳能力，提高线粒体的密度和体积，促进慢肌纤维的发育。

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Kenyans and East Africans in general tend to be short and slender with large natural lung capacity and a preponderance of slow twitch muscles.

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Is there a pill for this twitch or a salve to slow this reflex?

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