Do Pre-Workout Supplements Actually Help?
锻炼前的增补物真的有帮助吗?
Pre-workout supplements make big promises to boost your performance, and with those promises come high price tags. You supposedly get a burst of energy, fatigue less easily, and increase blood flow, all to help you get more out of your workout. The thing is, these supplements are really just powerful stimulants.
锻炼前的增补物承诺会提高你的锻炼效果，伴随这些承诺的是高额的标价t(U0LzpUu1^=E=S*。食用后，你应该能爆发能量，不会那么容易疲劳，会增加血液流动，这些都会帮助你的锻炼z4|Hbrd=JJoY。事情是，你吃的这些增补物真的只是有力的刺激剂]9|MiH2IivI。
Pre-workout supplements are pretty popular, and you can find them from pretty much any company that also sells protein powders. Optimum Nutrition, MusclePharm, and Cellucor are just a few of the major players. They typically come in powdered form, are meant to be mixed with water, and taste like a flavored sports drink—which makes sense because they’re loaded with artificial sweeteners, coloring agents, and other ingredients that we’ll get to shortly.
锻炼前的这些增补物特别流行，你可以在几乎所有售卖蛋白粉的公司里找到这些增补物r3,1[jA+f;。最佳营养，肌医药和塞尔乐只是售卖这些增补物的一小部分公司Ga17Uo^!g-。通常，它们都是粉状的，应该与水混合使用，尝起来就像加味运动饮料------这是有道理的，因为它们含有人工甜料，着色剂以及下面我们很快将要讲到的其它配料@cm%VEgjIHmHHc~;7=。

The Difference Between Various Kinds of Protein Supplements
不同种类蛋白补充物的区别
They’re called protein supplements for a reason: you only need them if your current intake needs a boost.
它们都被叫做蛋白补充物是有原因的：只有当你现在摄入的东西需要推动时，才会需要它们bC7cJ~BvIRpmACJkd4Aw。
Within 20-30 minutes of drinking one, you start to feel something, like it’s “kicked in,” and you’re ready for your workout. It’s a blessing, but also a curse.
喝了一杯之后，20-30分钟内，你就会感觉到一些东西，就好像它在踢你，这就说明你已经准备好要去锻炼了,T0G&)E_^z5oFg(m。这是福佑，而不是诅咒j%pJ8Z2R.fUAMmylv。
Most pre-workout supplements contain caffeine. And lots of it.
大多数锻炼前的补充物含有咖啡因，而且是大量的咖啡因8ly17(5vuljQ+CBi3J,4。
Caffeine is commonly used by athletes, especially those in endurance sports, to improve their exercise performance. It helps you focus more and feel less fatigue—exactly the claims the supplement labels make! So, in reality, when you feel like you’re ready to take on the entire weight room, you can thank the caffeine for that, not the supplement.
运动员通常都会使用咖啡因，尤其是考验耐力运动的运动员，以提升他们的运动效能,j]y^d*7J@e%。咖啡因能帮助你更加专注，不那么疲劳-------这就跟增补物标签上说的一模一样！所以，现实中，当你感觉你准备好开始健身房的所有项目时，你可以想这是咖啡因的作用，而不是补充物的作用e]6imzEF6x,H。
The pre-workouts I’ve tried from Optimum Nutrition, JYM, and Kaged Muscle contain between 175 milligrams (Optimum Nutrition) and 300 milligrams of caffeine per serving (Kaged Muscle). For real-world context, a single can of Red Bull has 80 milligrams of caffeine and a cup of coffee is close to 100 milligrams.
我从最佳营养，JYM和Kaged Muscle这些品牌中所尝试的锻炼前增补物中，(最佳营养)每份含有175毫克咖啡因，（Kaged Muscle）每份含有300毫克咖啡因17O5nMne29s(f]QtW。在现实情况下，一瓶红牛含有80毫克咖啡因，一杯咖啡中所含的咖啡因接近100毫克HO+~]skwySv=ov3_ApF。

译文属可可原创，仅供学习交流使用，未经许可请勿转载