mardi 8 octobre 2013

Is Doing Cardio After Weights Superior To Doing It Beforehand?

By Russ Howe


At some stage, everyone who wants to know how to lose weight finds themselves in a situation in the gym where they are getting conflicting advice from everyone they talk to. One of those situations involves this question - should you do cardio before or after weights?

Today you will discover the facts behind the answer to this question.

If you were to ask most experienced gym users for their opinion on this matter, you would probably be overwhelmed with the conflicting information in many people's views on the subject. You would also be shocked that despite the fact someone may look good, it appears they may merely be training instinctively and without any real knowledge of why they are doing things a certain way. Most people believe that doing cardio after weighs is superior as it allows you to hit the weights while your energy is peaking.

This is a theory which stands up nicely when you say it out loud, but loses credibility when you look at the facts scientifically.

You see, in order to get to the bottom of this popular gym myth we have no choice but to look at things on a scientific level. The body makes several noteworthy changes during your time on the gym floor, some of which are hugely important in answering this question. The first of which is m-TOR release.

You may have seen that name, m-TOR, plastered across the pages of muscle building magazines in the past. That's because it is the enzyme your body releases in increased volume following a tough workout. It is the enzyme which is considered the 'key' to 'turning on' the post workout muscle building recovery phase. So if you are trying to build lean muscle in the gym (and who isn't?) then it makes sense to take increased m-TOR release very, very seriously. Ideally, you want to be in a state of increased m-TOR release for as long as possible after each and every workout.

During aerobic activity, such as a bike or treadmill, the body adapts by releasing an enzyme called AMPK.

Here is the real kicker - AMPK release blunts m-TOR release significantly!

So by jumping on a treadmill after your weights workout and doing half an hour of cardio exercise, you are actually causing your body to release a spike of AMPK and shut down much of the increased m-TOR you caused by working hard on the iron in the first place.

Also, a study from northern California looked into the theory that pre workout cardiovascular activity would zap strength from the muscles. What they discovered was quite shocking. Like we said earlier, theories do not always play out the way you expect them to. Subjects noticed that pre workout cardio only had a negative impact on the muscles which were used during the cardio itself, for example if the cardio was legs based then leg exercises would be impacted, but every upper body move remained just as powerful. Combine this with the fact that pre workout cardio also allows you to get the full benefits of increased m-TOR levels and you can see why pre workout cardiovascular exercise is scientifically recommended as the way to go here.

If you are searching for the best explanations on how to lose weight then it makes sense to go with the most logical scientific answers rather than buying into the wealth of gym myths which are out there. Should you do cardio before or after weights? The latest science is massively in favor of doing it before.




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