Should You Do Cardio Before Or After Weights For Lean Muscle Gains?

By Howe Russ


Should you do cardio before or after weights when you're trying to build a leaner physique? If you're trying to learn the basic principles of how to lose weight, today we will answer this popular question for you.

Only in recent years has science shed any light on this topic. Until as recently as five years ago, the entire answer to this question was based on theory. This led to people being told different information by everybody they asked for advice.

That's no longer the case. Today we'll be looking at a few recent studies and talking about why science has now shown cardiovascular activity to be more effective when performed before resistance exercises, as opposed to afterwards. []

Participants in a study at the James Maddison University were subjected to an exercise program over a number of months where one group followed a cardio/weights spit and the others followed a weights/cardio split. The muscle growth in those who did their resistance training first was substantially lower than those on the opposite routine.

For those who are training for fat loss, the findings were also highly in favor of doing aerobic exercise prior to any barbell work. The Journal Of Strength And Conditioning discovered that weight loss, specifically fat loss, was increased greatly in individuals who did their aerobic exercise first.

Those facts may be controversial to many fitness enthusiasts, who opt to perform their resistance training first. The theory behind that method is that they don't want their muscles to be tired by aerobic exercise when they begin pushing out repetitions. This makes sense and it's an approach which does yield results. However, science suggests that switching them around is far superior for both fat loss and lean muscle development.

The main findings of recent studies focus on the effects of two enzymes:

* Adenosine Monophosphate-Activated Protein Kinase (also called AMPK for short!)

* mTOR (aka mammalian target of rapamycin)

You may have heard of these before. AMPK is the enzyme responsible for helping the body adapt to endurance exercise, while mTOR is considered an 'on' switch in the muscle building process. After you finish a weights workout, your mTOR levels surge for around one hour. This means consuming quality nutrition at this point will ensure quality lean muscle gains. After around six hours, levels of mTOR return to normal. []

By spending that crucial hour still working hard in the gym on a bike or treadmill you do two bad things. Firstly, you waste that golden hour of mTOR release. Secondly, you'll release more AMPK which actually blunts the release of mTOR, too.

Although you can certainly achieve a fitter physique regardless of whether you do cardio before or after weights, recent studies seem to weight heavily in favor of performing your aerobic activity before you begin using dumbbells and barbells. In order to learn how to lose weight, getting past common myths like this is part of the battle. You've just done that today and can now apply this new knowledge to your own training.




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