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

By Howe Russ


When you are trying to build lean muscle in the gym, should you do cardio before or after weights for maximum results? This is a question often asked and rarely answered with anything more than personal opinion. If you are trying to figure out how to lose weight or build muscle, you're about to discover the facts on this topic.

For many years, this was a subject which was usually answered with personal opinion. There was no real proof whether it was more effective to perform cardiovascular activity before or after a workout, so most people would simply do what worked for their own body and pass on their findings to others.

Now science has provided the answers people were previously unable to get. We'll be looking at the findings of two studies in particular and analyzing why performing cardiovascular activity before a resistance workout was recently proven to be far more effective. []

While both approaches ultimately yield positive results, a study at the James Maddison University discovered that an aerobic-weights routine yielded far more lean muscle growth than a weights-aerobic 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.

Most folks at the gym base their opinion on this subject on what works for their own body. While there is nothing wrong with that approach at all, science suggests that those who insist upon working out with weights as soon as they hit the gym could increase results further by switching up their routine a little.

Two enzymes released during exercise will play an important factor here:

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

* Mammalian Target Of Rapamycin (also called mTOR for short!)

While mTOR is the enzyme responsible for kick-starting the body into the muscle building process at the end of a tough resistance workout, AMPK gets released during aerobic activity to adjust the body for endurance. For around 60 minutes after a workout you'll have a surge of mTOR, meaning the golden window for nutrition is this period if your goal is to gain lean muscle and burn excess fat. This surge lasts around 6 hours. []

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.

So, should you do cardio before or after weights? Whether you want to learn how to lose weight or how to pack on lean muscle, recent science is heavily on the side of performing your aerobic activity before you pick up a dumbbell.




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