10 Ways to Lose Muscle

by Rachel Cosgrove, C.S.C.S.

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By the way some guys train and eat, you’d swear they were trying to lose muscle, not build it. But, hey, maybe that’s what they want—and if you want to join them, you’re more than welcome to. So if you’re looking to lose some size—if you’re already so jacked that your biceps are tearing your sleeves, and your dream is to look skinny and weak—you can do what they do. Or maybe you’re doing it already and don’t even realize it.

The only way to find out for sure is by checking out our list of the 10 worst workout mistakes—things you do that sabotage your progress and cost you muscle. Recognize a mistake as part of your daily rou- tine?We also came up with some quick and easy fixes you can use to correct these problems and net truly awesome gains.

1. YOU DON’T EAT ENOUGH (FOR FEAR OF GETTING FAT)
Yes, extra calories can mean extra belly fat, but if you’re lifting consistently and correctly, most of what you’re taking in should be converted to muscle. The truth is your muscles will never grow without a surplus of calories. For a lean guy looking to put on muscle mass, 2,000 calories a day won’t cut it. In fact, this kind of restricted diet is actually the ideal recipe for losing muscle tis- sue and sparing fat, as it causes the body to shift into starvation mode and shed calorie-consuming muscle. It also makes you store fat for emergency energy. And the less protein you eat, the less of a chance you give your muscles to recover after a workout.

2. YOU AMP UP YOUR CARDIO
There are three ways that cardio typically cancels out muscle gains: doing it too often, doing it for too long, or doing it on an empty stomach. In general, daily cardio sessions simply burn too many cumulative calories to allow you the surplus you need for muscle mass, and the same can be said for sessions that last 45 minutes or more. Work out in the morning before breakfast and you only compound the problem. When you wake up, your body is already in a catabolic (muscle-burning) state, since a night’s sleep—time spent without eating—empties your tank. Working out immediately just reinforces this condition and costs you intensity—whether on the treadmill or with the weights. The end result: You burn muscle as fuel in place of calories you should have consumed at breakfast.

3. YOU WORK TO EXHAUSTION
If the biggest musclehead in the gym has taught us anything, it’s that doing lots and lots of sets and reps to the point of total collapse (he can’t even muster his signature grunt!) is the best way to build muscle. Never mind that he’s a genetic freak and/or probably on steroids. More than 20 total sets per muscle group, or more than 15 reps per set, may leave your muscles swollen (hence the ego-enhancing “pump”), but it will be from inflammation, not actual muscle growth. Any weight that allows that much work is too light to cause sub- stantial growth, and you’ll reap no lasting gains.

4. YOU FAVOR BODY-PART WORKOUTS
Breaking your training down into chest days, back days, and arm days over- works some muscles and neglects others. It’s an old-school way to train—and it’s incredibly outdated. Most guys still do it, and many make gains for a while, but their progress eventually comes to a halt, usually due to injuries. Body-part routines also prevent your biggest muscles from ever learning to work together in the kinds of coordinated effort you need to lift really heavy weights—another major avenue for fast growth.

5. YOU SHUN STRETCHING
Boring? Definitely. But stretching has been shown to speed up recovery and increase a muscle’s range of motion, making more room for muscle fibers to grow. Simply lifting weights will increase your risk for injury and se- verely limit your ability to move athletically—so no matter how big you are, you’ll probably be picked last for teams.