CrossFit workouts are high-intensity, fast-paced, and are built around compound exercises like squats, burpees, and push-ups. They contain proven fat burning methods one of which is high-intensity interval training. There are a few ways CrossFit helps you burn fat and build muscle.
It burns a lot of calories in a short period of time
There are
studies
that show that sprinting, circuit training, and other high-intensity training methods work better for calorie and fat burning than low-intensity jogging, swimming, and aerobics classes. These training methods are incorporated into CrossFit workouts.
CrossFit workouts result in increased post-exercise calorie expenditure
According to a recent study, high-intensity CrossFit workouts trigger the afterburn effect. When you work out hard, your metabolism remains elevated for several hours and burns more calories in the process. This is known as excess post-exercise oxygen consumption or EPOC.
Excess post-exercise oxygen consumption can be triggered by a build-up of lactic acid, something that is common with CrossFit. This is because your body uses a lot of oxygen and energy to break down and clear out lactic acid. This means that the more lactic acid a workout produces, the longer this process will take. If your metabolism is faster, you will use more calories, and that will help you burn fat faster, even between workouts and while you sleep.
Building muscle increases your metabolic rate
Even if you’re not doing CrossFit to build muscle, it is highly likely that you will end up building at least some muscle. A lot of CrossFit workouts involve lifting weight, and certain studies show that HIIT, in general, can increase muscle size. Muscle is metabolically active tissue which means that it needs calories. This means that the more muscle you have on your body, the more calories you will burn.
Increased insulin sensitivity
When you eat carbs, your body produces the hormone insulin so that it can move the resulting glucose out of your blood and into your muscles. If there is any unused glucose left it will be turned into fat. If you aren’t active and have a lot of body fat, the effectiveness of insulin will be reduced and you will become resistant to insulin.
CrossFit will increase your insulin sensitivity
and lower your blood glucose level and that will prevent fat gain and create a better environment for fat burning.
Strength training
To build muscle with CrossFit, you will have to focus on strength training. Some CrossFit workouts focus only on cardio, and you will want to avoid those. Choose strength training exercises like deadlifts, pull-ups, dips, overhead presses, power cleans, and squats instead.
Selective bodybuilding training
You will also have to do selective bodybuilding training. CrossFit mostly consists of compound exercises, which use a lot of muscle groups at the same time and also allow you to lift heavy weights. But, if muscle hypertrophy is your goal, you will have to do more than just compound exercises.
Add some lateral raises, biceps curls, triceps pushdowns, and leg curls to your CrossFit workouts.
Nutrition
Another important thing to do when trying to build muscle is eating for muscle growth. CrossFit workouts will break down your muscles in a process called catabolism. While resting, your body goes into repair mode and builds your muscles back up again. To make this process faster, you should provide your muscles with adequate nutrients and energy.
This is best done by eating one gram of protein per pound of bodyweight because your body needs protein for muscle repair and growth. Some good sources of protein are meat, fish, poultry, eggs, soy products, nuts, and beans.