When it comes to building a six-pack, many guys don’t think to work any muscles outside of their core. But, to uncover your abs, you need to train your whole body, especially your legs. “Some of the largest and most metabolically consuming muscles in our body are in our hips and legs,” Cary says. “Work your lower body by doing squats, lunges, and dead lifts.” If you can work to engage your core during all of these exercises, even better.
1. Consume fewer calories than you're burning every day. Job one when trying to achieve a six-pack is to lose weight, which means expending more calories than you take in on a daily basis, says Dani Singer, a certified fitness nutrition specialist and certified personal trainer in Baltimore. He's the director of Fit2Go Personal Training. To optimize losing fat and not muscle, you need to be in a caloric deficit, eat adequate protein and strength train, he says. "The source of your food will affect health, but will have zero effect on your body composition," Singer says. "It's the total calories and macronutrients [protein, fat and carbs] from your foods that will determine how your body looks."
A regular pushup works your core. A reverse pushup will work it so hard your abs will want to form a labor union. “When your legs fire your body forward, your core has to work extremely hard to decelerate your body,” says B.J. Gaddour, C.S.C.S., director of Men's Health StreamFIT. So this ab exercise not only works your shoulders and arms, but gives you a killer core workout at the same time.
Bicycle: This exercise works your obliques as well as your rectus abdominis. Lie on your back, hips and knees bent at 90-degrees, chest curled over ribs, hands behind your head. Extend the left leg out while bringing the right knee in towards the chest and rotating the left shoulder toward the right knee. Keep the arm from crossing the face. Rotate from the trunk through the center to the other side without dropping your chest. Move in slow, controlled movements without shifting your hips.
We’ve discussed caloric deficits before, but in case you missed it, let’s start by recapping how the body requires a certain number of calories to sustain its current weight and activity level. That number varies from person to person and is influenced by metabolism, height, weight, age and other factors and is referred to as a “maintenance level” of calories.
"This exercise is so effective because it teaches you not to rely on your bigger muscle groups (like your thighs) and focuses on using your abdominals correctly in a controlled manner without using momentum. The use of the ball gives you natural feedback of your weaker side so that you can adjust and work on symmetry of your musculature, preventing future injuries."
If you want to get fit faster and burn more calories in less time, don't spend all your time in the so-called fat-burning zone. Instead, add some High Intensity Training (HIT) to your workouts a couple times each week. According to the American College of Sports Medicine, you can burn more calories in less time with short, high intensity exercise. You can also boost your overall cardiovascular fitness with this type of training. Be sure to slowly ramp up your intensity, however, or you could wind up with an injury.
To do it: Stand with your feet planted 3-4 feet apart, toes slightly turned out, hands on your hips. Lower into a plie by bending your knees out over your toes and lowering your hips directly underneath your shoulders. Then, as your straighten back up, slowly lift the right knee up towards the right shoulder. As you go back into the plie, slowly return the foot to the floor. Be sure to move at a very controlled pace to really engage the obliques the entire time—on the way up and on the way down. Do 10 repetitions on the right side, then another 10 repetitions on the left side for a total of 20.