No matter how strong your core is, you aren’t going to see a six-pack if your muscles are hiding behind a big layer of fat, says Jim White, R.D., owner of Jim White Fitness & Nutrition Studios in Virginia. “Each individual is going to be slightly different, but the ideal range of body fat in men is eight to 20 percent,” he says. Get below six percent and you could compromise your health.
For building muscle; follow a simple training routine that focuses on compound movements. Compound movements for weightlifting are deadlift, squat, and presses. For bodyweight training, they are burpees, push-ups, bodyweight squats, and pull-ups. These exercises are enough to train 80% of the muscles in your body. Add a few supporting exercises for the remaining muscles and you have all the exercises you need to build a great physique.
Abdominal muscles consist of three layers. The very deepest layer is the transversus abdominis, which acts as the body's girdle, providing support and stability and plays a critical role in exhalation. Next is the rectus abdominis, which flexes the spine. Closest to the surface are the internal and external obliques, which turn the trunk and provide the body with rotation and lateral movement.
Trainer tip: You know planks, right? It’s easy to go through the motions here. Don’t do it. “The key is to squeeze your entire body—quads, glutes, core, back, and fists—as tight as possible while taking diaphoretic breathes throughout the hold,” says Wealth. No matter how many times you’ve done it, this exercise is as difficult as you’re willing to make it.
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.