The recipe for six-pack abs isn’t all that complicated: Crank out an abs workout, eat a nutrient-rich diet, and consume fewer late-night pizzas in a single sitting. The undisputed holy grail of men’s fitness is good for more than just an extra boost of confidence whenever you have cause to peel off your shirt, too. “The best way to avoid injury, whether in the gym, at home, or at the workplace, is by building a strong core,” says Edwin Wealth, NASM-CPT and trainer at Equinox. Want to do yoga better? Run faster? Squat heavier? Carry the groceries without wincing? It all begins with your core.
Building muscle and burning fat at the same time is the holy grail of bodybuilding but many people believe that it’s impossible. Here’s how it goes. Experienced bodybuilders first bulk then cut. Bulking is the period where they eat more calories than they burn (caloric surplus) in order to pack on muscle mass. Cutting is the period where they eat fewer calories than they burn (caloric deficit) in order to burn off the fat they inevitably gained during the bulk. The remaining muscle after bulking and cutting is their lean muscle gain.
"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."
But instead of just trying to perform as many reps as possible, slow down and really focus on the quality of the movement—especially the eccentric, or downward motion, of the exercise, he says. “The eccentric contraction is the most important phase when sculpting any muscle.” Plus, focusing on quality over quantity will help protect your back (some experts say crunches can be potentially troublesome for guys with back issues.)