Creatine works twofold. It helps your muscles retain water, which means they’ll really pop, and it gives you long-lasting energy, which means you can make it through a grueling core workout, no problem. And taking it is effortless: just drop a scoop into your water bottle next time you head to the gym. (Best Life recommends the fruit punch flavor. It’s far and away the smoothest.) And for more great workout-boosting dietary additions, check out the 50 Best Supplements on the Planet.
To do it: Lie on your back with your hands interlaced behind head, knees bent ,and feet hip-width apart on the floor. Inhale and lift your chest towards your knees, bringing your shoulders and head off the floor, maintaining a neutral pelvis (keeping it parallel to the floor). Exhale and rotate to the right side, and then exhale again rotating even further, lifting a little higher. Next, inhale and lift as you return to the center and repeat to the other side. Do 8-10 reps per side.
Bodyweight exercises always recruit more than one muscle group for each exercise so it is impossible to isolate and work one muscle group specifically by doing one type of exercise. It is however possible to increase the load targeting specific muscle groups with specific exercises so that they respond the most to the challenge. The following chart helps you find the exercise that helps focus more on specific abdominal muscle groups for best results.
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.)