Eat similar meals every day. "I pretty much eat the same thing, or substitutions that are very close to my normal meal plan, every day," Yobe says of her daily food intake, which includes a protein bar before her morning workout, a protein shake afterward, and two meals including chicken or fish, veggies like a green salad or bok choy, and a carb like rice, pasta, or potatoes. She also snacks on rice cakes with peanut butter, carrots, celery, and nuts. Although she admits this can be boring, the approach makes it easier for her to get all the nutrients she needs while remaining satisfied throughout the day.
When it comes to improving core stability, the plank has your back (and your front!). By working your transverse abdominis — the deep core muscles that wrap around your middle — as well as your back, shoulders and glutes (yes, you should activate your butt, too), you get a full body burn in one isometric movement. But the best thing about planks: You can continuously switch them up and make your muscles work even more. Check out these creative twists on a typical plank routine and you’ll see what we mean.
The Torso Track comes out as number 5 for effective ab exercises, but this is one of my least favorite exercises because it can cause lower-back pain, particularly if you roll out too far. In fact, in the ACE study, researchers found that a significant number of subjects reported lower-back pain, so you may want to skip the expense, and discomfort, of this one and choose other exercises that can target the abs with equal effectiveness.
Kneel on a mat on all fours with your hands directly under your shoulders. Stretch your legs back one at a time to come into plank position (the “up” part of a push-up); engage your ab muscles. Your body should be long and straight; don’t let your hips sag or lift your butt too high. Imagine there’s a seat belt tightening around your waist, drawing your lower-ab muscles inward.
Yuri Elkaim is one of the world’s most trusted health and fitness experts. A former pro soccer player turned NYT bestselling author of The All-Day Energy Diet and The All-Day Fat Burning Diet, his clear, science-backed advice has transformed the lives of more than 500,000 men and women and he’s on a mission to help 100 million people by 2040. Read his inspiring story, “From Soccer to Bed to No Hair on My Head” that started it all.

"My goals six years ago was to 'get abs' and I used to think cardio and crunches would get me there. But it wasn’t until I started lifting weights and varying my abdominal exercises that I started to see a major change. You don’t realize how much you use your core muscles in order to perform powerful rapid movements like deadlifts!" — Shante Franca, @shantefranca

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