To do the V-sit, start in a seated position on the floor, contract your abdominal muscles and core, and lift your legs up to a 45-degree angle as pictured. Reach your arms straight forward or reach up toward your shins as you are able. Maintain good core posture and a strong spine while you hold the position for several seconds. Rest and repeat several times. As you get stronger, hold the position longer.
So let's get to it. Here are the experts' choices on the most effective abdominal exercises. These should be performed two to three times weekly (for beginners, two is plenty to start). Each exercise should be executed until the point of momentary muscular failure, which should happen between 30 and 90 seconds. This is considered one set, which should be no more than 15 to 20 repetitions. Rest for 30 to 60 seconds. Concentrate on performing each exercise slowly with good form. Work up to completing two to three sets of each exercise.

Common knowledge will tell you that, to get six-pack abs, carbs are verboten. Common knowledge is right—kind of. The key is to avoid the wrong carbs, like French fries, and eat the right carbs, like sweet potatoes. These orange goodies are full of carotenoids, which prevent calories from turning into fat; fiber, which helps you stay sated, and ultimately eat less; and Vitamin C, which’ll give you energy (for working out). And for more ab-shredding foods, check out the 10 Healthy Carbs That Won’t Derail Your Six-Pack.

So, no, the odds are not in your favor, but you can work toward a more defined midsection by developing core strength and reducing overall body fat. Although everyone responds differently to diet and exercise — and you should consult with a healthcare provider before changing things up — here are the lifestyle tips that have worked for three trainers who have particularly chiseled abs:
6-pack abs do not only look great, but they are a lot of work. It is not easy to get them and it is definitely not easy to maintain them. So we have brought to you an all-inclusive guide to get ripped abs. By all-inclusive we mean, some very important tips and an abs workout that will definitely get you the desired results. First, let us look at some pointers that we must remember:
Build a strong back and sculpt a rock-solid middle in one shot with the archer row. This ab exercise combines a staggered side plank with a dumbbell row. "As the load moves up and down, your body has to fight to resist rotation," says Gaddour. That means your entire core—lower-back muscles, obliques, rectus abdominis (also known as your six-pack muscles)—is working overtime to keep your spine stable.

How to: Lie on your left side with your legs straight and your right leg stacked on your left. Position yourself so your weight is resting on your left forearm and the outside edge of your left foot. Your elbow should be directly beneath your shoulder, and your upper arm should be perpendicular to the floor. Align your body so it forms a straight line from your neck to your ankles, and place your right hand on your hip. Lower your hips toward the ground a couple inches, then come back up to start. That’s one rep. Do 15 reps on each side.
Once you've reduced the layer of body fat to the point where you can find your six pack, performing specific ab and core strengthening exercises will make them much more visible. Once you understand how to safely exercise your abs, you'll find core exercises are most effective when the torso works as a solid unit and both front and back muscles contract at the same time, and you perform multi-joint movements.

7. Don't be disappointed if you can't achieve a well-defined six-pack. Because of your genetics and age, you may not be able to get the six-pack you want, but you can still be healthy, Hagensick says. "To be healthy, you have to have a certain percentage of fat. Some people simply have more fat than others around their midsection, but they can still improve their overall eating habits and exercise routine."
BMI vs Body Fat Percentage- Body Mass Index or BMI calculates your ideal weight in relation to your height. This isn’t a great way of determining whether someone is healthy because it completely ignores how much muscle an individual holds. A better alternative is determining your Body Fat Percentage -BFP and then take a cue from your BMI as to how healthy you are. Here’s a visual comparison of how different body fat percentages look like. You can get your BFP measured by a Bio-electrical Impedance Scale found at gyms or at a nutritionist’s clinic.
One of the best tricks for getting six-pack abs is to lose some weight, even if it’s just a few pounds. And one of the best ways to lose weight is to adhere to the 80-20 method. Since it takes your brain about 20 minutes to “catch up” to your stomach and realize that, hey, you’re full, oftentimes, you’ll eat more than you need to. So eat 80 percent of what you’d normally eat, then wait 20 minutes. If you’re still hungry, eat the remaining 20 percent of your portion. But chances are, you won’t be hungry one bit. And for more great ways to lose weight, master the 20 Techniques Successful Dieters Share.
“For me, getting a six-pack was about paying attention to what I was eating and lifting heavy weights at CrossFit. I do have a semi-strict diet, and I loosely count macros (focusing on daily carbs, protein, and fat intake rather than blindly counting calories) to stay balanced and on track. It sounds like a lot of work, but it really isn’t. Eventually, it just became a part of my lifestyle, and it’s something I enjoy doing. I even started a custom meal-plan business based on macros because I had such great results!” —Tina Haupert, @carrotsncake

ab exercises