Whether you're a guy or a girl, at the pool, at the beach or on stage, your abs are the first place people look to tell how fit you are. Abdominal muscles are the true marker, the core of fitness.

Cellucor Super HD Abs

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We walk you through two ab circuits to help you achieve that toned, hi-def 6-pack. One circuit is designed to build your abs, and the other is designed to tighten your abs.

We recommend incorporating these circuit workouts 3-to-4 times per week into your existing workout routines, alternating the workouts, building first and toning second.

The Build Circuit

The goal is to keep the intensity high, elevate your heart rate elevated and really get that extra burn. Set up all four exercises before you begin to increase efficiency and intensity.

3 Rounds; Repeat 4 exercises back-to-back; 1-minute rest between rounds.

Build Circuit
1
Circuit
3 rounds
Barbell Ab Rollout
3 sets, to failure
Cable Crunch
3 sets, to failure
Seated Barbell Twist
3 sets, to failure
Weighted Crunches
3 sets, to failure

Tighten Circuit

This circuit will involve more reps, some drop sets, a lot of focus on toning your abs rather than building them. High reps are going to help you tighten your abs while burning calories.

This is another 4-exercise circuit with 1-minute rests between the three circuits. Make sure to set everything up first, to limit your rest periods between exercises.

3 Rounds; Repeat 4 exercises back-to-back; 1-minute rest between rounds.



Tighten Circuit
1
Circuit
3 rounds
Plank
3 sets, to failure
Swiss Ball Pike
3 sets, to failure
Crunches
3 sets, to failure
Medicine Ball Rotational Throw
3 sets, to failure

Hi-Def Abs

Your abs are probably on fire! That's the key to getting hi-def abs.

First comes the Build Circuit, followed by the Tightening Circuit. We recommend hitting the circuits on alternating days: Build, then Tighten ... for a total of 3-to-4 workouts per week.

Make sure you have your strength training, your cardio, proper supplementation and your meal programs keyed-in to get hi-def abs. For more information on that, check the links below.

For more articles and videos, tips and tricks to achieving hi-def abs, visit Bodybuilding.com.

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