Extra Crunch Workout [ FULL ] by #DAREBEE (opens in new tab)

Extra Crunch takes one simple exercise and makes it harder through repetition\. Because the rest periods are short, your abs have to keep working before they have fully recovered\. That is what makes this more than just a floor add-on\. Each round of crunches becomes a test of core endurance - your abs have to keep contracting with control, while your neck, hip flexors and momentum stay out of it\. Focus on curling your ribs toward your hips rather than pulling your head forward, and keep eac...