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The “crunch” for abdominal is the most popular ab exercise out there. When it comes to building a “six-pack” and losing belly fat, crunches are a must. This
Best Abs: Crunch with crossed arms
تمرين البنش المائل لتقوية عضلات البطن - سبورت 360
Best abs exercises: Abdominal Crunch - Upper Abs - How to do crunch exercise
Abs Exercises: Leg Up Touch Crunch Exercise
Double Crunch : Best Ab Exercises
Best Abs: Crunch with crossed arms
AB EXERCISE - How to do weighted sit ups
Balance Crunch
Reverse crunch
How to Do: LONG ARM CRUNCHES
Vertical Leg Crunches - upper abs exercise