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Bodybuilding Abdominal Exercise - Crunches
Primary Muscle
Abs
Secondary Muscle
Core
Equipment Needed
Floor Mat
Mechanics Type
Isolation
Proper Exercise Technique
Lie on back with legs bent. Keep hands at ears or crossed on chest. Raise only head and shoulder blades off the ground. Don't pull head up with arms. Contract abs at top. Your chin should be tucked far enough that you could fit a tennis ball between your chin and upper chest.
Starting Crunch Exercise

Finishing Crunch Exercise

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