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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