The crunch is a classic exercise for training the abdominal muscles. The diagonal crunch activates the lateral abdominal muscles (obliquus abdominis) more than the normal crunch.
Lie on your back on the floor and keep your legs bent. Keep your feet on the floor. Place your hands behind your head.
2
Bend your upper body toward your knee by tensing your abdominal muscles and turn to the left. Your right elbow should move diagonally toward your left knee. Exhale as you do this.
3
Slowly lower your upper body back to the starting position. Keep your abdominal muscles tense even in the lowest position. Breathe in as you do this.
4
You have now completed one repetition with your left hand. Repeat this process with your right hand until you have completed the specified number of repetitions with both hands.
Tip
Your lower back is in contact with the floor throughout the exercise. Do not rest your head on the floor in the lowest position. Your abdominal muscles are tensed throughout the exercise.
Muscle groups
Primary
Abs (lateral)
Secondary
Abs
Tertiary
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Equipment
Body weight
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