Oblique Crunch

Instructions

1
Sit on a bench with feet secured under a foot pad or held by a partner. Recline back at approximately 45-60 degrees with torso supported by the bench. Keep hands crossed over chest or behind head.
2
Grip the bench sides lightly for stability. Position feet firmly under the foot pad. Engage core muscles before initiating movement. Maintain a neutral neck position throughout.
3
Slowly lower torso backward in a controlled manner by extending through the spine and abdominal region. Allow the abdominal muscles to lengthen as you recline. Stop before reaching full horizontal position to maintain tension.
4
Contract abdominal muscles and pull torso forward and upward toward knees using core strength. Return to seated upright position while maintaining controlled movement. Squeeze abdominals at the top of the movement.
PRIMARY MUSCLESRectus Abdominis
SECONDARY MUSCLESIliopsoas, Rectus Femoris, Obliques, Transverse Abdominis
EQUIPMENTBody weight
DIFFICULTYIntermediate

Overview

The Oblique Crunch is an incredibly effective Strength movement designed to fully engage the Rectus Abdominis. By utilizing Body weight, this exercise emphasizes a deep stretch and a powerful contraction, making it a cornerstone for anyone looking to optimize their Waist development.

Benefits

  • Reduces the likelihood of Waist injuries by reinforcing connective tissue strength.
  • Significantly enhances the structural integrity and power of the Rectus Abdominis.
  • Acts as a highly scalable Strength movement, perfect for both beginners and elite athletes.
  • Promotes balanced muscular development by effectively recruiting the Rectus Abdominis and associated synergists.

Common Mistakes

  • Rushing the repetition tempo instead of focusing on the mind-muscle connection with the Waist.
  • Failing to achieve a full range of motion, which drastically limits Rectus Abdominis engagement.
  • Losing core tension, leading to poor spinal alignment and reduced power output.
  • Shrugging the shoulders or compensating with secondary muscles rather than isolating the Rectus Abdominis.

Muscle Anatomy

The primary driver is the Rectus Abdominis. However, the movement also recruits Iliopsoas, Rectus Femoris, Obliques, Transverse Abdominis to maintain control of the Body weight.

Exercise Variations

  • Dumbbell Oblique Crunch
  • Cable Oblique Crunch
  • Banded Oblique Crunch

Frequently Asked Questions