Instructions

1

Lie supine (face-up) on your back with legs extended on the floor, arms positioned at sides or across chest for support

2

Engage core muscles and prepare to lift legs by flexing at the hip joint while keeping lower back pressed against the floor

3

Slowly lower legs toward the floor in a controlled manner, maintaining tension in the abdominal muscles throughout the descent phase without allowing lower back to arch

4

Drive legs upward using abdominal and hip flexor muscles to return to starting position with legs extended, squeezing abs at the top of the movement

PRIMARY MUSCLESRectus Abdominis

SECONDARY MUSCLESIliopsoas, Rectus Femoris, Sartorius

EQUIPMENTBody weight

DIFFICULTYIntermediate

Overview

Athletic trainers and bodybuilding coaches frequently recommend the Reverse Crunch because it challenges the Rectus Abdominis through a dynamic range of motion. By relying on Body weight, it reinforces proper movement patterns and builds robust strength in the Waist region.

Benefits

Improves overall Waist stability and proprioception during heavy loads.
Significantly enhances the structural integrity and power of the Rectus Abdominis.
Reduces the likelihood of Waist injuries by reinforcing connective tissue strength.
Acts as a highly scalable Strength movement, perfect for both beginners and elite athletes.
Utilizes Body weight to create sustained mechanical tension, forcing deep muscle adaptation.

Common Mistakes

Failing to achieve a full range of motion, which drastically limits Rectus Abdominis engagement.
Using excessive momentum to swing the Body weight rather than controlling the eccentric phase.
Rushing the repetition tempo instead of focusing on the mind-muscle connection with the Waist.

Pro Tips

If you feel this primarily in your joints rather than the Rectus Abdominis, instantly lower the weight and readjust your Body weight setup.

Muscle Anatomy

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

Reverse Crunch