Lying Tuck Crunch

Instructions

1
Lie supine on the floor or mat with legs extended, arms positioned behind head with hands near ears, elbows bent and pointing outward, maintaining neutral spine alignment
2
Engage core by drawing navel toward spine, ensure lower back maintains contact with floor, head remains neutral with gaze toward ceiling, legs remain straight or knees slightly bent
3
Lower the torso back toward the starting position by slowly extending and lowering legs away from body while maintaining core tension, controlling the movement to prevent lower back from arching
4
Pull legs upward and torso forward simultaneously by contracting abdominals, bringing knees toward chest and upper back off floor, creating a V-shaped body position, squeeze abs at top of movement then return to start
PRIMARY MUSCLESRectus Abdominis
SECONDARY MUSCLESIliopsoas, Rectus Femoris, Sartorius, Transverse Abdominis
EQUIPMENTBody weight
DIFFICULTYIntermediate

Overview

The Lying Tuck 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

  • Allows for a natural movement path that closely mimics functional daily activities.
  • Promotes balanced muscular development by effectively recruiting the Rectus Abdominis and associated synergists.
  • 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

  • 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.
  • Shrugging the shoulders or compensating with secondary muscles rather than isolating the Rectus Abdominis.
  • Using excessive momentum to swing the Body weight rather than controlling the eccentric phase.

Muscle Anatomy

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

Exercise Variations

  • Dumbbell Lying Tuck Crunch
  • Cable Lying Tuck Crunch
  • Banded Lying Tuck Crunch

Frequently Asked Questions