Lying Scissor Crunch
Lying Scissor Crunch Exercise Description
The Lying Scissor Crunch is a bodyweight core exercise that combines a small spinal flexion (crunch) with a controlled scissor action of the legs. It primarily targets the rectus abdominis while the obliques assist with trunk stabilization and the hip flexors drive the leg motion. The goal is to maintain lumbopelvic control—keeping the lower back gently in contact with the floor—while the legs cross and switch. Proper technique emphasizes a posterior pelvic tilt, a neutral neck, and smooth, deliberate leg movement to minimize strain on the lumbar spine and cervical region. Use a conservative range of motion you can control without the low back lifting or the neck tensing.
- Muscle Groups: Abs, Core, Waist
- Target Muscles: Rectus Abdominis
- Assisting Muscles: Iliacus, Psoas Major, Rectus Femoris
- Stabilizing Muscles: External Obliques, Internal Obliques, Multifidus, Transversus Abdominis
- Body Area: Upper Body
- Body Parts: Core, Torso
- Body Surface: Front
- Body Symmetry: Unilateral
- Equipment: Bodyweight
- Exercise Patterns: Other
- Exercise Type: Strength
- Functional Grouping: Trunk Flexors
- Joint Involvement: Multi-joint
- Muscle Location: Stomach
- Movement Direction: Lateral
- Muscle Position: Anterior
- Gender: Female
How To Do The Lying Scissor Crunch Exercise
‘- Lie supine with legs extended and feet together; arms at your sides or fingertips lightly supporting the head (elbows wide, no pulling).
– Brace the abdominal wall, exhale, and posteriorly tilt the pelvis so the low back gently contacts the floor.
– Lift both legs until you can keep the low back down; dorsiflex the ankles and keep knees straight but not locked.
– Lift the head and shoulder blades into a small crunch; keep the gaze toward the ceiling and the neck long.
– Open the legs slightly, then cross one leg over the other at midline; switch which leg is on top each repetition.
– Keep the pelvis tucked and ribs down; move the legs in a smooth, controlled scissor without swinging.
– Breathe steadily; avoid holding your breath.
– If the low back starts to arch or the neck tenses, reduce the leg lowering depth, bend the knees slightly, or keep the head down.
– To finish, bring the legs together, lower them with control, and release the crunch.
Lying Scissor Crunch Tips
‘- Keep a gentle posterior pelvic tilt so your low back stays in contact with the floor.
– Only lift and lower your legs through a range where the low back does not lift.
– Dorsiflex your ankles and keep your knees straight but not locked.
– Place arms at your sides or use fingertips to lightly support your head with elbows wide, without pulling.
– Lift your head and shoulder blades into a small crunch, keeping your gaze toward the ceiling and your neck long.
– Open the legs slightly, then cross one leg over the other at midline, switching which leg is on top each repetition.
– Keep the pelvis tucked and ribs down as you move the legs.
– Move the legs in a smooth, controlled scissor motion without swinging.
– Breathe steadily throughout the set and avoid holding your breath.
– If your low back arches or your neck tenses, reduce how far you lower the legs, bend the knees slightly, or keep the head down.
Lying Scissor Crunch Beginner Introduction
The Lying Scissor Crunch is a floor-based, bodyweight move that blends a gentle upper-body curl with a steady, alternating leg crossover. It centers on the abs, while the side abs help steady the torso and the hip flexors move the legs through the scissor pattern. The action is small and precise rather than big and explosive, with the head and shoulders slightly lifted as the straight legs pass over and under each other.
A key theme in this exercise is control of the hips and lower spine, so the low back rests softly on the ground instead of arching up. The pelvis subtly tucks, the ribs stay quiet, and the neck remains long with the eyes oriented toward the ceiling. Breathing flows in and out through the effort, supporting tension through the mid-section. The leg path is typically modest, which can ease pressure on the lower back and neck, and many people customize the height of the legs or head position to match their current core strength. This creates a focused, equipment-free option for building coordinated strength through the front of the body.