Groin Crunch
Groin Crunch Exercise Description
The groin crunch is a bodyweight trunk‑curl that primarily targets the rectus abdominis. It’s performed supine with the soles of the feet together and the knees relaxed outward (a “butterfly” or groin‑open position), which helps keep the movement focused on curling the rib cage toward the pelvis rather than pulling with the neck or hips. The obliques assist as stabilizers while the deep core braces to maintain a controlled lumbar position. Unlike a sit‑up, the goal is a small, precise spinal flexion—lifting the head, shoulders, and shoulder blades just off the floor—while keeping the pelvis quiet. Use smooth breathing and deliberate control to emphasize abdominal tension and clean movement quality.
- Muscle Groups: Abs, Core, Waist
- Target Muscles: Rectus Abdominis
- Assisting Muscles: External Obliques, Internal Obliques
- Stabilizing Muscles: Multifidus, Transversus Abdominis
- Body Area: Upper Body
- Body Parts: Core, Torso
- Body Surface: Front
- Body Symmetry: Other
- Equipment: Bodyweight
- Exercise Patterns: Other
- Exercise Type: Strength
- Functional Grouping: Trunk Flexors
- Joint Involvement: Single-joint
- Muscle Location: Stomach
- Movement Direction: Vertical
- Muscle Position: Anterior
- Gender: Female
How To Do The Groin Crunch Exercise
‘- Lie on your back on a mat. Bring the soles of your feet together and let your knees fall out comfortably; heels a comfortable distance from the hips.
– Set your trunk: lightly tuck the pelvis so the lower back is gently in contact with the floor; draw the ribs down without holding your breath.
– Hand position: fingertips at temples or arms crossed on chest. Keep elbows wide; avoid pulling on the head.
– Neck and gaze: keep a “long neck,” chin slightly tucked, eyes aimed between ceiling and knees.
– Exhale and curl the rib cage toward the pelvis, lifting head, shoulders, and shoulder blades off the floor. Think sternum moving toward pubic bone.
– Pause briefly with abdominals braced; keep pelvis still and knees relaxed outward.
– Inhale and lower with control, keeping the lower back lightly anchored.
– Maintain even breathing, a small range, and a smooth tempo. If you feel neck strain, switch to arms crossed or place hands by your sides and refocus on curling from the trunk.
Groin Crunch Tips
‘- Let the soles of your feet touch and knees relax outward to help focus the curl on your trunk.
– Lightly tuck your pelvis so your lower back stays in gentle contact with the floor.
– Draw your ribs down without holding your breath to set your trunk before you start curling.
– Keep elbows wide and avoid pulling on your head when your fingertips are at your temples.
– Maintain a “long neck” with a slight chin tuck and gaze between the ceiling and your knees.
– As you exhale, think of your sternum moving toward your pubic bone to lift head, shoulders, and shoulder blades.
– Keep your pelvis quiet and knees relaxed outward as you curl up and pause.
– Inhale as you lower with control, keeping your lower back lightly anchored to the floor.
– Use a small range of motion with smooth, even breathing and a steady tempo.
– If you feel neck strain, switch to arms crossed or hands by your sides and refocus on curling from the trunk.
Groin Crunch Beginner Introduction
The groin crunch is a bodyweight core exercise performed lying on the back, using a relaxed, open-leg posture with the soles of the feet together. This setup encourages the effort to come mainly from the abs, rather than from the hips or neck, as the upper body gently curls off the floor. Only a short lift of the head, shoulders, and upper back is involved, emphasizing controlled movement over big repetitions or momentum.
Throughout the motion, the abs handle the main work while the side abs and deeper core muscles contribute to stability, especially around the lower back. The pelvis remains steady, so the spine bends mostly through the midsection, giving the front of the torso a very focused challenge. Calm, steady breathing supports the controlled tempo, helping the movement feel precise and deliberate. This makes the exercise well suited to anyone interested in practicing careful, high‑quality ab work with minimal equipment—just bodyweight and a comfortable surface.