Reverse Crunch (VERSION 3)
- Músculo objetivo
- —
- Equipamiento
- Body weight
- Parte del cuerpo
- Waist
- Tipo
- Strength
The Reverse Crunch (VERSION 3) is a bodyweight core exercise that targets the waist and lower abdominals by curling the hips off the floor while the legs are extended upward or held at an angle, increasing the range of motion compared to the standard version. The extended-leg position demands greater lower-ab recruitment and trunk control throughout each rep.
Cómo hacer el Reverse Crunch (VERSION 3)
- 1Lie flat on your back on a mat with your arms at your sides, palms pressing lightly into the floor for support.
- 2Extend your legs and raise them so they are angled at roughly 45–60° from the floor, keeping a slight bend in the knees to protect the joints.
- 3Brace your core and press your lower back into the mat to establish a neutral, stable spine before you begin.
- 4Exhale and contract your lower abdominals to curl your hips off the mat, drawing your knees in toward your chest in a controlled arc.
- 5At the top of the movement, pause briefly and squeeze your abs — your hips should be fully lifted and your lower back slightly rounded.
- 6Inhale and slowly lower your hips back to the mat, then extend your legs back to the starting angle without letting your feet touch the floor.
- 7Maintain constant tension in your core throughout the set and avoid using momentum to swing the legs.
Consejos de técnica
- Press your palms or fingertips into the mat to anchor your upper body and keep the effort focused on your abs rather than your hip flexors.
- Lead the movement with your hips, not your knees — think of peeling your tailbone off the mat rather than just pulling your legs in.
- The slower the descent, the harder your abs have to work; aim for a 2–3 second lower to maximize time under tension.
- Keep your neck relaxed and your chin neutral — do not lift your head or shoulders during the curl.
- If your lower back lifts excessively or your hip flexors cramp, raise the starting leg angle closer to 90° until you build enough core strength to work lower.
Errores comunes
- Swinging the legs with momentum instead of using a deliberate ab contraction, which shifts the work away from the core and reduces effectiveness.
- Letting the lower back arch off the mat at the start of each rep, which places stress on the lumbar spine instead of loading the abs.
- Rushing the lowering phase and letting the feet drop to the floor, eliminating the eccentric tension that builds strength.
- Pulling the neck or head off the mat, which creates unnecessary strain on the cervical spine and signals that the core isn't doing enough work.
- Allowing the hip flexors to dominate by initiating the movement with a knee tuck rather than a hip curl.
Preguntas frecuentes
What muscles does the Reverse Crunch work?
The Reverse Crunch targets the waist and abdominal muscles, with emphasis on the lower portion of the rectus abdominis. Stabilizing the movement also engages the deeper core muscles throughout each rep.
How is the Reverse Crunch VERSION 3 different from a regular reverse crunch?
In a standard reverse crunch the knees are bent and tucked before the curl begins. VERSION 3 starts with the legs extended and elevated at an angle, which increases the lever arm and demands more lower-ab strength and control to initiate and complete each rep.
How many reps and sets should I do?
For core strength, 3–4 sets of 10–15 controlled reps works well. Focus on quality over quantity — slow, deliberate reps with full hip lift outperform fast, sloppy sets every time.
Can beginners do the Reverse Crunch VERSION 3?
It is more demanding than the standard version, so beginners should first master the basic reverse crunch with bent knees. Once you can perform 15 clean reps without momentum or lower-back arching, progress to the extended-leg variation.
Why do I feel this more in my hip flexors than my abs?
This usually means you are initiating with a knee pull rather than a hip curl, or your starting leg angle is too low. Try raising your legs closer to 90°, consciously brace your abs before each rep, and focus on peeling the tailbone off the mat first.
