Twisting Crunch (arms straight)
- Músculo objetivo
- Obliques, Rectus Abdominis
- Equipamiento
- Body weight
- Parte del cuerpo
- Waist
- Tipo
- Strength
The twisting crunch (arms straight) is a bodyweight core exercise that targets the obliques and rectus abdominis by combining a standard crunch with a rotational component. Keeping your arms extended forward increases the lever length and the demand on your core, making it more challenging than a traditional crunch. It is well suited for building rotational strength and improving definition through the entire abdominal wall.
Cómo hacer el Twisting Crunch (arms straight)
- 1Lie on your back with your knees bent and feet flat on the floor, hip-width apart.
- 2Extend both arms straight out in front of you, palms facing inward, so your fingertips point toward the ceiling.
- 3Press your lower back gently into the floor and brace your core.
- 4Exhale and curl your upper back off the floor, reaching your arms forward and rotating your torso so your right hand moves toward your left knee.
- 5Hold the top position for a brief pause, keeping your arms straight and your shoulders lifted off the mat.
- 6Slowly lower yourself back to the starting position under control.
- 7On the next rep, rotate to the opposite side, reaching your left hand toward your right knee.
- 8Alternate sides for the desired number of reps, maintaining a steady tempo throughout.
Consejos de técnica
- Keep your chin off your chest — imagine holding a tennis ball under your chin to maintain a neutral neck position.
- Drive the movement from your abs and obliques rather than pulling with your arms or jerking your head forward.
- To make it harder, extend your arms overhead alongside your ears; to make it easier, bring your hands to your chest — both change the lever without changing the movement.
- Control the lowering phase; resist the urge to drop back to the floor quickly between reps.
Errores comunes
- Bending the elbows mid-rep, which shortens the lever and reduces the challenge on the core.
- Using momentum to swing the torso up instead of contracting the abs, which limits muscle engagement and can strain the neck.
- Lifting the lower back off the floor and crunching from the hip flexors rather than the abs.
- Rotating only the arms and shoulders without actually rotating the torso, which bypasses the obliques entirely.
- Holding your breath throughout the set, which increases intra-abdominal pressure unnecessarily — exhale on the way up.
Preguntas frecuentes
What muscles does the twisting crunch (arms straight) work?
It primarily targets the obliques and rectus abdominis. The rotational component emphasizes the obliques, while the crunch motion engages the rectus abdominis along the full length of the movement.
Why keep the arms straight instead of behind the head?
Extending the arms straight out increases the resistance arm, so your core has to work harder to lift and rotate your upper body compared to placing your hands behind your head.
How many reps should I do per set?
For most people, 12–20 reps per set (counting each side as one rep) is an effective range. Prioritize full range of motion and controlled tempo over high rep counts.
Is the twisting crunch safe for people with lower back pain?
If you have lower back issues, consult a healthcare professional before adding rotational crunch variations. Keeping the lower back pressed into the floor and avoiding momentum reduces spinal stress, but individual tolerance varies.
How is the twisting crunch different from a bicycle crunch?
The bicycle crunch involves alternating leg drives and a bent-arm position, while the twisting crunch (arms straight) keeps the feet planted and focuses purely on upper-body rotation with an extended-arm lever.
