Twist Sit-up
- Músculo objetivo
- Iliopsoas, Obliques, Rectus Abdominis
- Equipamiento
- Body weight
- Parte del cuerpo
- Waist
- Tipo
- Strength
The twist sit-up is a bodyweight core exercise that targets the rectus abdominis and iliopsoas through the sit-up motion, then adds a rotational twist at the top to directly challenge the obliques. It builds core strength, rotational stability, and abdominal endurance without any equipment, making it a practical addition to bodyweight training and sports conditioning routines.
Cómo hacer el Twist Sit-up
- 1Lie on your back with your knees bent to roughly 90° and your feet flat on the floor, hip-width apart.
- 2Cross your arms over your chest or place your fingertips lightly at your temples — do not lace your fingers behind your head.
- 3Brace your core and press your lower back gently toward the floor.
- 4Exhale and curl your torso off the floor, drawing your ribcage toward your pelvis until you are fully upright.
- 5At the top of the movement, rotate your torso to the right, driving your left shoulder toward your right knee.
- 6Return to the upright center position, then lower your torso back to the floor slowly and under control.
- 7On the next rep, rotate to the left at the top, driving your right shoulder toward your left knee.
- 8Continue alternating the direction of the twist on each rep for the desired number of repetitions.
Consejos de técnica
- Keep your knees and feet still as you rotate — if your legs shift or your knees swing across the floor, the twist is coming from your hips rather than your trunk.
- Drive the rotation from your thoracic spine, not just your arms or elbows; your opposite shoulder should travel toward the opposite knee.
- Keep your chin lightly tucked and maintain a small gap between your chin and chest throughout to protect your cervical spine.
- Exhale during the curl and twist, and inhale as you lower back to the floor to match your breathing to the effort.
- If your feet lift during the movement, anchor them under a fixed object — but be aware that anchoring shifts more load onto the iliopsoas.
Errores comunes
- Pulling on the back of your neck with clasped hands, which strains the cervical spine instead of working the abdominals — keep your hands at your temples or crossed over your chest.
- Only performing a partial curl rather than sitting fully upright, which cuts the range of motion short and limits oblique engagement at the top.
- Using momentum to swing the torso up instead of contracting the abdominals, which reduces core activation and can strain the lower back.
- Twisting only the arms or elbows rather than rotating the entire thoracic spine, which bypasses the obliques and makes the exercise far less effective.
- Rushing through reps without pausing at the top, which skips the rotational contraction that is the defining element of this exercise.
Preguntas frecuentes
What muscles does the twist sit-up work?
The twist sit-up works the rectus abdominis and iliopsoas during the sit-up phase, and then targets the obliques with the rotational twist at the top. No additional synergist muscles are involved when performed with bodyweight only.
How is the twist sit-up different from a regular sit-up?
A standard sit-up uses the rectus abdominis and iliopsoas to raise the torso but involves minimal rotation. The twist sit-up adds a deliberate twist at the top of each rep, which directly loads the obliques and adds a rotational stability demand that the standard sit-up lacks.
Should I anchor my feet when doing twist sit-ups?
You can anchor your feet for stability, but doing so increases iliopsoas involvement and reduces isolation of the rectus abdominis. Performing the exercise unanchored generally places more demand on the abdominals and is preferred when the primary goal is core development.
How many sets and reps should I do for twist sit-ups?
Three to four sets of 10–20 reps — counting each twist as one rep and alternating sides — is a practical starting range. Adjust volume based on your training level and how the exercise fits into your overall program.
Are twist sit-ups safe for people with lower back pain?
Anyone with lower back pain should consult a healthcare professional before performing sit-up variations. The hip flexor recruitment involved in the sit-up pattern can aggravate some lumbar conditions, and a qualified practitioner can advise on suitable alternatives.
