Sit up with Chair Assisted
- Zielmuskel
- Rectus Abdominis
- Synergistenmuskeln
- Obliques
- Equipment
- Body weight
- Körperregion
- Waist
- Typ
- Strength
The sit-up with chair assisted is a bodyweight strength exercise that primarily targets the rectus abdominis, with the obliques acting as synergists. Hooking the feet under a chair provides a stable anchor that allows you to focus on controlled trunk flexion throughout the full range of motion. It is well suited for beginners building foundational core strength or for anyone who needs foot support to perform a full sit-up with proper form.
Sit up with Chair Assisted: So führst du sie aus
- 1Place a sturdy chair on a non-slip surface and sit on the floor in front of it, facing away from the seat.
- 2Slide your feet under the front legs or the bottom rung of the chair so your ankles are securely anchored.
- 3Lie back on the floor with your knees bent at roughly 90 degrees and your feet flat.
- 4Cross your arms over your chest or place your fingertips lightly at your temples — do not pull on your neck.
- 5Exhale and contract your rectus abdominis to curl your torso upward, leading with your chest rather than your head.
- 6Continue rising until your torso is upright and your forearms are near your thighs.
- 7Pause briefly at the top, keeping tension in your core.
- 8Inhale and lower your torso back to the floor under control, vertebra by vertebra, until your shoulder blades touch the floor.
- 9Complete the desired number of repetitions before removing your feet from under the chair.
Technik-Tipps
- Initiate each rep by contracting your abdominals rather than jerking your head or shoulders forward.
- Keep your chin slightly tucked so there is a fist-width of space between your chin and chest throughout the movement.
- Control the descent — lowering slowly increases time under tension for the rectus abdominis.
- Keep your lower back in contact with the floor at the start of each rep before you begin the curl.
Häufige Fehler
- Pulling on the neck or head with the hands, which transfers load away from the abdominals and strains the cervical spine.
- Using momentum to swing the torso up rather than contracting the core, which reduces the training stimulus and can cause lower back strain.
- Allowing the lower back to arch excessively off the floor at the bottom of each rep, which reduces core engagement and increases spinal stress.
- Letting the feet slip out from the chair anchor mid-set, which disrupts the movement pattern and can cause a sudden loss of control.
- Rushing through the lowering phase, which eliminates the eccentric challenge to the rectus abdominis and reduces overall effectiveness.
Häufig gestellte Fragen
What muscles does the sit-up with chair assisted work?
The primary muscle targeted is the rectus abdominis. The obliques act as synergists, assisting with trunk stabilization and rotation throughout the movement.
Why use a chair for sit-ups instead of doing them without support?
Anchoring the feet under a chair provides stability that helps beginners complete the full range of motion with better control. It also allows you to focus on the core contraction rather than balancing, which can be useful during high-repetition sets or when fatigue limits unassisted form.
Is the sit-up with chair assisted suitable for beginners?
Yes. The foot anchor makes it easier to maintain technique during a full sit-up, making it a practical entry point for people building core strength before progressing to unassisted variations.
How is this exercise different from a standard crunch?
A crunch only lifts the shoulder blades off the floor, targeting the upper portion of the rectus abdominis through a short range of motion. The chair-assisted sit-up takes the torso through a full range of motion — from lying flat to upright — engaging the rectus abdominis across a longer arc.
Can this exercise cause lower back pain?
Performed with good technique — controlled descent, no excessive lumbar arch, and no jerking — it is generally safe. However, people with existing lower back issues should consult a healthcare professional before including full sit-ups in their training.
