Half Sit-up exercise animation (Männlich)

Half Sit-up

Zielmuskel
Iliopsoas, Rectus Abdominis
Synergistenmuskeln
Obliques
Equipment
Body weight
Körperregion
Waist
Typ
Strength

The half sit-up is a bodyweight core exercise that targets the rectus abdominis and the iliopsoas (hip flexors), with the obliques assisting to stabilize the torso. Working through a partial crunch range rather than a full sit-up, it builds front-core strength with less strain on the lower back, making it a solid staple for beginners and home workouts.

Half Sit-up: So führst du sie aus

  1. 1Lie on your back on a mat with your knees bent and feet flat on the floor, hip-width apart.
  2. 2Rest your hands lightly behind your head or across your chest, keeping your elbows wide and your chin slightly tucked.
  3. 3Brace your core and flatten your lower back gently into the floor.
  4. 4Curl your head, shoulders, and upper back off the floor by contracting your abs, rising only about halfway up.
  5. 5Pause briefly at the top and squeeze your abdominals without pulling on your neck.
  6. 6Lower your upper back down under control until your shoulder blades touch the floor.
  7. 7Exhale as you curl up and inhale as you lower back down.
  8. 8Repeat for your target reps, keeping the movement smooth and controlled throughout.

Technik-Tipps

  • Move from your abs, not your neck — keep your hands relaxed so they only guide your head rather than yank it forward.
  • Keep the tempo deliberate, pausing at the top of each rep to maximize tension on the rectus abdominis.
  • Press your lower back into the floor as you curl to protect your spine and keep the work on your core.
  • Stop at the halfway point; rising no higher keeps continuous tension on the abs instead of resting on your hip flexors at the top.

Häufige Fehler

  • Pulling on your head and neck with your hands, which strains the cervical spine and shifts effort away from the abs.
  • Yanking up with momentum instead of curling slowly, which removes tension from the rectus abdominis and cheats the rep.
  • Letting the lower back arch off the floor, which loads the spine and reduces core engagement.
  • Holding your breath through the rep, which raises pressure and makes bracing harder — exhale as you crunch up.

Häufig gestellte Fragen

What muscles does the half sit-up work?

It primarily works the rectus abdominis and the iliopsoas (hip flexors), with the obliques acting as synergists to stabilize the torso through the movement.

What's the difference between a half sit-up and a full sit-up?

The half sit-up only curls your shoulders and upper back off the floor through a partial crunch range, while a full sit-up brings your whole torso up to your knees. The half version keeps tension on the abs and puts less strain on the lower back.

Is the half sit-up good for beginners?

Yes. It uses only body weight and a short range of motion, so it's an accessible way to build core strength while learning to brace and curl with control.

How many sets and reps should I do?

For most people, 2–3 sets of 12–20 controlled reps works well. Prioritize a slow, deliberate tempo over chasing high numbers.

Where should I feel the half sit-up?

You should feel it mainly in the front of your abdominals (rectus abdominis), with some work in the hip flexors and the obliques. If you mostly feel it in your neck, you're pulling with your hands instead of your core.

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