RussianAbout this machine
Roman-chair and 45-degree back-extension setups let you train trunk extension with thigh support and fixed feet. Use them for controlled posterior-chain work, not for a deep lower-back arch. A good rep ends at a neutral body line, not at the highest possible lift.
Muscles worked
- Main load: Controlled load.
- Stabilization: trunk muscles help hold position.
- Should not hurt: joints or lower back. If they do, reduce load and check setup.
How to set up
- For the Basic Roman Chair, first check its source-listed detail: uses adjustable pads for body positioning.
- Place the bench on a level surface.
- Set the backrest or roller angle when the model allows it.
- Check that the feet and contact points do not slip.
- Prepare the implement so you do not have to change body position before the rep.
How to perform
Main exercise: trunk extension.
- On the Basic Roman Chair, perform the selected exercise only after the body position is stable.
- Keep the torso stable and avoid sliding on the bench.
- Control the implement in both phases.
- End the set before the support position breaks down.
Common mistakes
- Using the bench on an uneven or slippery surface.
- Choosing an angle that does not match the exercise.
- Sliding on the support during reps.
- Picking up the implement without a stable start position.
- Ignoring this model-specific detail: uses adjustable pads for body positioning.
Technique video
Sources: gym80.de product page for 4028; gym80.de image saved locally; video embedded from the original YouTube source. PDF data: page 109, printed page 107.