Exercise guide
Seated Side Bend On A Chair
- Intermediate
- Compound
- Rep-based
- Waist
This beginner-friendly isolation exercise targets the obliques through lateral flexion, improving spinal mobility and core stability while seated. It is particularly effective for developing mind-muscle connection with the lateral abdominal wall without stressing the lower back.
Reviewed by the Crucible team · Updated June 2026
Muscles worked
Setup
- Sit tall on a firm, armless chair with your feet flat on the floor and knees bent at 90 degrees.
- Distribute your weight evenly across both sit-bones and engage your core to maintain an upright posture.
- Let your arms hang straight down at your sides or place your hands lightly behind your head.
How to do it
- Exhale and slowly lean to one side, reaching your fingertips toward the floor by flexing your spine laterally.
- Inhale and use the obliques on the opposite side to pull your torso back to the upright starting position.
- Alternate sides for each repetition, maintaining a slow and controlled tempo (2 seconds down, 2 seconds up).
Form checklist
- Keep both glutes firmly pressed into the chair; do not let the opposite hip lift as you lean.
- Ensure your shoulders stay in line with your hips, avoiding any forward rounding or twisting of the torso.
- Keep your neck neutral, following the natural curve of your spine as you bend.
- Move strictly side-to-side as if you are sandwiched between two panes of glass.
Pro tips
- Visualize your ribcage moving closer to your hip bone on the descending side to maximize the oblique contraction.
- Pause for one second at the bottom of the movement to feel the deep stretch in the opposite side's obliques.
Make it harder
- Hold a light dumbbell or water bottle in each hand to add resistance to the lateral flexion.
- Extend both arms straight overhead to increase the lever length and the demand on the core stabilizers.
Frequently asked
- What muscles does the seated side bend on a chair work?
- The seated side bend on a chair primarily targets the obliques, and also works the erector spinae as secondary muscles.
- What equipment do you need for the seated side bend on a chair?
- The seated side bend on a chair requires no equipment — just your body weight.
- Is the seated side bend on a chair good for beginners?
- The seated side bend on a chair is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.