Exercise guide
Sitting Air Bike On A Padded Stool
- Intermediate
- Compound
- Timed hold
- Lower legs
- Shoulders
- Upper arms
- Upper legs
- Waist
This seated core variation targets the rectus abdominis and obliques through dynamic rotation while engaging the hip flexors and quadriceps to stabilize the legs. It is an effective functional movement for improving rotational power and midsection definition without the back strain sometimes associated with floor exercises.
Reviewed by the Crucible Fit team · Updated June 2026
Muscles worked
Setup
- Sit on the edge of a stable, padded stool or bench with your feet flat on the floor.
- Lean your torso back to a 45-degree angle, engaging your core to maintain a straight spine.
- Place your fingertips lightly behind your ears with elbows flared out wide.
- Lift both feet off the floor slightly, balancing on your sit bones to create initial tension in the abs.
How to do it
- Exhale and pull your right knee toward your chest while rotating your torso to bring your left elbow toward that knee.
- Inhale as you return to the starting lean-back position, keeping your feet elevated off the ground.
- Immediately repeat the movement on the opposite side, bringing your left knee toward your right elbow in a fluid, pedaling motion.
- Continue alternating sides at a controlled, rhythmic tempo, ensuring the core remains braced throughout.
Form checklist
- Rotate from the mid-back and waist rather than just pulling your elbows forward.
- Keep your chest open and avoid tucking your chin or pulling on your neck.
- Maintain the 45-degree lean-back angle to keep the abdominals under constant tension.
- Fully extend the non-tucking leg straight out to maximize hip flexor and lower ab engagement.
Pro tips
- Focus on the 'rib-to-hip' connection: try to bring the bottom of your ribcage toward the opposite hip bone during every twist.
- Point your toes and squeeze your quadriceps on the extended leg to increase the total-body tension and stability.
Make it harder
- Hold a light medicine ball or weight plate against your chest to increase the rotational load on the obliques.
- Slow the tempo down to a 3-second count per 'pedal' to increase time under tension.
Frequently asked
- What muscles does the sitting air bike on a padded stool work?
- The sitting air bike on a padded stool primarily targets the abs and obliques, and also works the deltoids and triceps as secondary muscles.
- What equipment do you need for the sitting air bike on a padded stool?
- The sitting air bike on a padded stool requires no equipment — just your body weight.
- Is the sitting air bike on a padded stool good for beginners?
- The sitting air bike on a padded stool is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.