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  7. Seated Air Bike On A Chair

Exercise guide

Seated Air Bike On A Chair

  • Beginner
  • Compound
  • Timed hold
  • Lower arms
  • Lower legs
  • Shoulders
  • Upper arms
  • Upper legs
  • Waist

This beginner-friendly core exercise targets the rectus abdominis and obliques by mimicking a cycling motion from a seated position. It effectively builds core stability and hip flexor strength while minimizing lower back strain compared to floor-based variations.

Reviewed by the Crucible Fit team · Updated June 2026

Watch the Seated Air Bike On A Chair demonstrationVideo and instructions for every movement are in the Crucible Fit app.

Muscles worked

Primary

  • Abs
  • Obliques

Secondary

  • Erector spinae
  • Glutes

Equipment

  • Body weight

Setup

  1. Sit on the front edge of a sturdy chair or flat bench with your feet flat on the floor.
  2. Lean your torso back at a 45-degree angle while keeping your spine straight and core braced.
  3. Place your fingertips lightly behind your ears with elbows flared, or grip the sides of the chair for additional stability.

How to do it

  1. Lift both feet off the ground to the starting position with knees slightly bent.
  2. Exhale as you pull your right knee toward your chest while rotating your torso to bring your left elbow toward the incoming knee.
  3. Inhale as you switch sides in a fluid, rhythmic 'pedaling' motion, extending the right leg out as the left knee comes in.
  4. Maintain a controlled tempo, focusing on the quality of the abdominal contraction rather than speed.

Form checklist

  • Rotate through the mid-back (thoracic spine) rather than just moving your elbows.
  • Keep your chest lifted and avoid rounding your shoulders or neck forward.
  • Ensure your lower back remains stable and does not arch excessively.
  • Keep your toes pointed or feet flexed to maintain tension through the legs.

Pro tips

  • Think about bringing your shoulder toward the opposite hip, rather than elbow to knee, to maximize oblique engagement.
  • Slow down the eccentric (extension) phase of the leg movement to increase time under tension for the lower abs.

Make it harder

  • Perform the movement with straight legs to increase the lever length and difficulty for the hip flexors and lower abdominals.
  • Hold a light medicine ball at your chest and rotate it toward the active knee to add external resistance.

Frequently asked

What muscles does the seated air bike on a chair work?
The seated air bike on a chair primarily targets the abs and obliques, and also works the erector spinae and glutes as secondary muscles.
What equipment do you need for the seated air bike on a chair?
The seated air bike on a chair requires no equipment — just your body weight.
Is the seated air bike on a chair good for beginners?
Yes. The seated air bike on a chair is a beginner-friendly movement and a strong foundation to build on.

Related exercises

  • 45 Degrees Arms PlankIntermediate · abs, deltoids, obliques, and pectorals
  • Ardha Matsyendrasana Yoga PoseIntermediate · abs, glutes, obliques, and trapezius
  • Back Steps PlankIntermediate · abs, lats, and obliques
  • Bear Walk To Rolling RockIntermediate · abs, hamstrings, obliques, and trapezius

Train it with Crucible Fit.

Every movement in this library is in the app with video and instructions, ready for your own sessions on the days between Crucibles. Your first Crucible is on us.

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