Exercise guide
Floating Run On Chair
- Beginner
- Compound
- Timed hold
- Lower legs
- Upper legs
- Waist
This seated core exercise builds abdominal strength and hip flexor endurance by simulating a running motion while suspended. It challenges the obliques and quadriceps as you stabilize your torso against the momentum of your legs.
Reviewed by the Crucible team · Updated June 2026
Muscles worked
Setup
- Sit on the very edge of a sturdy, non-rolling chair with your feet flat on the floor.
- Grip the sides or front of the seat firmly with both hands for stability.
- Lean your torso back slightly (about 45 degrees) while keeping your spine neutral and chest lifted.
How to do it
- Lift both feet off the floor to find your balance on your sit bones.
- Drive one knee toward your chest while extending the other leg straight out, keeping it hovering just above the floor.
- Rapidly switch leg positions in a 'running' motion, exhaling sharply as each knee comes toward the chest.
- Maintain a steady, controlled tempo, ensuring your feet never touch the ground throughout the entire set.
Form checklist
- Keep your chest proud and avoid rounding your lower back.
- Engage your core to prevent your torso from rocking back and forth as your legs move.
- Keep your shoulders relaxed and away from your ears.
- Ensure your feet stay 'floating' and do not tap the floor between repetitions.
Pro tips
- Focus on pulling the knee in using your lower abdominals rather than just your hip flexors.
- To increase oblique engagement, perform a slight, controlled torso twist toward the incoming knee.
Make it harder
- Remove your hands from the chair and hold them out to your sides or behind your head to increase the balance challenge.
- Slow down the tempo significantly to increase time under tension for the core and quadriceps.
Frequently asked
- What muscles does the floating run on chair work?
- The floating run on chair primarily targets the abs and obliques, and also works the glutes and hamstrings as secondary muscles.
- What equipment do you need for the floating run on chair?
- The floating run on chair requires no equipment — just your body weight.
- Is the floating run on chair good for beginners?
- Yes. The floating run on chair is a beginner-friendly movement and a strong foundation to build on.