Instructions

1

Sit upright on a sturdy chair with back support, feet flat on floor, core engaged, and neutral spine alignment. Position yourself near the chair edge for proper leg extension clearance.

2

Maintain an upright torso posture with hands positioned behind head or across chest for balance. Keep one foot planted on the ground for stability while preparing the working leg.

3

Slowly lower the extended leg in a controlled manner, allowing the knee to flex gradually while maintaining tension in the quadriceps. Lower until the foot approaches the floor or reaches a comfortable range of motion.

4

Drive the leg upward by extending the knee, contracting the quadriceps to lift the foot back to starting position. Return to full knee extension at the top of the movement with a controlled tempo.

PRIMARY MUSCLESRectus Femoris

SECONDARY MUSCLESVastus Lateralis, Vastus Medialis, Iliopsoas, Sartorius

EQUIPMENTBody weight

DIFFICULTYBeginner

Overview

When programming for Rectus Femoris growth, the Sitting Air Bike on a Chair stands out as a highly efficient Strength, Cardio choice. Performing this movement with Body weight forces your stabilizer muscles to work in tandem with the primary movers, translating to functional strength and enhanced muscular endurance.

Benefits

Promotes balanced muscular development by effectively recruiting the Rectus Femoris and associated synergists.
Significantly enhances the structural integrity and power of the Rectus Femoris.
Acts as a highly scalable Strength, Cardio movement, perfect for both beginners and elite athletes.
Allows for a natural movement path that closely mimics functional daily activities.

Common Mistakes

Failing to achieve a full range of motion, which drastically limits Rectus Femoris engagement.
Using excessive momentum to swing the Body weight rather than controlling the eccentric phase.
Rushing the repetition tempo instead of focusing on the mind-muscle connection with the Waist.
Losing core tension, leading to poor spinal alignment and reduced power output.

Muscle Anatomy

The primary driver is the Rectus Femoris. However, the movement also recruits Vastus Lateralis, Vastus Medialis, Iliopsoas, Sartorius to maintain control of the Body weight.

Beginner Tips

If you are new to the Sitting Air Bike on a Chair , focus on mastering the movement pattern with zero weight before adding Body weight.

Sitting Air Bike on a Chair