Air Bike

Air Bike Exercise Description

The Air Bike (often called the bicycle crunch) is a bodyweight core exercise that trains trunk flexion and rotation while the hips alternate between flexion and extension. Primary muscles include the rectus abdominis and the external/internal obliques, with the hip flexors assisting as the legs cycle. Done supine, it emphasizes maintaining a neutral neck and a posterior pelvic tilt so the lower back stays lightly in contact with the floor. The alternating pattern challenges coordination and trunk control without external load. Keep movements smooth and controlled to minimize momentum and place the work on the abdominal wall.

Muscle Groups: Abs, Core, Obliques, Waist
Target Muscles: External Obliques, Internal Obliques, Rectus Abdominis
Assisting Muscles: Iliacus, Psoas Major, Rectus Femoris
Stabilizing Muscles: Multifidus, Quadratus Lumborum, Transversus Abdominis
Body Area: Upper Body
Body Parts: Core, Torso
Body Surface: Front, Side
Body Symmetry: Unilateral
Equipment: Bodyweight
Exercise Patterns: Other
Exercise Type: Strength
Functional Grouping: Trunk Flexors, Trunk Lateral Flexors, Trunk Rotators
Joint Involvement: Multi-joint
Muscle Location: Deep Side Abs, Side Abs, Stomach
Movement Direction: Rotational
Muscle Position: Anterior, Lateral
Gender: Male

How To Do The Air Bike Exercise

‘- Lie supine with knees bent and feet on the floor. Lightly place fingertips behind ears; elbows stay wide.
– Draw ribs down and gently posteriorly tilt the pelvis so the low back contacts the floor.
– Lift both feet to tabletop: hips and knees near 90 degrees.
– Brace the abdomen and lift shoulder blades just off the floor without pulling on the head. Keep a fist-width space between chin and chest; gaze up.
– Extend the right leg on a shallow diagonal while rotating the ribcage left, bringing the right shoulder toward the left knee. Lead with the shoulder, not the elbow.
– Pause briefly, keeping the low back down and elbows wide.
– Switch: bend the right leg back to tabletop as you extend the left leg, rotating the ribcage right to bring the left shoulder toward the right knee.
– Continue alternating with a smooth cadence. Exhale during each rotation; inhale through the transition.
– Keep range of motion only as long as the low back stays down; raise the extended leg higher if the back starts to arch.
– Maintain controlled movement throughout. Avoid yanking the neck, flaring the ribs, or rushing the “cycling” action.

Air Bike Tips

‘- Before you start moving, draw the ribs down and gently posteriorly tilt the pelvis so the low back contacts the floor.
– Lightly place fingertips behind the ears and keep elbows wide rather than pulling the head forward.
– Maintain a fist-width space between the chin and chest and keep your gaze up to hold a neutral neck.
– Brace the abdomen and lift the shoulder blades just off the floor instead of trying to sit all the way up.
– As you extend a leg, send it out on a shallow diagonal rather than dropping it straight down.
– Rotate the ribcage so the shoulder moves toward the opposite knee, leading with the shoulder instead of the elbow.
– Keep the low back down as the legs cycle; raise the extended leg higher if your back starts to arch.
– Pause briefly at each twist to minimize momentum and keep the work on the abdominal wall.
– Exhale during each rotation and inhale during the transition between sides.
– Use a smooth, controlled cycling cadence instead of rushing the movement.

Air Bike Beginner Introduction

The Air Bike (often called the bicycle crunch) is a core-focused bodyweight movement performed lying on the back. It blends a small curl of the upper body with a twisting action through the midsection, while the legs move in a cycling pattern. This combination targets the abs and side abs, with the hip flexors helping as the knees and hips bend and straighten in turn. Because everything happens without added resistance, the challenge comes from body control rather than heavy loading.

During each repetition, one leg lengthens while the opposite knee lifts, and the trunk turns so the opposite shoulder moves toward that knee. The lower back stays gently anchored against the floor, and the head and neck remain supported by the upper ab curl instead of the hands. A steady breathing rhythm and a measured tempo place the effort on the abdominal wall rather than on momentum, encouraging precise, coordinated movement through the torso.