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  7. Standing Twist Air Bike

Exercise guide

Standing Twist Air Bike

  • Intermediate
  • Compound
  • Timed hold
  • Back
  • Lower legs
  • Shoulders
  • Upper arms
  • Upper legs
  • Waist

This standing variation of the bicycle crunch targets the obliques and rectus abdominis through dynamic rotation while improving balance and hip flexor strength. It is an effective low-impact movement for core stability and functional rotational power.

Reviewed by the Crucible Fit team · Updated June 2026

Watch the Standing Twist Air Bike demonstrationVideo and instructions for every movement are in the Crucible Fit app.

Muscles worked

Primary

  • Abs
  • Obliques
  • Quadriceps

Secondary

  • Adductors
  • Glutes
  • Hamstrings

Equipment

  • Body weight

Setup

  1. Stand with your feet hip-width apart and a slight bend in your knees.
  2. Place your fingertips lightly behind your ears with your elbows flared out wide to the sides.
  3. Engage your core and maintain a tall, neutral spine with your gaze forward.

How to do it

  1. Exhale as you lift your right knee toward your chest while rotating your torso to bring your left elbow toward the rising knee.
  2. Inhale as you controlledly lower your foot and return your torso to the center starting position.
  3. Repeat the movement on the opposite side, lifting your left knee to meet your right elbow in a fluid, alternating pattern.
  4. Maintain a steady tempo, focusing on the contraction of the abdominal wall rather than the speed of the limbs.

Form checklist

  • Rotate from the waist and mid-back rather than just pulling your elbows forward.
  • Keep your chest open and avoid pulling on the back of your head or neck.
  • Drive your knee up toward your chest to maximize lower abdominal and hip flexor engagement.
  • Keep your standing leg stable with a 'soft' knee to maintain balance.

Pro tips

  • Focus on the mind-muscle connection by visualizing your ribcage moving toward your opposite hip bone during the twist.
  • Pause for a split second at the peak of the movement to emphasize the isometric contraction of the obliques.

Make it harder

  • Perform the movement with a slow, 3-second eccentric (lowering) phase to increase time under tension.
  • Hold a light medicine ball or weight plate at chest height to add rotational resistance.

Frequently asked

What muscles does the standing twist air bike work?
The standing twist air bike primarily targets the abs, obliques, and quadriceps, and also works the adductors, glutes, and hamstrings as secondary muscles.
What equipment do you need for the standing twist air bike?
The standing twist air bike requires no equipment — just your body weight.
Is the standing twist air bike good for beginners?
The standing twist air bike is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.

Related exercises

  • Elevated Lunge T Spine RotationIntermediate · abs, glutes, hamstrings, obliques, and quadriceps
  • Plank Walk SquatIntermediate · abs, calves, glutes, hamstrings, obliques, and quadriceps
  • Shoulder Rotation Twist Split Lunge StretchIntermediate · abs, glutes, obliques, and quadriceps
  • Squat To Overhead Reach With TwistBeginner · abs, calves, glutes, hamstrings, obliques, and quadriceps

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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