What is Bird Dog Crunches?

Bird Dog Crunches are an easy calisthenics move that strengthens the core and glutes while improving spinal stability. Performed from a quadruped, extend opposite arm and leg, then draw elbow to knee with control. Focus on a neutral spine and slow reps to avoid arching the lower back.

How to Do Bird Dog Crunches

  1. Setup position: Start on hands and knees with hands under shoulders and knees under hips; maintain a neutral spine and keep hips level.
  2. Engage core: Brace your core and gently squeeze glutes, drawing the belly button toward the spine to stabilize and prevent low‑back arching.
  3. Extend opposite limb: Slowly extend your right arm forward and left leg back until aligned with the torso; avoid rotating hips or shoulders.
  4. Pause and feel: Hold the extended position 1–2 seconds, feeling glute and core activation while keeping hips square and spine neutral.
  5. Crunch to knee: Pull the extended arm and leg inward with control, bringing elbow toward knee under the torso; exhale during the crunch.
  6. Reset and repeat: Return to the starting quadruped without slamming down; perform prescribed reps then switch sides, maintaining slow, controlled movement.

Muscle Groups

Core, Glutes

Description

Start in a quadruped position. Hands under the shoulders, knees under the hips. Maintain a neutral spine throughout, and keep the hips and shoulders level.

Extend the right hand in front of you, arm straight, while simultaneously extending the left leg behind.

Pause at the top, left hip full extended. Actively reaching your leg behind, and your arm in front.
Return to the start but instead of touching the ground with your arm, touch your knee with an elbow.

Continue for the required amount of repetitions and then switch sides.

Keep a stable position throughout, avoid arching the back.
To regress, start by isolating the leg movement.
Movement Group: Core
Equipment: None (bodyweight only)

Progressions and Regressions

None

Frequently Asked Questions

What are the benefits of Bird Dog Crunches?

Bird Dog Crunches build core stability, improve lumbar support, and activate the glutes while enhancing balance and coordination. They help posture and functional movement, reduce low‑back strain risk, and require no equipment, making them suitable for beginners and rehab work.

What common mistakes should I avoid when doing Bird Dog Crunches?

Avoid arching the lower back, allowing hips to tilt, or rotating the shoulders. Common errors include moving too fast, lifting the leg too high without glute engagement, and failing to brace the core. Keep slow, controlled reps and a neutral spine.

How can I progress or regress Bird Dog Crunches?

To regress, reduce range of motion, isolate the leg movement, or keep toes on the floor. To progress, add a 2–3 second hold, increase reps, use light ankle weights or resistance bands, or perform slower, more challenging stability variations.