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Bird Dog

The bird dog is a bodyweight core stability exercise performed on all fours, where you simultaneously extend one arm and the opposite leg while maintaining a neutral spine. It suits lifters of all levels looking to build anti-rotation strength, spinal stability, and coordination between the abs and lower back.

Muscle group
Core
Primary muscles
abs, lower back
Equipment
Bodyweight

How to do the Bird Dog

  1. Start on your hands and knees with wrists under shoulders, knees under hips, and spine in a neutral position.
  2. Brace your core and slowly extend your right arm forward and left leg backward until both are parallel to the floor.
  3. Hold the extended position for 2-3 seconds while keeping your hips level and spine neutral.
  4. Return your arm and leg to the starting position with control.
  5. Repeat on the opposite side, extending your left arm and right leg.

Form tips

  • Keep your hips and shoulders square to the floor throughout the movement to prevent rotation in the torso.
  • Focus on reaching long through your extended arm and leg rather than lifting them high, which helps maintain spinal alignment.
  • Maintain a slight tuck of your chin and look down at the floor to keep your neck in line with your spine.

Common mistakes

  • Allowing the hips to rotate or drop toward the extending leg side: this reduces core engagement and defeats the anti-rotation purpose of the exercise.
  • Hyperextending the lower back by lifting the leg or arm too high: this places unnecessary stress on the lumbar spine instead of challenging core stability.
  • Rushing through reps without holding the extended position: this minimizes time under tension and reduces the balance and stability benefits.

Sets and reps

Perform 3-4 sets of 8-12 reps per side for general core strength, or 3 sets of 5-8 reps per side with longer holds for increased stability and endurance.

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Frequently asked questions

Should I feel the bird dog in my lower back?
You should feel your lower back muscles working to stabilize your spine, but not straining or cramping. If you feel excessive tension or pain in your lower back, reduce your range of motion and focus on keeping your core braced and spine neutral.
How long should I hold the extended position in a bird dog?
Hold each rep for 2-5 seconds to build stability and control. Longer holds increase the difficulty and time under tension for your core muscles.
Can I make the bird dog harder without adding weight?
You can increase difficulty by holding the extended position longer, pausing at multiple points during the movement, or performing the exercise on an unstable surface. Slowing down the tempo of both the extension and return phases also increases core demand.

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