The bird dog is a core stability exercise performed on hands and knees. You extend one arm and the opposite leg while keeping your trunk still, then return and switch sides.
| Quick Guide | Starting Point |
|---|---|
| Main movement | Opposite arm and leg extension from hands and knees |
| Main target muscles | Abdominals, lower back, glutes, shoulder stabilizers |
| Beginner prescription | 2 sets of 6–8 repetitions per side |
| Rest | About 60 seconds between sets |
| Frequency | Start with 1–3 core-focused sessions per week |
| Most useful cue | Move your limbs while keeping your trunk quiet |
These are starting suggestions, not a prescription tested for every reader. If you have wrist, shoulder, or back pain, get individualized advice before starting.
How to Do a Bird Dog
- Start on your hands and knees with your hands under your shoulders and knees under your hips.
- Gently firm your midsection so your back stays flat like a tabletop.
- Extend your right arm forward and your left leg backward at the same time.
- Stop before your back arches or your hips twist open.
- Return to the starting position and repeat on the opposite side.
Which Muscles Does the Bird Dog Work?
The bird dog primarily trains your abdominals and lower back as stabilizers. Your glutes help lift your leg, and your shoulder stabilizers help control your arm.
What Are the Benefits of Bird Dogs?
- Teach opposite-limb control while your trunk stays still.
- Require only floor space and no equipment.
- Can be made easier or harder by adjusting limb height and hold time.
Which Mistakes Should You Fix First?
| What You Notice | What to Try |
|---|---|
| Your back arches when you lift your limbs | Reduce the height of your arm and leg lift |
| Your hips twist open to one side | Keep your hips facing the floor and your back steady |
| You lose balance and wobble | Lift one limb at a time first, then combine them |
| You rush the movement | Use roughly three seconds for each extension and return |
Progressions and Regressions
| Level | Option | How to Do It |
|---|---|---|
| Easier | Arm-only or leg-only lift | Lift just your arm, then just your leg, before combining them. |
| Standard | Bird dog | Extend opposite arm and leg with a steady back. |
| Harder | Paused bird dog | Hold the extended position for two to three seconds. |
| Harder | Longer hold | Work up to holding each side for 10 seconds with good form. |
Bird Dog vs Dead Bug
| Feature | Bird Dog | Dead Bug |
|---|---|---|
| Position | Hands and knees | Lying on your back |
| Movement | Opposite arm and leg extend away from body | Opposite arm and leg extend away from body |
| Main challenge | Balance and anti-rotation on hands and knees | Anti-extension of the lower back on the floor |
| Best for | Learning trunk control from a quadruped position | Practicing limb movement with back support from the floor |
How Many Sets and Reps?
Start with 2 sets of 6–8 repetitions per side. Rest about 60 seconds between sets. Gradually add repetitions or a pause when the movement feels stable.
Frequently Asked Questions
What muscles does the bird dog work?
The bird dog primarily trains your abdominals, lower back, glutes, and shoulder stabilizers. It teaches opposite-limb control while keeping your trunk steady.
Can beginners do bird dogs?
Yes. The bird dog is a beginner-friendly core exercise performed on hands and knees. Start with very small limb movements and progress as your balance improves.
How many bird dog repetitions should I do?
Start with 2 sets of 6–8 repetitions per side. Rest about 60 seconds between sets. Add repetitions or a pause at the end range once the movement feels stable.
What if my back arches during bird dogs?
Reduce the height of your arm and leg lift. Keep your back flat like a tabletop and stop before your spine changes position.
What is the difference between bird dog and dead bug?
A bird dog is performed on hands and knees and extends opposite arm and leg. A dead bug is performed lying on your back and extends opposite arm and leg. Both train opposite-limb control with a steady trunk.
Can I do bird dogs every day?
Start with one to three core-focused sessions per week. Your core also works during many other exercises, so daily bird dogs are not necessary.
How do I progress bird dogs without equipment?
Add a pause at the end range, slow the tempo, extend your limbs farther, or add repetitions within good form.
References
- American College of Sports Medicine. 2026 resistance-training guidelines announcement. March 17, 2026. Official summary.
- NHS. How to improve your strength and flexibility. Reviewed July 21, 2026. Guidance.