Bird Dog Plank
Also known as: plank bird dog
- Primary muscleAbs
- EquipmentBodyweight
- DifficultyIntermediate
- TypeCore · Core stability
Extending one arm and the opposite leg from a plank shrinks your base to two points of contact, and the fight to keep the hips level is where the training effect lives. It is far harder than the kneeling bird dog because the plank denies you a stable hands-and-knees base; move slowly and pause each extension.
How to do the Bird Dog Plank
- Start in a high plank position with your hands directly under your shoulders and your body in a straight line from head to toe.
- Engage your core and squeeze your glutes to maintain a stable position.
- Lower your body down onto your forearms, one arm at a time, maintaining a straight line from head to toe.
- Hold this position for the desired amount of time, keeping your core and glutes engaged.
- To return to the starting position, push through your forearms and lift your body back up into a high plank position.
- Repeat for the desired number of repetitions.
Tip: Pull the elbows toward the toes and the toes toward the elbows without moving either to fire the whole core.
Muscles worked
Primary
Abs · Core
The abs resist the hips from sagging and should feel like they are tightening more with every exhale.
Common mistakes
- Hips sagging — squeeze the glutes and tuck the pelvis slightly so the lower back stays flat; a plank with an arched back trains nothing useful.
- Hips too high — the body should be a straight line from head to heels, so check in a mirror or have someone lay a bar along your back.
- Time over tension — a two minute plank with a loose core is worse than 30 seconds with everything braced; shorten the hold and squeeze harder.
- Holding the breath — breathe normally through the hold and keep the abs braced through each exhale.
Sets, reps and where it fits
| Goal | Sets × reps | Rest |
|---|---|---|
| Strength | 3 × 8–12 | 60 s |
| Endurance | 2–3 × 15–25 | 45 s |
Planks go at the end of a session or in the warm-up to switch the core on before squats and deadlifts. Superset a front plank with a side plank each way.
Variations and alternatives
Similar exercises
Without bodyweight
Frequently asked questions
What muscles does the Bird Dog Plank work?
The Bird Dog Plank primarily works the abs. It also involves the delts, triceps and glutes, which assist the movement and stabilise the joints.
Is the Bird Dog Plank good for beginners?
It is rated intermediate, so it suits people who already train regularly. Beginners can still do the Bird Dog Plank with light load and a spotter or coach watching the first few sessions; if it feels awkward, pick an easier variation from the alternatives below first.
What can I do instead of the Bird Dog Plank?
If you cannot do the Bird Dog Plank, try the Kneeling Forearm Plank Shoulder Tap, the Plank Rotation or the Reverse Plank Leg Raise. Each of them trains the abs through a similar movement, so you can swap them in without changing the rest of the workout.
How many sets and reps should I do?
It depends on your goal. For the Bird Dog Plank, a sensible starting point is strength: 3 × 8–12 with 60 s rest; endurance: 2–3 × 15–25 with 45 s rest. Train it at the end of a session or pair it with a lower-body lift as active rest.
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