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Bird Dog (Advanced)

The advanced bird dog adds a moving middle: after the reach, elbow and knee sweep together beneath the torso before extending again, all without touching down or tipping the hips. It converts the static classic into a slow, loaded control drill for the whole deep-core system. Coached by Maddy (NASM-CPT) — these are the exact form cues he gives on every client's first week.

Muscles worked

Deep core · transverse abdominis Lower back · erector spinae Glutes · gluteus maximus Rear shoulders · posterior deltoid

Sets & reps by goal

GoalSets × RepsRest
Strength3 × 3–6 per side (pause at both ends)90 s
Muscle3 × 9–12 per side60–90 s
Endurance2 × 18–27 per side60 s

Rep ranges per Helms 2014 · Schoenfeld 2016.

Level — Advanced

Advanced within its family — the balance demand, not the strength demand, is what filters people out.

Proper form — 5 cues

  1. From full extension, draw the elbow and opposite knee toward each other under your body.
  2. Round the upper back slightly as they meet, then re-extend to a dead-flat line.
  3. Keep the moving hand and foot off the floor for the entire set.
  4. Move at a crawl — 3 seconds out, 3 seconds in, every rep.
  5. Level hips and square shoulders remain the law from first rep to last.

Breathing: Exhale drawing elbow and knee together, inhale re-extending to the long line.

The 3 mistakes Maddy corrects most

Touching the knee down between reps. Each touch is a mini-rest that drains the continuous-tension purpose of the advanced version. Fix: Shorten the set to what you can do untouched — six honest reps beat twelve interrupted ones.
Whipping the elbow-knee crunch. The fast sweep swaps oblique control for momentum right at the drill's hardest moment. Fix: Pause for one second at the meeting point under your torso before extending again.
Losing the flat line on re-extension. Fatigue makes the back arch and the leg overshoot upward, unloading the glute and loading the spine. Fix: End the rep at torso height every time; film one set to calibrate what level feels like.

Common questions

What does the elbow-to-knee version add?

Motion under control. The standard bird dog holds one still position; this version cycles between full extension and full flexion while balance and anti-rotation demands stay live throughout. The obliques and deep abdominals work far harder through the moving middle, and the balance challenge roughly doubles because you never touch down.

When am I ready for the advanced bird dog?

When the standard version is boring — specifically, when you can hold each extension five seconds with level hips, eyes closed, and no wobble. If the static hold still shakes, adding movement will only rehearse sloppy patterns. Most people need several weeks of the classic before this one earns its place.

How slow should the movement be?

Slower than feels natural — around three seconds each direction with a genuine pause at both ends. The tempo is the intensity dial: this drill has no external load, so control under slowness is where the difficulty lives. If you find yourself speeding up to finish reps, the set already ended.

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Easier: Bird Dog

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