Core · Anti-extension
Dragon Flags
The dragon flag is an advanced core exercise where you lie on a bench, grip behind your head, and lift your body into a straight line supported only by your upper back. You then lower your rigid body slowly towards the bench. It trains the entire abdominal wall to resist extension under a very long lever.
Also known as: Dragon flag, Bruce Lee dragon flag, Dragon flag exercise, Dragon flag progression
- Muscle group
- Core
- Movement pattern
- Anti-extension
- Type
- Compound
- Equipment
- Flat bench, Sturdy anchor to grip
- Difficulty
- Advanced
What muscles does the dragon flags work?
Primary movers
- Rectus abdominis
- Transverse abdominis
- Obliques
Assisting muscles
- Latissimus dorsi
- Hip flexors
- Gluteus maximus
In a dragon flag, your whole body from shoulders to toes acts as a single lever. The abs must stop that lever from sagging at the hips as you lower, which makes it one of the hardest anti-extension exercises.
The lowering phase is where the training happens. The abs work eccentrically to resist gravity, and the strength gained carries over to other demanding core and gymnastics skills.
The lats work hard to anchor the upper body against the bench, pulling down on the handles to keep the shoulders fixed.
The glutes stay squeezed to keep the hips extended and the body straight. Letting them relax causes the hips to bend, which shortens the lever and makes the exercise easier.
How to do the dragon flags
Setup
- 1
Lie on a flat bench with your head near one end.
- 2
Reach overhead and grip the bench behind your head or a sturdy fixed anchor.
- 3
Brace your abs and squeeze your glutes.
Execution
- 1
Lift your legs and hips up until your body is nearly vertical, supported on your upper back.
- 2
Straighten your body so it forms a line from shoulders to toes.
- 3
Slowly lower your body as one unit, keeping it straight.
- 4
Lower until your body hovers just above the bench, or as far as you can control.
- 5
Lift back up while keeping the body rigid, or bend at the hips to return if you are building strength.
- 6
Lower over three to five seconds on every rep.
Common dragon flags mistakes
Bending at the hips
Letting the hips bend as you lower, which shortens the lever and reduces the difficulty.
The fix: Squeeze the glutes and keep a straight line from shoulders to toes.
Arching the lower back
Letting the lower back arch near the bottom, which puts strain on the spine.
The fix: Lower only as far as you can control with a neutral spine.
Supporting on the neck
Rolling too far onto the neck instead of the upper back, which strains the neck.
The fix: Keep your weight on your upper back and shoulders, not your head or neck.
Dropping fast
Lowering quickly, which removes the eccentric benefit and risks losing control.
The fix: Lower slowly over at least three seconds.
How many sets and reps?
| Goal | Sets | Reps | Load | Rest |
|---|---|---|---|---|
| Core strength | 3–4 | 3–6 | Bodyweight, slow lowering | 90 s–2 min |
| Eccentric progression | 3 | 3–5 negatives | Bodyweight, 5 s lowering | 2 min |
| Building up | 3 | 5–8 | Tuck or single-leg dragon flag | 90 s |
Dragon flags are an advanced skill and should be built up gradually. Master hollow holds and hanging leg raises first, then progress through tuck dragon flags and slow negatives. Low reps with long rests suit this exercise. Train it at the start of a session when you are fresh.
Running the dragon flags in your next block? Hercules logs every set, shows last session's numbers before you lift, and suggests when to add weight.
Get it on Google PlayDragon Flags variations and alternatives
Tuck Dragon Flag
EasierBending the knees shortens the lever, making the movement easier to control.
Dragon Flag Negative
EasierLowering slowly from the top and returning by bending the hips builds strength for the full move.
Hollow Body Hold
EasierBuilds the anti-extension base needed for dragon flags.
Hanging Leg Raise
AlternativeAnother advanced core exercise that builds strong abs.
Frequently asked questions
What muscles do dragon flags work?
The entire abdominal wall, including the rectus abdominis, transverse abdominis and obliques. The lats anchor the upper body, and the glutes and hip flexors help hold the body straight.
How do I progress to a dragon flag?
Start with hollow holds and hanging leg raises. Then try tuck dragon flags and slow negatives. Gradually straighten your legs as you get stronger.
Are dragon flags safe?
They are safe for people with strong cores who progress gradually. Avoid them if you have current back or neck pain, and never let your lower back arch.
Why are dragon flags so hard?
Your body acts as a long lever, which multiplies the load on your abs. Only a strong core can hold the body straight as it lowers.
Who invented the dragon flag?
The exercise is widely associated with Bruce Lee, who popularised it as part of his training.
Hercules tracks every dragon flags you log, shows you last session's numbers before you lift, and flags when your progress stalls.
Get it on Google Play