One look at the Dragon Flag shows you it’s the real deal. Body stiff, moving as a unit with reduced stability. That’s what the best core exercises do: resist movement while you’re moving. It was invented by and named after Bruce Lee, who used it in his training to enhance core strength and total-body control. […]
Original Source:
https://www.muscleandfitness.com/workouts/abs-and-core-exercises/bruce-lees-dragon-flag-is-still-one-of-the-hardest-core-exercises-ever/