Flying Knee
Vliegende knie · 飛び膝蹴り · เข่าลอย
The flying knee launches both feet off the floor and drives the knee into the head or upper body. It is a genuinely high-risk technique with a genuinely high reward: it carries the fighter's entire bodyweight into a small, hard striking surface, and it arrives at head height from an opponent who was watching the hands.
The conditions for it are narrow and specific. It works against an opponent moving forward — because the two closing speeds add — and against one whose head is dropping, whether from a level change, a slip or fatigue. It does not work as a lead against a fighter holding distance, because a jumping fighter cannot adjust range mid-flight.
The risk is total commitment. A missed flying knee lands the fighter off balance, inside range, with the hands out of position and no ability to defend for the beat it takes to recover. Under Sanda it is worse still, since a fighter arriving airborne is trivially easy to catch and dump. It belongs in the arsenal as a finisher and an interception, not as a technique to be thrown speculatively.
Key points
- Launch off the lead leg with the rear knee driving through the target
- Time it against forward movement, when the closing speeds add together
- Look for a dropping head — a level change or a fatigued posture is the opening
- Keep both hands high; the head is entirely exposed in flight
- Never throw it against an opponent holding distance — you cannot adjust range mid-air
- Illegal under Kyokushin knockdown rules, which prohibit knees to the head
Common mistakes
- Throwing it speculatively rather than on a read
- Dropping the hands to generate height
- Launching from too far out, so the knee lands with no force at the end of the arc
- Failing to plan the landing, which leaves the fighter off balance inside range
Drills
- 1Belly-pad work with the holder stepping in, so the knee is always thrown into forward movement
- 2Timing drill at walking pace: partner advances, fighter launches on the second step
- 3Landing drill: throw the knee and immediately reset to a balanced, defended stance
- 4Restraint drill in sparring — one flying knee per round, so it stays a read rather than a habit