What is the side knee in Muay Thai?

The side knee (Khao Dan Khang) is an oblique-angle knee strike that travels diagonally rather than straight up or across. It is thrown from clinch range to slip between an opponent's frame and land on soft tissue areas like the ribs or kidneys.

How do you execute the mechanics of a side knee?

Mechanically, the side knee uses a slight hip tilt and lateral knee drive instead of a vertical thrust. The lead foot stays planted while the knee rises and turns inward, contacting with the corner of the kneecap. Body weight transfers through the hip on the kicking side, not just the knee itself.

When is the side knee most effective?

It is particularly effective against opponents who frame straight forearms across the chest to defend against a straight knee. The angled path goes around their frame rather than into it, and it is commonly used as a follow-up after a straight knee fails to land cleanly.

What are common mistakes to avoid when throwing a side knee?

Common mistakes include throwing the strike with arm pull alone without hip rotation, aiming for the rib cage frontally instead of using the angle, and releasing head or body control to fire the strike. Standing square instead of staggering the stance is also a frequent error.

kneesintermediate

SIDE KNEE

เข่าด้านข้าง / Khao Dan Khang

In Short

The side knee is an oblique-angle strike thrown from clinch range that travels diagonally to bypass an opponent's straight-arm frame and land on the ribs, floating ribs, or kidneys. It relies on hip tilt and lateral knee drive rather than vertical thrust, making it an effective follow-up when a straight knee is blocked.

The side knee is an oblique-angle knee strike that travels diagonally rather than straight up or directly across. Thrown from clinch range, it slips between the opponent's frame and lands on the ribs, floating ribs, or kidney area at an angle that body posture alone cannot fully shield. The side knee is particularly effective against opponents who frame straight forearms across the chest to defend the straight knee — the angled path goes around their frame rather than into it. Mechanically, the side knee uses a slight hip tilt and lateral knee drive rather than the vertical thrust of the straight knee. The lead foot stays planted; the knee rises and turns inward at the same time, contacting with the corner of the kneecap on the soft tissue between the opponent's ribs and the iliac crest. Body weight transfers through the hip on the kicking side, not just the knee itself. The side knee is a common follow-up after the straight knee fails to land cleanly — when the opponent frames against the first strike, the second one finds the seam.

KEY POINTS

01Tilt the hip on the striking side to open the angle
02Drive the knee diagonally up and across, not straight up
03Contact with the corner of the kneecap on soft tissue (ribs, kidneys)
04Maintain clinch grip — do not release to throw the knee
05Recover by re-centering the hips and re-establishing grip

COMMON MISTAKES

✕Throwing the side knee with arm pull alone, no hip rotation
✕Aiming for the rib cage frontally — the angle is the point
✕Releasing the head/body control to fire the strike, losing position
✕Standing square instead of staggering the stance for the angle

TRAINING DRILLS

→Pad work with the holder presenting the side pad at the floating ribs
→Heavy bag clinch knees alternating straight and side angles
→Partner drill: frame the straight knee, force the partner to find the side angle

FREQUENTLY ASKED

What is the side knee in Muay Thai?: The side knee (Khao Dan Khang) is an oblique-angle knee strike that travels diagonally rather than straight up or across. It is thrown from clinch range to slip between an opponent's frame and land on soft tissue areas like the ribs or kidneys.
How do you execute the mechanics of a side knee?: Mechanically, the side knee uses a slight hip tilt and lateral knee drive instead of a vertical thrust. The lead foot stays planted while the knee rises and turns inward, contacting with the corner of the kneecap. Body weight transfers through the hip on the kicking side, not just the knee itself.
When is the side knee most effective?: It is particularly effective against opponents who frame straight forearms across the chest to defend against a straight knee. The angled path goes around their frame rather than into it, and it is commonly used as a follow-up after a straight knee fails to land cleanly.
What are common mistakes to avoid when throwing a side knee?: Common mistakes include throwing the strike with arm pull alone without hip rotation, aiming for the rib cage frontally instead of using the angle, and releasing head or body control to fire the strike. Standing square instead of staggering the stance is also a frequent error.