Intermediate

Knee Strike Drill

The knee strike is a close-range weapon that drives the point of the knee upward by thrusting the hips forward and pulling the target down. The lower abs and glutes power the hip snap while the rear leg extends explosively, making it a strong hip-hinge and core drive under speed. Drilled on air or a bag in rounds, it builds hip power and conditioning while sharpening a key clinch skill.

Equipment
Body Weight
Body part
Abs, Glutes
Type
Cardio, Functional
Muscles worked
Target
Lower Rectus Abdominals, Gluteus Maximus
Secondary
Rectus Femoris, Abdominal External Oblique
Tertiary
Erector Spinae, Gluteus Medius, Gastrocnemius Lateral Head

How to do it

  1. 1

    Stand in your stance with hands up, imagining a clinch grip on the target.

  2. 2

    Rise onto the ball of the standing foot as you lift the rear knee.

  3. 3

    Thrust the hips forward and drive the point of the knee upward into the target.

  4. 4

    Extend the standing leg and squeeze the glute at the top of the strike.

  5. 5

    Point the toes down and keep the trunk tall as the knee lands.

  6. 6

    Return the foot to stance and repeat, alternating legs for timed rounds.

Tips

  • Snap the hips through so the strike comes from hip extension, not just lifting the thigh.
  • Rise onto the ball of the standing foot to add height and power to the knee.
  • Pull down with imaginary clinch hands as the knee rises to link the whole body.

Variations

Common mistakes

  • The toes come up as the knee rises, so the flat of the thigh arrives where the point of the knee should; pointing the toes down gains you sharpness and a few inches of reach.
  • The trunk curls forward over the rising knee, which turns a hip snap into a crunch and gives away the height the strike just gained.
  • The knee reaches the top before the hips have moved, so the two arrive separately and the strike is a thigh lift with nothing driving it.
  • Knees get driven into a heavy bag with the cap leading, and the bone takes an impact the muscle above it should be taking; land an inch or two above the kneecap.
  • Legs alternate faster and faster near the end of a round until the foot barely touches down, and what began as knee strikes turns into running on the spot.

Frequently asked

How many knee strikes make a sensible first session?
Start with sets rather than rounds: 10 knees per leg, four sets, with a full reset between reps so the hips extend on every one. Then move to two-minute rounds alternating legs, three or four rounds with a minute of rest, aiming for about 30 strikes a round. On a bag, halve those numbers at first, because the impact takes getting used to. The measure of a good rep is whether the standing heel comes off the floor and the glute squeezes, not how fast the knees come up.
How do I make the knee strike drill easier or harder without a bag?
Easier: keep both feet flat, drive the knee only to waist height, and hold the top for a second to feel the hip extend before setting down. Slowing it right down teaches the hip snap better than speed does. Harder: rise higher onto the ball of the standing foot, put all the reps on one leg for a round, or add a jump so both feet leave the floor. A band around the thighs or a light ankle weight makes air knees feel heavy quickly, though neither replaces what a bag or a partner's pad teaches about impact.
Why drill knee strikes, and when should you leave them out?
It trains explosive hip extension with the lower abs pulling the knee through, a genuinely useful pattern and a hard conditioner over rounds, and it teaches the clinch position Muay Thai depends on. It is not a leg strength builder and does very little for the upper body. It is the wrong drill while a hip flexor, groin or low back is sore, since the snap loads all three, and hard knees into a bag are a poor idea if the front of the knee is already painful.

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