Donkey Kick

Definition

The donkey kick is a bodyweight glute-isolation exercise performed on all fours. The athlete drives one heel toward the ceiling while keeping the knee bent at 90 degrees, targeting the gluteus maximus through hip extension. Classified as a hinge/isolation movement, the donkey kick requires zero equipment and is widely used in warm-up routines and accessory circuits for HYROX^® athletes who need to activate the posterior chain before heavy sled work or running.

Technique & Form

1. Starting position - Kneel on all fours with wrists stacked under shoulders and knees under hips. Brace the core so the lower back remains neutral.
2. Drive phase - Keeping the right knee bent at 90 degrees, press the sole of the foot toward the ceiling until the thigh is parallel to the floor. Squeeze the glute hard at the top.
3. Lowering phase - Lower the knee back toward the floor under control without letting it touch. Maintain a flat back throughout.
4. Breathing - Exhale as you drive the leg up; inhale as you lower.
5. Tempo - Use a 1-0-2-0 tempo (1 second up, 2 seconds down) for activation work, or add a 2-second hold at the top for extra tension.

Muscles Worked

• Primary movers: Gluteus maximus
• Stabilizers: Core (transverse abdominis, obliques), hamstrings, erector spinae

Common Mistakes

• Arching the lower back - Hyperextending the lumbar spine to lift the leg higher steals tension from the glute. Fix: keep the ribs pulled down and only lift until the thigh reaches parallel.
• Using momentum - Swinging the leg reduces time under tension. Fix: pause for one second at the top of every rep.
• Shifting weight - Leaning away from the working leg changes the loading. Fix: press both hands evenly into the floor.

Benefits

• Activates the gluteus maximus before compound lifts like squats and deadlifts.
• Improves hip extension strength, which directly powers running stride length.
• Requires no equipment, making it ideal for warm-ups at any HYROX^® venue.

HYROX^® Context

The donkey kick is a warm-up and prehab exercise rather than a primary station builder. Strong glute activation before the Sled Push and Sled Pull stations ensures the posterior chain fires efficiently under load. Athletes who skip glute activation often compensate with their lower back during the 4 x 1 km runs, accelerating fatigue. Program 2-3 sets of 15 reps per side during your pre-race or pre-training warm-up.

Variations & Alternatives

• Glute Bridge - Supine hip extension with both feet on the ground.
• Fire Hydrant - Same starting position but the leg abducts to the side.
• Dumbbell Hip Thrust - Loaded hip extension for building maximal glute strength.

FAQ

Are donkey kicks effective for building glute strength? They are effective for activation and endurance but not for maximal strength. For heavy loading, progress to hip thrusts or Romanian deadlifts. Donkey kicks work best as part of a warm-up or high-rep accessory circuit.

How many reps should I do? 15-25 reps per side for activation, 2-3 sets. If the movement feels easy, add a resistance band around the thighs or hold a 2-second pause at the top.

Track your warm-up and accessory work alongside your HYROX^® station training with ROXBASE.