Summary The donkey kick is an intermediate-level bodyweight glute isolation exercise performed from an all-fours position, primarily targeting the gluteus maximus through hip extension, with secondary activation of the hamstrings, core stabilizers, and gluteus medius. Research published in the Journal of Orthopaedic and Sports Physical Therapy found that quadruped hip extension exercises produce high gluteus maximus activation when performed with controlled form (Reiman et al., 2012). The key form cue is bracing the core to prevent lower back arching and lifting the thigh only to hip height with a 90-degree knee bend while driving through the heel. Best used as a warm-up or accessory exercise at 3 sets of 15-20 reps per leg, commonly paired with fire hydrants for complete glute complex coverage.

The donkey kick is one of those exercises that looks ridiculously easy and, honestly, kind of silly. You're on all fours kicking your foot at the ceiling. It doesn't look like much. But when done correctly, with a real squeeze at the top and your core actually braced, it's one of the best glute activation exercises you can do without any equipment.

Here's the catch though. Most people do donkey kicks wrong. They arch their back, swing their leg, and feel it everywhere except the glute. A 2011 study published in the Journal of Orthopaedic & Sports Physical Therapy found that quadruped hip extension exercises produce high gluteus maximus activation when performed with controlled form (Reiman et al., 2012). But that "controlled form" part is doing a lot of heavy lifting in that sentence. Speed it up or arch your back, and the activation drops off fast.

This guide covers how to do donkey kicks properly, the mistakes that kill your glute activation, and how to pair them with fire hydrants for a complete glute warm-up.

Donkey kick muscles targeted diagram showing gluteus maximus as primary muscle with hamstrings, core stabilizers, and gluteus medius as secondary
Donkey kick muscles targeted: gluteus maximus does the heavy lifting, with hamstrings and core stabilizers assisting.

Quick Facts

Primary MusclesGluteus maximus
Secondary MusclesHamstrings, core stabilizers, gluteus medius
EquipmentBodyweight (no equipment needed)
DifficultyIntermediate
Movement TypeIsolation · Unilateral · Hip extension
CategoryStrength
Good ForGlute activation, warm-up, mind-muscle connection, rehab

How to Do Donkey Kicks (Step-by-Step)

  1. Get on all fours. Hands directly under your shoulders, knees directly under your hips. Spine neutral. Not arched up, not sagging down. Look at a spot on the floor about a foot in front of your hands to keep your neck in line with your spine.
  2. Brace your core. This is the step people skip, and it's the most important one. Tighten your abs like someone's about to poke your stomach. This prevents your lower back from arching when you lift, which is what causes people to feel it in their back instead of their glute.
  3. Drive one foot toward the ceiling. Keep your knee bent at 90 degrees the entire time. Push through your heel, not your toes. Lift until your thigh is roughly in line with your torso. That's it. No higher. If you go higher, your back arches and the glute stops doing the work.
  4. Squeeze at the top. Hold for a full second. Actually squeeze. You should feel the contraction deep in the glute, not in your lower back. If you can't feel it in the glute, you've gone too high or your core has relaxed.
  5. Lower slowly. Bring your knee back down under control. Stop just before it touches the floor, then drive back up. Don't let your knee slam down between reps. Complete all reps on one side before switching.

Coach Ty's Tips: Donkey Kick

These come straight from Coach Ty, FitCraft's 3D AI coach. They address the form mistakes Ty catches most often:

Donkey kick proper form showing starting position on all fours and end position with foot pressing toward ceiling, knee at 90 degrees, neutral spine
Donkey kick proper form: neutral spine, 90-degree knee bend, thigh lifts to hip height only.

Common Mistakes to Avoid

Donkey kicks look simple but the form errors are sneaky. You won't always know you're making them unless someone tells you:

Get this exercise in a personalized workout

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Donkey kick progression from standard bodyweight to resistance band to straight-leg variation
Donkey kick progressions: from standard bodyweight to banded to straight-leg variations.

Variations and Progressions

Standard Donkey Kick (Intermediate)

The version described above. Bodyweight, all fours, 90-degree knee bend. This is your starting point and, honestly, the version most people should stick with until they can do 3 sets of 20 with a full 1-second squeeze at the top and zero lower back involvement.

Resistance Band Donkey Kick (Advanced)

Loop a mini band around both thighs just above the knees, or use a longer band anchored under your hands with the loop around the sole of your working foot. The band adds resistance at the top where the glute is in its shortest position. This makes the squeeze significantly harder. Good progression once bodyweight gets too easy.

Straight-Leg Donkey Kick (Advanced)

Same setup, but extend your working leg straight instead of keeping the 90-degree bend. This lengthens the lever arm and makes the exercise harder. It also shifts slightly more work to the hamstring, so it's less of a pure glute isolation. Use it as a variation, not a replacement.

Complementary Exercises

Programming Tips

Donkey kicks work best as activation or accessory work. Here's how to slot them in:

FitCraft's AI coach Ty programs donkey kicks as part of your warm-up sequence when your plan includes lower-body compound movements. The 3D demonstrations show the exact height to kick (spoiler: it's lower than you think) and Ty will cue you when your back starts to arch.

Frequently Asked Questions

Do donkey kicks actually build glutes?

Yes, donkey kicks effectively activate the gluteus maximus when done with proper form and a deliberate squeeze at the top. They won't replace heavy compound movements for muscle growth, but they're excellent for activation, isolation, and building the mind-muscle connection that makes your compound lifts more effective.

How many donkey kicks should I do?

For most people, 3 sets of 15 to 20 reps per leg. Donkey kicks are a low-load isolation exercise, so higher rep ranges work better than trying to do heavy sets of 5. Focus on the squeeze at the top rather than rushing through reps.

What's the difference between donkey kicks and fire hydrants?

Donkey kicks push your foot toward the ceiling (hip extension), targeting the gluteus maximus. Fire hydrants lift your knee out to the side (hip abduction), targeting the gluteus medius. They're complementary exercises that work different parts of the glute complex, which is why they're often paired together.

Can donkey kicks replace squats?

No. Donkey kicks are an isolation exercise for glutes, while squats are a compound movement that trains quads, glutes, hamstrings, and core simultaneously under load. Use donkey kicks as a warm-up or accessory alongside compound movements.

Why do I feel donkey kicks in my lower back?

You're arching your lower back to lift your leg higher. Your core isn't braced, so your back extensors are taking over. Fix: brace your abs hard, reduce your range of motion, and focus on squeezing the glute. Your thigh only needs to reach hip height.