Butt Kicks: A Complete Guide to Running-in-Place Heel Kicks
Also called Heel Kicks, Hamstring Kicks
Quick Intro
Butt kicks are a high-impact cardio exercise performed by running in place while kicking the heels up toward the glutes. The same heel-to-glute motion works as a dynamic warm-up stretch for the quads, needs no equipment and is used in speed and agility training for the leg-turnover speed it builds.
Equipment Needed
Butt kicks only need enough floor space to kick the heels up freely without striking anything behind you.
Why Butt Kicks Matter
This exercise also works as a dynamic stretch: each kick warms the hamstrings and takes the front of the thigh through its range while the pace keeps the heart rate up.
The back of the thigh (hamstrings, specifically the biceps femoris and semitendinosus) drives the fast heel-to-glute kick that gives this exercise its name. The glutes (gluteus maximus) control the hip through each kick, and the calves (gastrocnemius) manage the quick, light foot contacts between kicks.
Cardiovascular endurance and muscular endurance lead what this exercise demands, both at a moderate level, with flexibility close behind.
When to Do It
Butt kicks work well as a warm-up before running, sprinting or jumping work, given the dynamic stretching built into the movement, as well as a standalone light cardio interval. Most days of the week are reasonable given how light the movement is.
One situation is worth attention:
- Tight quads or a hamstring that cramps easily. Forcing the heel up toward the glute before the legs are warm can feel like a pull, not a stretch. Keeping the kick controlled and building range gradually avoids this.
For almost everyone else, this is a useful dual-purpose movement, doing warm-up and cardio work at the same time.
Getting Ready
Since butt kicks already function as a warm-up in their own right, a few slow, controlled reps at a reduced pace before working up to full speed is all the preparation needed.
Quickly flex the knee to bring the heel up toward the glute, rather than leaning forward and kicking backward. The movement should stay directly under the hips with minimal forward travel.
Step-by-Step Instructions
1. Setup. Stand tall with the feet hip-width apart.
2. The kick. Quickly flex one knee, kicking the heel up toward the glute.
3. The switch. Plant that foot and immediately kick the other heel up, alternating in a light, jogging-in-place rhythm.
4. The posture. Stay upright through the torso, directly over the hips, not leaning forward to reach for extra height.
How Many, How Often
| Level | Where you’re at | What to do |
|---|---|---|
| Beginner | New to the movement | 3 sets of 20 to 30 seconds. |
| Intermediate | 30 seconds feels controlled | 3 to 4 sets of 30 to 45 seconds continuous. |
| Advanced | 45 seconds continuous comes easily | Given how light this exercise is on its own, pairing it with High Knees or another sprint-prep drill as part of a full dynamic warm-up sequence is the natural next step. Chasing longer sets in isolation adds little at this point. |
Keeping the heel reaching the glute on every rep matters more here than tempo, since a fast kick that never reaches full height loses most of the stretch and coordination benefit.
Modifications and Variations
Butt kicks connect to one alternative, not a straightforward easier-or-harder ladder.
As an alternative, High Knees trades the heel-to-glute hamstring focus for a knee-drive pattern that emphasizes the hip flexors and quadriceps instead, at a similar general tempo.
There is no easier or harder version of it.
Common Mistakes to Avoid
Leaning forward and kicking backward instead of flexing the knee under the hips. This turns a controlled heel kick into a looser backward swing. Keeping the movement directly under the hips fixes it.
Arching the back to reach for extra heel height. Forcing more height through the lower back doesn’t add range at the knee, it just adds unnecessary spinal load. Staying tall and controlled keeps the height honest.
Landing flat-footed. A flat-footed landing slows the tempo and adds unnecessary impact to what’s meant to be a light, quick movement. Staying light on the balls of the feet keeps the rhythm fast and the landings soft.
Dropping the arm drive entirely and just bouncing the legs. Passive arms lose the rhythm that keeps the kicks quick and controlled. Pumping the arms in a light, matching rhythm keeps the whole pattern connected.
After Your Set
Since each kick already takes the front of the thigh through its range, a separate static quad stretch afterward is optional. The calves don’t get the same built-in benefit, though, so standing with the balls of both feet on the edge of a step and letting the heels drop slowly below it is worth doing separately.
Going Deeper
Butt kicks are easy to underrate as “just a warm-up drill,” but at full pace and full heel height, the cardiovascular demand is more than incidental. Progress tends to plateau because the heel-to-glute range quietly shrinks as the legs tire, well before a set’s timer runs out. Watching heel height specifically through the second half of a set, not just how fast the feet are moving, is a better read on whether the drill is still doing its job.
Most people starting from scratch hit 30 seconds continuous with a full heel-to-glute range within the first one to two weeks, and 45 seconds continuous without the range shrinking somewhere in the three to five week range.
How to Know You’re Improving
- 30 seconds continuous with the heel reaching the glute on every rep
- 45 seconds continuous without that range shrinking
- A visibly upright torso maintained through a full set
- A light, quick arm drive that stays active from first rep to last
A heel that still reaches the glute on the last rep of a set, not just the first, says more about how the legs are holding up than how fast the feet are moving.
Muscles Worked
- Biceps Femoris (the outer hamstring at the back of the thigh, bending the knee to bring the heel up)
- Semitendinosus (the inner hamstring, sharing the knee flexion that drives each kick)
- Gluteus Maximus (the largest glute muscle, holding the thigh in place so the movement stays at the knee)
- Gastrocnemius (the main calf muscle, keeping a light bounce going underneath)
FAQ
Is this the same as High Knees? No, High Knees drives the knee forward and up, while butt kicks flex the knee to bring the heel back toward the glute, working the hamstrings instead of the hip flexors and quads.
Can I use this purely as a warm-up? Yes, and it’s well suited to that role, since the movement warms the hamstrings and loosens the front of the thigh.
Do I still need to stretch afterward? The front of the thigh already goes through its range on every kick, so a separate quad stretch is optional. The calves benefit more from a separate stretch here.
Why does my form fall apart near the end of a set? Fatigue tends to shrink the heel-to-glute range before it noticeably slows the pace, which is exactly why height matters more to watch than speed.
Next in this series: High Knees, the alternative knee-drive drill that trades hamstring focus for hip flexor and quad emphasis.