How to Do High Knee Running with Proper Form

High knee running is running in place with a bigger knee drive. Instead of a comfortable jog with mid-height knees, you drive each knee to hip height or higher on every step and push up off each foot through a tall standing leg, as in a real run. The result is a conditioning drill that works your hip flexors, calves, quadriceps and glutes, with the fronts of your shoulders pumping your arms.

The usual faults are knees that stop well below hip height, a trunk that leans back and heavy landings. Done with good form, it is a quick, equipment-free way to raise your heart rate and practice a strong knee drive and push-off.

Muscles & Systems Worked

Primary muscles: the hip flexors (the iliopsoas, with the rectus femoris helping) drive each knee up to hip height. The calves (gastrocnemius and soleus) push off the ball of the foot on every step. The quadriceps straighten the standing leg as you push up and take each landing. The glutes drive the standing hip straight as you push up and bring each thigh back down.

Secondary muscle: the anterior deltoids, the fronts of your shoulders, swing each arm forward in the running arm pump.

What the research shows: a study of stationary running with the hip and knee lifted to 90 degrees in 12 active women (Alberton et al., 2015) recorded four thigh muscles. At the slower set cadence, the rectus femoris, part of the quadriceps, was most active as the knee lifted. At both speeds, the vastus lateralis was most active while the foot was on the floor. Every thigh muscle measured was more active at maximal speed than at the slower cadence. That is one reason a faster pace makes the drill harder, as long as your knees still reach hip height. The study did not measure the calves, the iliopsoas, the glutes or the shoulders.

Step-by-Step: How to Perform High Knee Running

Whether you're using it as a warm-up or a conditioning finisher, the movement pattern is the same. The cues below apply to both.

Step 1: Stand Tall in an Athletic Ready Position

Stand tall with your feet about hip-width apart under your hips and your chest lifted. Bend your elbows to about 90 degrees with loose fists, one arm forward and one back. Your weight should sit forward on the balls of your feet, never back on the heels. Look at a point straight ahead.

Step 2: Drive One Knee Up to Hip Height

Drive one knee up until your thigh is about level with the floor, at least hip height. At the same time, push up off the ball of the other foot through a tall, nearly straight standing leg. Drive the knee up as you would when running.

Tip: aim for hip height on every step. Higher is fine as long as you stay tall, and lifting a little lower is the easier version, not a failed rep.

Step 3: Land Softly and Switch Legs Immediately

As the lifted foot comes back down under your hip, land softly on the ball of the foot with the knee slightly bent. In the same instant, drive the other knee up to the same height, then push off again straight away.

Tip: keep the landings quiet. Your heels barely touch the floor, if at all.

Step 4: Match Your Arms to the Cadence of a Real Run

Swing your arms forward and back in opposition to your legs: when one knee comes up, the opposite arm swings forward. Keep your elbows bent about 90 degrees, and bring the front hand up to about chin height and the back hand behind your hip. Don't let your arms cross your body; keep the swing straight forward and back.

Step 5: Hold Your Posture Tall and Breathe

Stay tall through the trunk. A slight forward lean is fine, but never lean back to get your knees higher. Fix your eyes on a point straight ahead for balance. Keep breathing in and out at a steady rhythm the whole time and don't hold your breath.

Tip: slow down when your knees stop reaching hip height. A faster pace only helps while the knees still come up.

Common Mistakes (and How to Fix Them)

Here are the most common mistakes.

• Knees stopping well below hip height. This is the most common mistake. If your knees come up only to mid-thigh height or lower, the drill turns into an ordinary jog in place. Slow the pace if you need to, and aim for a thigh about level with the floor on every step.
• Leaning back to get the knees higher. Many people lean the trunk back to make the knee drive feel easier. Stay tall with your shoulders over your hips; a slight forward lean is fine. If your knees only come up when you lean back, slow down.
• Landing heavily, flat-footed or stiff-legged. Heavy landings kill your rhythm, because you can't push off a flat foot the way you can off the ball of the foot. Land softly on the balls of your feet under your hips with the knee slightly bent.
• Arms hanging still or swinging across the body. Keep the arms pumping straight forward and back with the elbows bent about 90 degrees, opposite arm with opposite knee.
• Going faster than you can keep the knees up. If your knees drop as you speed up, slow down until they reach hip height again. Pace and knee height together set the effort.
• Holding your breath. High knee running raises your heart rate fast. Keep breathing in and out at a steady rhythm the whole time and don't hold your breath.

High Knee Running Variations: Regressions and Progressions

Start where you are and progress when your form is solid at the current level.

Marching High Knees (Easier)

Perform the knee drive at a walking pace instead of a running pace, with no hop and one foot always on the floor: one knee up toward hip height, foot down, then the other knee up. This is close to the app's marching in place, rated Beginner. It is a good starting point if you haven't done the drill before, or if your shins or feet feel the pounding of the running version without any pain. Slowing down with the knees a little lower is another easier option.

High Knees (Easier)

The FitCraft app's high knees use the same knee drive with a small hop but keep the standing knee a little bent instead of pushing up tall off each foot. The app rates them Intermediate, the same level as this page, but they are the easier of the two because there is no tall push-off. They are not slower: the app plays about 0.4 seconds per step.

Traveling High Knee Running (Harder)

Travel slowly forward as you go, pushing up and forward off each foot. This is the usual track version of the drill.

Faster High Knee Running (Harder)

Pick up the pace while your knees still reach hip height and your landings stay light, for example in bursts of 10 to 15 seconds with 45 to 60 seconds of rest between rounds. Four to six rounds is plenty.

Butt Kicks (Complementary Pairing)

Not a variation, but a natural pairing. Butt kicks kick each heel up behind you instead, working the hamstrings and calves with the glutes helping. Alternating sets of the two makes a balanced lower-body conditioning circuit.

When to Avoid or Modify High Knee Running

High knee running is safe for most healthy adults. A burn in the fronts of your hips and thighs, your calves or your glutes is normal; any pain in a joint, your lower back or your neck means stop the exercise. If any of the following apply, talk to a doctor or physical therapist before you do high knee running.

• Knee pain or post-surgical knees. The repeated landings on the ball of the foot pass force through the knee on every step, which can aggravate patellofemoral pain, meniscus irritation, or post-surgical knees. Skip high knee running and see a doctor or physical therapist; start again only once they clear you.
• Acute ankle injury, shin splints, or plantar fasciitis. The repeated landings can aggravate these. Skip high knee running and see a doctor or physical therapist; start again only once they clear you.
• Pregnancy. Increased joint laxity, a shifting center of mass, and pelvic-floor load can make bouncing movements riskier. Ask your doctor or midwife whether high knee running suits you at each stage of pregnancy.
• Postpartum recovery, or active stress incontinence. Get clearance from your doctor or a pelvic floor physical therapist before you do high knee running or other jumping movements again.
• Cardiovascular disease or uncontrolled hypertension. High knee running raises heart rate and blood pressure rapidly. Get your cardiologist's approval first and stay within the heart-rate zones they prescribe.
• Vertigo, balance disorders, or vestibular conditions. The fast pace and quick foot turnover risk falls. Ask your doctor before doing high knee running.

Related Exercises

If high knee running is part of your routine, these movements complement or extend the same training pattern:

• Same pattern in the app: High Knees (Intermediate in the app) use the same knee drive on a slightly bent standing knee and are the easier of the two because there is no tall push-off, and Run in Place (Beginner) is an easy jog in place with the knees at a comfortable running height.
• Complementary cardio pairing: Butt Kicks kick each heel up behind you, working the hamstrings and calves with the glutes helping, which makes a balanced lower-body conditioning circuit when alternated.
• Other cardio drills: Mountain Climbers, Jumping Jacks, and Jump Squats work well in the same HIIT circuit. Rotate through them to vary the movement.
• Lower-body strength work: Bulgarian Split Squats and Calf Raises build leg and calf strength with no impact.

How to Program High Knee Running

High knee running programming is time-based: work and rest intervals rather than sets and reps. The research we reviewed gives no work or rest times for this drill, so treat the table below as a practical starting point and adjust it to how well your knees hold hip height.

Where in your workout: use high knee running as part of a warm-up, in a dedicated conditioning block, or as a finisher at the end of a session. Keep it to 5 to 10 minutes of high knee running in one session. Save long, hard blocks for after heavy lower-body lifts, because tired legs make those lifts harder to do well.

Form floor over time targets: if your knees stop reaching hip height in the final seconds of a set, slow down or end the set there. Rest, then restart with your knees back at hip height.

The FitCraft app does not include high knee running, so use the table above to program it yourself. The app does include high knees, rated Intermediate, which use the same knee drive with a small hop on a slightly bent standing knee, and marching in place and running in place, both rated Beginner.