High Knees
March or jog in place driving each knee up toward hip height with light, quick foot contacts.
Overview
High Knees is a beginner cardio warm-up on Flexor. You march or jog in place, driving each knee toward hip height with coordinated arm swing.
What High Knees targets
The hip flexors lift the knees; the calves and feet handle quick ground contacts; the arms help set rhythm.
Why add High Knees to your routine
Raises heart rate and rehearses running mechanics before sport or training.
- Land softly and stay tall — reduce impact if joints are sensitive.
- Use a slower march instead of a jog when returning from injury.
Who it's for
Anyone needing a quick cardio primer before activity.
When to do it
Use at the start of warm-ups — about 15 seconds per interval, then walk it out.
High Knees are a dynamic warm-up drill that lifts heart rate. Drive the knees toward hip height, pump the opposite arm, land softly on the balls of the feet, and keep the torso upright.
Setup cue
Stand tall and begin a brisk march or jog, driving knees up toward hip height. Pump the opposite arm forward with each knee lift to keep rhythm.
Practice notes
In Flexor, High Knees is typically prescribed as about 45 sec per round, 1 rep, and 1 set. Adjust the dosage to what feels sustainable, breathe steadily, and ease off if anything feels sharp or unsafe.
Guidance
How to perform, tips, mistakes, safety notes, and benefits for High Knees.
Follow these cues in order. Move with control and stay in a comfortable range.
- Stand tall and begin a brisk march or jog, driving knees up toward hip height.
- Pump the opposite arm forward with each knee lift to keep rhythm.
- Land lightly under the body and keep the torso upright rather than leaning back.
- Maintain the high-knee cadence for the interval, then walk it out to recover.
Cues that help the movement stay smoother and more controlled.
- Land softly on the balls of the feet to protect the joints.
- Stay tall through the chest — avoid leaning backward.
- Pump the opposite arm with each knee lift to keep rhythm.
Patterns to watch for so the shape stays clearer.
- Slapping the feet down loudly instead of landing quietly.
- Leaning the torso back to lift the knees higher.
- Holding the breath during the interval.
Keep things comfortable and stop if something feels wrong.
- Modify or avoid high-impact versions if you have acute joint pain or are returning from injury—use a lower-impact march instead.
- Stop if you feel sharp pain, numbness, tingling, dizziness, or symptoms that radiate.
- Stay within a comfortable, controlled range; muscular effort or mild stretch tension should not become pain.
- Move smoothly without bouncing, jerking, or forcing the range.
Why people include this movement in their practice.
- Raises heart rate and body temperature before training or sport.
- Rehearses knee drive and arm swing used in sprinting and running.
- Builds light plyometric footwork when performed with soft landings.
Similar movements to explore next
-
Dynamic Wide Leg Forward Fold
Hinge forward from a wide stance and rise repeatedly to warm the hamstrings and hips.
-
Knee Circles
Stand with slightly bent knees and trace small circles through both knees to warm the joint before walking, running, or squatting.
-
Knee-to-Wall
Kneel facing a wall and drive your front knee forward over the toes while keeping the heel down to test and improve ankle dorsiflexion.
-
Kneeling Hip Circles
On hands and knees, lift one knee to the side and circle the thigh from the hip to open rotation without twisting the lower back.
-
Legs Up the Wall
Lie on your back with both legs supported vertically by a wall for a calm, low-effort resting position through the hips and legs.
-
Lying Quad Stretch
Side-lying quad stretch that pulls the top heel toward the glute to open the front of the thigh.
-
Quad Stretch
Seated quad stretch that pulls the heel toward the glute to open the front of the thigh.
-
Controlled Butt Kicks
March in place and draw each heel toward the glute at a slow, controlled tempo.
Common questions
Which body areas does High Knees target?
High Knees is a warm up movement that mainly targets your hips, knees, and calves. Move within a comfortable range and skip it if it does not feel suitable for you.
Which muscles does High Knees work?
Primary muscles associated with High Knees include iliopsoas, rectus femoris, and gastrocnemius. Flexor presents this as general wellness guidance, not a clinical assessment.
Is High Knees suitable for beginners?
High Knees is listed as beginner in Flexor. Choose a smaller range of motion, fewer repetitions, or an easier variation whenever you want more control.
How long should you hold High Knees?
In Flexor, High Knees runs for about 45 sec per round. Adjust the time to what feels sustainable, breathe steadily, and ease off sooner if anything feels sharp.
How do you do High Knees?
High Knees has 4 guided steps. Follow them in order on this page, breathe steadily, and keep the movement smooth and within a comfortable range. Stop if anything feels sharp, unstable, or unsafe for you.
Do you need any equipment for High Knees?
No. High Knees is a no-equipment movement you can do at home with just enough space to move comfortably.
Which Flexor routines include High Knees?
High Knees appears in guided Flexor sessions such as Warm-Up: Run-Ready Prep and Warm-Up: Court Quickness. Open a routine page to follow the full sequence, or practise this movement on its own from this guide.
Is this medical advice?
No. Flexor provides general fitness and wellness guidance. It does not diagnose, treat, or prevent medical conditions. Speak with a qualified professional about injuries, persistent pain, or health concerns.
