Exercise guide
High Knee Run
- Beginner
- Compound
- Timed hold
- Lower legs
- Upper legs
The High Knee Run is a dynamic cardiovascular exercise that builds explosive power in the lower body while heavily engaging the core and hip flexors. It improves running mechanics and metabolic conditioning by requiring rapid, alternating leg movements.
Reviewed by the Crucible Fit team · Updated June 2026
Muscles worked
Setup
- Stand tall with your feet hip-width apart and your core engaged.
- Position your hands in front of you at waist height with palms facing down to serve as a height target.
- Keep your shoulders relaxed and your gaze fixed straight ahead.
How to do it
- Drive your right knee up toward your chest, aiming to tap your palm, while simultaneously pumping your left arm forward.
- Quickly switch legs, landing softly on the ball of your right foot as you drive the left knee upward.
- Maintain a fast, rhythmic pace, exhaling sharply with every knee drive.
- Keep your contact time with the ground as short as possible to maintain high intensity.
Form checklist
- Drive knees to at least hip height on every repetition.
- Stay on the balls of your feet; do not let your heels touch the ground.
- Keep your torso upright and avoid leaning backward as you tire.
- Maintain a strong core brace to prevent excessive hip swaying.
Pro tips
- Focus on the 'pull' from your lower abdominals to initiate the knee drive for better core integration.
- Think about 'hot ground' to minimize foot contact time and increase calf activation.
Make it harder
- Transition into a 'Power High Knee' by jumping as high as possible with each stride.
- Incorporate forward or lateral travel to challenge your coordination and agility.
Frequently asked
- What muscles does the high knee run work?
- The high knee run primarily targets the abs and calves, and also works the hamstrings and hip flexors as secondary muscles.
- What equipment do you need for the high knee run?
- The high knee run requires no equipment — just your body weight.
- Is the high knee run good for beginners?
- Yes. The high knee run is a beginner-friendly movement and a strong foundation to build on.
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