Exercise guide
Jump Box
- Intermediate
- Compound
- Timed hold
- Lower legs
- Upper legs
The box jump is a premier plyometric movement designed to develop explosive lower-body power and reactive strength while engaging the core for stability. It primarily targets the quadriceps and glutes while improving coordination and athletic performance.
Reviewed by the Crucible Fit team · Updated June 2026
Muscles worked
Setup
- Stand facing a sturdy box or platform with your feet hip-width apart.
- Position yourself approximately 6 to 12 inches away from the box.
- Keep your chest up, shoulders back, and core engaged with your arms at your sides.
How to do it
- Hinge at the hips and swing your arms back to load your posterior chain, then explosively drive your arms forward and jump upward.
- Exhale as you propel yourself off the ground, aiming to land softly in the center of the box.
- Land in a partial squat with your knees tracking over your toes and your full foot in contact with the surface.
- Stand up completely to lock out your hips before stepping down one foot at a time.
Form checklist
- Land softly with 'quiet feet' to absorb impact through the muscles rather than joints.
- Ensure knees do not cave inward during takeoff or landing.
- Land with your entire foot on the box, not just your toes or heels.
- Always step down rather than jumping back to protect your Achilles tendons and joints.
Pro tips
- Focus on 'triple extension'—the simultaneous and rapid extension of the hips, knees, and ankles—to maximize vertical power.
- Use your arms as momentum generators; the faster you swing them forward, the more height you will achieve.
Make it harder
- Increase the height of the box to challenge your vertical reach and power output.
- Perform a seated box jump by starting from a bench to remove the stretch-shortening cycle and force pure concentric power.
Frequently asked
- What muscles does the jump box work?
- The jump box primarily targets the calves, glutes, hamstrings, and quadriceps, and also works the serratus anterior as secondary muscles.
- What equipment do you need for the jump box?
- The jump box requires no equipment — just your body weight.
- Is the jump box good for beginners?
- The jump box is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.
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- 4 Way Single Leg HopAdvanced · calves, glutes, hamstrings, and quadriceps
- Alternate Knee Cross Over Sit Against WallIntermediate · calves, glutes, hamstrings, and quadriceps