Box Step-Up Repeatable AMRAP
box step-up wod
AMRAP 12
10 alternating box step-ups
8 controlled air squats
Keep every round within a consistent pace
Bodyweight
Box Step-Up — CrossFit Technique Guide
BB
By Borja Bes — CrossFit Athlete & Hyrox Finisher
The box step-up is one of the most useful lower-body accessory movements in functional fitness because it builds unilateral leg strength without the impact cost of jumping. In CrossFit, step-ups are used as a scaling option for box jumps and step-overs, but they are also a valuable training tool in their own right for beginners, masters athletes, and anyone rebuilding volume after injury. When loaded with dumbbells or kettlebells, step-ups also create a meaningful trunk and grip demand.
Quick answer
The box step-up is one of the most useful lower-body accessory movements in functional fitness because it builds unilateral leg strength without the impact cost of jumping. Use repeatable sets of Box Step-Up and scale before breathing speed causes range of motion or control to disappear.
Curated demonstration
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The Box Step-Up
CrossFit · reviewed 2026-08-06
Muscles Worked
QuadricepsGlutesHamstrings
Equipment
Plyo box or bench
Best For, Avoid If, and Scaling
| Best for | Box Step-Up conditioning when the goal is repeatable output through quadriceps and glutes, with a version that matches the athlete's current capacity. |
|---|---|
| Avoid if | Avoid or scale Box Step-Up if pain changes the movement or the intended position cannot be controlled. Correct this common fault before adding volume: pushing excessively off the trailing leg instead of the working leg. |
| Scaling | Lower box height or supported step-ups holding a rail/rig. |
How to Do the Box Step-Up
1
Place one full foot on the box with the heel planted.
2
Lean slightly forward and drive through the front foot.
3
Bring the second foot to the top under control.
4
Step down carefully and repeat, alternating as prescribed.
Common Mistakes
✕
Pushing excessively off the trailing leg instead of the working leg.
✕
Placing only the toes on the box rather than the full foot.
✕
Dropping down quickly and losing control on the eccentric.
Coaching Tips
✓
Use a box height that lets you stand tall without twisting the pelvis.
✓
Loaded step-ups are excellent for building capacity for lunges and carries.
Scaling Options
Easier / Beginner
Lower box height or supported step-ups holding a rail/rig.
Harder / Advanced
Weighted step-ups, front-rack step-ups, or high box step-ups.
Training Examples
Train Box Step-Up with a Clear Purpose
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Box Step-Up Conditioning Intervals
box step-up conditioning
Every 3:00 x 6 rounds
10 alternating box step-ups
8 controlled bodyweight reps
Rest for the remainder; avoid a first-round sprint
Frequently Asked Questions
Are box step-ups just a beginner version of box jumps?
No. They are a legitimate unilateral strength and conditioning movement, even though they are also an excellent scaling option for athletes who should avoid impact.
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