How many reps of the seated box jump should you do when you are new to the exercise?

Because every rep restarts from a true dead stop, treat it like a max-effort lift rather than a conditioning set: 3 sets of 3 to 5 reps with 60 to 90 seconds of full recovery between jumps. Progress the box height gradually once you can explode up cleanly without any backward rock on the bench.

What can I do instead of the seated box jump if I have no bench?

A sturdy chair, low box, or bleacher step works as a substitute seat as long as it will not slide. With nothing to sit on, a squat jump that pauses fully at the bottom before exploding up mimics the same dead-stop demand.

Why do a seated box jump instead of a standard box jump?

Removing the countermovement isolates pure starting strength and concentric power, which carries over to any sport that demands acceleration from a static position, like a sprint start. It is a poor first box-jump progression for total beginners, since the dead-stop start is more technical to execute cleanly; earn it on the standard box jump first.

Intermediate

Seated Box Jump

The seated box jump strips out the stretch reflex by having you start at rest on a bench, so it trains pure concentric, starting-strength power. With no dip to bounce off, the hips and quads must generate the whole jump from a dead stop, which carries over to any sport where you accelerate from a static position. It is also a useful teaching tool for grooving a fast, aggressive triple extension.

Equipment: Bench, Box
Body part: Glutes, Quads
Type: Plyometric
Browse by muscle: Gluteus Maximus, Rectus Femoris, Vastus Lateralis
Browse by movement: Squat

How to do it

1
Sit on a bench with feet flat, roughly hip-width, and a box set a short step in front.
2
Lean the torso slightly forward and set the arms back to prepare.
3
Without rocking or bouncing, explode up and forward off both feet.
4
Throw the arms up and extend the hips, knees, and ankles to reach the box.
5
Land softly on top in a quarter squat with both feet flat.
6
Stand tall, step down one foot at a time, and sit back down to reset.

Tips

Pause fully on the bench so each rep starts from a true dead stop with no pre-bounce.
Keep the shin and hip angles athletic; do not rock backward to steal momentum.
Pick a height you can clear cleanly from rest rather than one that forces a scramble on top.

Variations

Common mistakes

Rocking the torso backward before exploding up, sneaking in a countermovement that defeats the entire point of starting from a dead stop.
Sitting too far back on the bench, forcing the hips to travel through a long arc before the legs can even engage.
Letting the knees cave inward as you drive off the bench, since there is no downward dip beforehand to help groove the tracking.
Standing up only partway and calling it a rep instead of fully extending the hips, knees, and ankles at the top of the jump.
Choosing a bench that sits too low, which forces the torso to lean far forward and turns the vertical jump into a lean-and-lunge.

Frequently asked

How many reps of the seated box jump should you do when you are new to the exercise?: Because every rep restarts from a true dead stop, treat it like a max-effort lift rather than a conditioning set: 3 sets of 3 to 5 reps with 60 to 90 seconds of full recovery between jumps. Progress the box height gradually once you can explode up cleanly without any backward rock on the bench.
What can I do instead of the seated box jump if I have no bench?: A sturdy chair, low box, or bleacher step works as a substitute seat as long as it will not slide. With nothing to sit on, a squat jump that pauses fully at the bottom before exploding up mimics the same dead-stop demand.
Why do a seated box jump instead of a standard box jump?: Removing the countermovement isolates pure starting strength and concentric power, which carries over to any sport that demands acceleration from a static position, like a sprint start. It is a poor first box-jump progression for total beginners, since the dead-stop start is more technical to execute cleanly; earn it on the standard box jump first.

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