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Exercise library · Quads

Step-up

Lunge for the quads with dumbbells.

How to do it

1 of 3

Whole foot on the box

  1. Starting position

    Stand in front of a stable box with a dumbbell in each hand and place one whole foot on the box.

  2. The movement

    Press through the foot on the box and stand up fully, then step down slowly with the other foot first while the leg on the box controls the descent.

Most common mistake

Don't push off with the foot on the floor, let the leg on the box do the work and keep that knee in line with your toes.

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Muscle group
Quads
Equipment
Dumbbells
Where
Home or gym
Logged as
Weight × reps

Muscles worked

The step-up is a single-leg exercise in which your quads and glutes do most of the work. Your hamstrings and inner thighs help extend the hip, and the smaller glute muscles on the side of your hip keep your pelvis level while you stand on one leg. Box height changes the balance: a higher box puts your hip in a deeper bend at the start and tends to give your glutes a bigger share of the work, while a lower box makes the exercise easier and lets your quads take more.

Common mistakes

  • The box is too high. If you have to throw your upper body forward to get up, the height is wrong. Start with a box no higher than one that leaves your thigh roughly level with the floor when your foot is on it.
  • Your upper body collapses. The dumbbells tend to pull your shoulders forward and round your back. Stand tall with your chest up and let the dumbbells hang straight down by your sides. A slight lean forward from the hips is fine, but keep your back straight.
  • The weaker leg does less. If you start with the stronger leg, the other one easily ends up with fewer reps. Start with the weaker leg, then do the same number on the stronger one.

Variations and alternatives

  • The chair step-up is the same movement at home, without dumbbells.
  • The Bulgarian split squat is a harder single-leg option for the same muscles, with your back foot on a bench.
  • The reverse lunge trains the same muscles when you have nothing solid to step onto.
  • Box jumps when you want to train explosive power rather than strength.

Sets and reps

Step-ups are counted per leg. For building muscle and strength, 2 to 4 sets of 8 to 12 reps per leg is common, with one to two minutes' rest once both legs have worked. Balance often gives out before your muscles do, so really heavy, low-rep sets are better kept for lifts like the squat. End the set when you start getting help from the foot on the floor. The guide to sets and reps explains how to choose.

Add reps first. Once you reach the top of the range on both legs, move up to the next pair of dumbbells and start again a little lower in the range. Log the weight, the reps and the box height so you know what to beat next time. That is progressive overload in practice.

Also called

  • step up
  • box step up

Swap for

Taken, or missing the equipment? The same movement with something else.

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