A step-up performed sideways onto a low box. Strengthens the quadriceps and hip stabilizers while training knee control in single-leg stance.
Primary muscles
Secondary muscles
This information is general fitness guidance, not medical advice. Stop if you feel pain and consult a qualified professional.
Main muscles working (thicker lines)
Stand side-on to a low box or step, with the near foot flat on top of it.
Shift your weight onto the foot on the box.
Press through that foot to straighten the leg and lift the other foot off the floor.
Stand tall briefly with the hips level.
Lower slowly until the free heel lightly touches the floor, then repeat.
Complete all reps, then switch sides.
Breathing: Exhale as you step up, inhale as you lower.
Knee over the middle toes
Hips level
Slow lowering
Pushing off the floor foot
Working knee drifting inward
Hip hiking to lift the free leg
Start with a low step and progress height gradually.