The step-up is a single-leg exercise that builds the quads and glutes while training balance — you simply step up onto a box or bench.
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Get FormTwin — free on the App StoreThe step-up trains the quads and glutes of the stepping leg, with the hamstrings, calves and core stabilising. Because it's single-leg, it also builds balance and irons out strength differences between sides.
Yes — driving up through the heel onto a higher box strongly recruits the glutes. Leaning the torso slightly forward and using a knee-height (or higher) box increases the glute emphasis.
Both are single-leg builders for the quads and glutes. Step-ups are joint-friendly and let you control the load easily; lunges add a stretch under load. They complement each other well.
This guide is general fitness information, not medical advice. Muscle involvement varies with form, grip and individual anatomy. Consult a professional before starting a new program.