Step by step instructions, muscle activation and variants for the Single Leg Low Box Squat.
The single leg low box squat is an advanced unilateral lower body exercise where you squat down on one leg until seated on a low box, then stand back up without momentum. The box provides a depth target and a brief pause, removing elastic energy and demanding pure leg strength, balance, and control.
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The Single Leg Low Box Squat is a foundational movement that builds strength and muscle through controlled, progressive overload. Train it 1 to 2 times per week with 3 to 5 working sets per session, gradually adding weight or reps as form holds up.