Step by step instructions, muscle activation and variants for the Single Leg Hack Squat.
A unilateral variation of the hack squat performed on a sled machine, placing the entire load on one leg at a time. This challenges quadriceps strength and single-leg stability more intensely than the bilateral version, making it an advanced machine-based leg exercise.
The Single Leg Hack 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.
