Single-Leg Hack Squat 101 Video Tutorial
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Exercise Synopsis
Target Muscle Group
Quads
Secondary Targets
Execution
Compound
Force Type
Push (Bilateral)
Required Equipment
Hack Squat Machine
Fitness Level
Intermediate
Variations
None
Alternatives
Timer
Hour
Minute
Second
Stopwatch
00:00:00:00
Overview
The Single-Leg Hack Squat is a lower-body exercise performed on a hack squat machine that primarily targets the quads while also engaging the glutes as a secondary muscle. By using one leg at a time, it emphasizes unilateral strength, balance, and stability, helping to correct muscular imbalances between the legs. The exercise involves positioning one foot on the platform while the other is extended, lowering the weight until the working thigh is parallel to the ground, and then pushing back to the starting position. It is a compound movement that effectively develops leg strength and power while isolating each leg individually for more focused activation.
How to Perform
Adjust the hack squat machine to the weight you want to use, ensuring your back is fully supported against the pad and your shoulders are secured under the shoulder pads.
Position both feet on the platform, then lift your right foot and extend your left leg straight in front of you.
Engage your left leg to press the weight up, gripping the machine handles firmly; this is your starting stance.
Gradually lower the weight by bending your left knee until your thigh is parallel to the platform, keeping your calf engaged, and pause briefly at the bottom.
Press through your left foot to return smoothly to the starting position.
Complete the desired number of repetitions and switch legs if performing a full set for both sides.
★ Bonus: For exercises that involve external weights (such as dumbbells, barbells, or machines), the One Rep Max (1RM) calculator can help you estimate your maximum lifting capacity. Use it to track your strength progress and adjust your training for optimal results.
Tips
Keep your core engaged throughout to maintain stability and prevent lower back strain.
Focus on controlled movements rather than speed to maximize quad activation.
Avoid locking the knee at the top to reduce joint stress.
Ensure your foot placement allows your knee to track over your toes.
Use a weight that challenges you but still allows proper form.
Pause briefly at the bottom to increase time under tension for the quads.
Maintain even pressure through the heel of the working leg to engage glutes.
Avoid leaning forward excessively to prevent unnecessary lower-back involvement.
Keep your shoulders pressed against the pads to ensure correct posture.
Breathe steadily, exhaling as you push up and inhaling as you lower the weight.
How Not to Perform
Do not lift your hips off the back pad, as it shifts tension away from the quads.
Avoid letting your knee collapse inward or outward during the movement.
Do not use excessive weight that forces you to compromise form.
Avoid bouncing at the bottom of the squat, which reduces muscle engagement.
Do not let your working foot roll onto your toes; keep pressure on the heel.
Avoid leaning your upper body forward, which engages the lower back instead of quads.
Do not lock your knee at the top, as it can strain the joint.
Avoid moving too quickly, which decreases control and increases injury risk.
Do not lift the non-working leg off the platform too high, which can destabilize your posture.
Avoid gripping the handles too tightly and tensing your shoulders unnecessarily.
Variations
Variations of fitness exercises refer to different ways of performing a specific exercise or movement to target various muscle groups, intensities, or goals. These variations aim to challenge the body differently, prevent plateaus, and cater to individuals with varying fitness levels.
Alternatives
Alternative exercises in fitness refer to different movements or activities that target similar muscle groups or serve the same training purpose as the primary exercise. These alternative exercises can be used as substitutes when the original exercise is unavailable or challenging to perform due to various reasons such as equipment limitations, injuries, or personal preferences.
