Upper Legs Exercise · Body Weight
One Leg Squat
- Category
- Upper Legs
- Equipment
- Body Weight
- Target
- Glutes
Biomechanical cues verified by the PlanWorkouts Science Review Board under CSCS editorial oversight; see our editorial standards.
The One Leg Squat is a compound upper legs movement designed to train the Glutes with direct engagement of the Hamstrings, Calves.
Operates primarily in the sagittal plane involving knee flexion/extension and hip extension. Peak mechanical tension occurs in the deep lengthened position at the bottom transition. Maintain midfoot balance and an upright torso angle. Executing this with strict form maximizes muscle fiber recruitment while protecting joint structures.
Quick Exercise Facts
Target Muscle Activation
The one-leg squat trains single-leg strength and balance simultaneously, without the counterbalance a pistol squat's extended front leg provides, which tends to make it feel more like a balance drill than a pure strength one at first. Most people need to build ankle and hip stability before adding real depth or load.
How to Do the One Leg Squat
- Start standing with feet shoulder-width apart.
- Lift one leg and extend it forward off the floor.
- Bend the supporting knee and sit your hips back and down as though lowering into a chair.
- Keep your chest lifted and spine straight through the movement.
- Drive through the heel of the standing leg to rise back up.
- Complete your target reps on one side, maintaining smooth control, then switch sides and repeat.
Recommended Sets & Reps by Training Goal
70–80% 1RM · 90–120s rest
85%+ 1RM · 2–3 min rest (Calc 1RM)
50–60% 1RM · 45–60s rest
Biomechanical & Joint Load Cues
Operates primarily in the sagittal plane involving knee flexion/extension and hip extension. Peak mechanical tension occurs in the deep lengthened position at the bottom transition. Maintain midfoot balance and an upright torso angle.
Common Mechanical Mistakes & Form Errors to Avoid
- Knee Valgus (Inward Collapse): Allowing knees to cave inward during the ascent places excessive tensile stress on the MCL and lateral meniscus. Drive knees out in line with second toes.
- Excessive Forward Pitch: Allowing the chest to drop and hips to shoot up turns the squat into a good-morning, transferring load off the quadriceps onto the lumbar erectors.
- Heel Lift & Weight Shift: Shifting balance forward onto the balls of the feet compromises stability and increases patellar tendon strain. Keep weight distributed over midfoot.
Proper Breathing Patterns & Core Engagement
Perform a deep abdominal brace (Valsalva maneuver) into the diaphragm before initiating descent. Hold intra-abdominal pressure through the bottom transition, exhaling past the sticking point on ascent.
Add the One Leg Squat to Your Custom Workout Routine
Build a personalized, science-backed workout plan matching your training goals, equipment access, and schedule.
Injury Modification & Joint Safety
Lifters experiencing acute patellofemoral knee discomfort should moderate depth to parallel or utilize box squats to reduce peak anterior patellar shear. If joint irritation persists, immediately stop and substitute this movement with another exercise from the Upper Legs exercises category.
Muscles Worked
The One Leg Squat primarily targets the Glutes, with Quadriceps as the primary synergist muscle group, along with the Hamstrings, Calves.
More Upper Legs Exercises
All Fours Squad Stretch
Arms Apart Circular Toe Touch (male)
Assisted Lying Glutes Stretch
Assisted Lying Gluteus And Piriformis Stretch
Assisted Prone Hamstring
Assisted Prone Lying Quads Stretch
More Glutes Exercises
Band Bent-Over Hip Extension
Band Hip Lift
Band Lying Hip Internal Rotation
Band Pull Through
Band Seated Hip Internal Rotation
Band Squat
Equipment Alternatives
Don't have body weight? These target the same glutes with different equipment.
FAQ
- What muscles does the One Leg Squat work?
- The One Leg Squat primarily targets the glutes as the primary agonist. Synergist assistance is provided by the quadriceps along with the hamstrings, calves. Maintaining strict biomechanical alignment ensures maximal tension remains focused on the intended muscle fibers rather than shifting to surrounding stabilizer joints.
- What equipment do I need for the One Leg Squat?
- The One Leg Squat is performed using no equipment — just body weight. Ensure all equipment is securely positioned with collars or safety pins locked before loading working sets. If you train in a home gym or minimal setup, explore our equipment-free and resistance band alternatives below.
- What is the most common form mistake on the One Leg Squat?
- The most frequent error is knee valgus (inward collapse): Allowing knees to cave inward during the ascent places excessive tensile stress on the MCL and lateral meniscus. Drive knees out in line with second toes.. Controlling the 2 to 3-second eccentric lowering phase ensures maximal hypertrophic stimulus while shielding connective tissue.
- How many sets and reps should I perform on the One Leg Squat?
- For muscle hypertrophy and size, aim for 3 to 4 working sets of 8 to 12 repetitions at 70% to 80% of your 1RM with 90 to 120 seconds rest. For absolute strength development, prioritize 4 to 5 sets of 3 to 6 heavier reps with 2 to 3 minutes rest.
- What's a good alternative to the One Leg Squat?
- If you don't have access to the space or setup it needs, the Band Bent-Over Hip Extension targets the same glutes using band instead. This alternative replicates the same joint angle and movement plane while allowing you to train effectively with different available gear. You can also substitute it seamlessly in our free Workout Plan Builder.