Single Leg Squat (Pistol)
The Single Leg Squat (Pistol) builds full lower-body strength, balance, and control by lowering and standing up on one leg.
Single Leg Squat (Pistol)
The Single Leg Squat (Pistol) is an advanced bodyweight exercise that requires you to squat to full depth on one leg while the other leg stays extended in front of you. No external load is needed — your own body weight provides more than enough challenge when balanced on a single limb. This movement tests quad and glute strength, ankle mobility, hip flexibility, and balance all at once.
Unilateral exercises like the pistol squat expose and correct side-to-side strength imbalances that bilateral movements can mask. The quads and glutes handle the majority of the load, with the hamstrings providing support throughout the range of motion. Hip-dominant single-leg work produces high levels of gluteus maximus activation (Neto et al., 2020), and the balance demand recruits stabilizing muscles around the ankle, knee, and hip.
Building up to a full pistol squat takes time. Start with assisted variations — holding a doorframe or using a counterweight — and gradually reduce the support as your strength and mobility improve. Single-leg balance training produces meaningful improvements in lower-limb stability and functional movement quality (Sadeghi et al., 2021). The pistol squat is a reliable benchmark of lower-body strength and control that benefits athletes and general fitness enthusiasts alike.
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Technique and form
How to perform the Single Leg Squat (Pistol)
- Stand tall with your feet together, arms extended in front at shoulder level for counterbalance, and shift your weight to your right foot.
- Lift your left leg straight out in front of you, keeping your foot flexed and leg as straight as possible while maintaining a neutral spine.
- Inhale as you begin to bend your right knee, pushing your hips back as if sitting in a chair while keeping your chest up and extended leg parallel to the floor.
- Maintain tension in your supporting leg's quadriceps and glutes as you continue lowering your body, keeping your weight centered over the middle of your supporting foot.
- Descend until your hamstring touches your calf or as low as possible while maintaining balance, ensuring your supporting knee tracks in line with your toes.
- Pause briefly at the bottom position, keeping your core engaged and back straight to prevent rounding of the spine.
- Exhale forcefully as you push through your heel to extend your knee and hip, driving back up to the starting position without letting your extended leg touch the ground.
- Complete all repetitions on one leg before switching to the other side, maintaining proper breathing and tension throughout the movement.
Important information
- If you're unable to perform the full range of motion, use a bench or box behind you as a depth gauge, gradually decreasing its height as you progress.
- Keep your supporting foot flat on the ground throughout the entire movement—rising onto your toes indicates inadequate ankle mobility or strength.
- Maintain a forward gaze and upright torso to prevent excessive forward lean which can strain your lower back.
- Practice near a wall or sturdy object for support if balance is challenging, gradually reducing assistance as your stability improves.
Common Mistakes: Single Leg Squat (Pistol)
Benefits of the Single Leg Squat (Pistol)
Muscles Worked: Single Leg Squat (Pistol)
The Single Leg Squat (Pistol) is a compound exercise that engages multiple muscle groups working together. Here's how each muscle contributes to the movement.
Primary muscles
Quads — Your front of your thighs (quads) extend your knees and drive the movement upward. These are the main muscles doing the heavy lifting during the Single Leg Squat (Pistol).
Glutes — Your glute muscles generate hip power and keep your pelvis stable. This is the main muscles doing the heavy lifting during the Single Leg Squat (Pistol).
Secondary muscles
Hamstrings — Your back of your thighs (hamstrings) control the lowering phase and assist the hips. While not the main focus, these muscles play an important supporting role.
The Single Leg Squat (Pistol) primarily works 2 muscles with 1 supporting muscle assisting the movement.
Risk Areas
FAQ - Single Leg Squat (Pistol)
Pistol squats demand exceptional unilateral strength, balance, and mobility all at once. By supporting your entire body weight on one leg through a full range of motion, you eliminate the compensation patterns that bilateral squats allow, forcing each leg to develop strength and stability independently.
Start with assisted variations like holding a TRX strap, squatting to a bench, or using a counterweight held in front of you. Focus on building single-leg strength through shallower ranges before attempting the full movement, and work on ankle mobility and hamstring flexibility separately to address common limitations.
For most trainees, 1-2 sessions per week is sufficient to develop the skill while allowing adequate recovery. Start with 2-3 sets of 3-5 reps per leg, focusing on quality over quantity, and ensure at least 48 hours between sessions targeting the same movement pattern.
The most frequent errors include rounding the lower back at the bottom position, allowing the knee to collapse inward, lifting the heel off the ground, or rushing through the movement. Focus on maintaining a neutral spine, tracking your knee over your middle toe, and keeping your weight centered through your entire foot.
While pistol squats deliver intense unilateral development, they shouldn't completely replace traditional weighted squats in a comprehensive program. Use pistols to address asymmetries, improve balance, and as a metabolic stimulus, but incorporate loaded bilateral training for maximum strength and mass development.
Scientific References
Gluteus Maximus Activation during Common Strength and Hypertrophy Exercises: A Systematic Review
Neto WK, Soares EG, Vieira TL, et al. · J Sports Sci Med (2020)
Marzuca-Nassr GN, Alegría-Molina A, SanMartín-Calísto Y, et al. · Int J Sport Nutr Exerc Metab (2024)
Sadeghi H, Jehu DA, Daneshjoo A, et al. · Sports Health (2021)
Sources are peer-reviewed academic publications from PubMed.
Single Leg Squat (Pistol)
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