Fitness & Exercise

Low Side Lunge: Execution, Benefits, Variations, and Mistakes

By Jordan 8 min read

The low side lunge is a dynamic exercise performed by stepping widely to the side, lowering hips deeply over the bent leg while keeping the other leg extended, effectively targeting hip mobility, inner thigh flexibility, and lower body strength.

How to do low side lunges?

The low side lunge, also known as a deep lateral lunge or Cossack squat variation, is a dynamic exercise that involves stepping widely to the side and lowering the hips deeply towards the heel of the bent leg, while keeping the other leg fully extended, effectively targeting hip mobility, inner thigh flexibility, and lower body strength.

Understanding the Low Side Lunge (Lateral Lunge Variation)

The low side lunge is a powerful multi-planar movement that emphasizes frontal plane motion, distinguishing it from traditional sagittal plane exercises like squats and regular lunges. While a standard lateral lunge focuses on strength and a moderate range of motion, the "low" variant pushes into a deeper range, significantly challenging hip mobility, particularly in the adductor muscles of the straight leg and the hip flexors and extensors of the bent leg. It requires a blend of strength, flexibility, and balance, making it a highly functional exercise for athletic performance and daily movement.

Key Muscles Engaged

The low side lunge is a compound exercise that recruits numerous muscle groups across the lower body and core:

  • Primary Movers (Bent Leg):
    • Quadriceps: Especially the vastus medialis and lateralis, responsible for knee extension.
    • Gluteus Maximus: Powers hip extension during the ascent.
    • Adductor Magnus: Assists in hip extension and stabilization.
  • Primary Movers (Straight Leg):
    • Adductors (Gracilis, Adductor Longus, Brevis, Magnus): Stretched significantly and act as stabilizers.
  • Stabilizers:
    • Hamstrings: Assist in hip extension and knee flexion, stabilize the bent knee.
    • Gluteus Medius & Minimus: Crucial for hip abduction and stabilizing the pelvis, preventing knee valgus (inward collapse) of the bent leg.
    • Erector Spinae & Core Muscles (Rectus Abdominis, Obliques): Maintain a neutral spine and torso uprightness throughout the movement.
    • Ankle Stabilizers: Maintain foot position and balance.

Benefits of Incorporating Low Side Lunges

Integrating low side lunges into your fitness regimen offers a range of significant benefits:

  • Enhanced Hip Mobility and Flexibility: This exercise provides a deep stretch to the adductors and hamstrings, improving overall hip range of motion, which is vital for injury prevention and athletic performance.
  • Improved Lateral Strength and Power: Many daily activities and sports (e.g., basketball, soccer, tennis) involve lateral movements. Low side lunges strengthen the muscles responsible for side-to-side propulsion and deceleration.
  • Reduced Risk of Injury: By strengthening often-neglected lateral stabilizers and improving multi-planar movement capabilities, low side lunges can help prevent injuries related to sudden changes in direction or unbalanced movements.
  • Better Balance and Stability: The unilateral and multi-planar nature of the exercise challenges balance and proprioception, leading to improved overall stability.
  • Functional Movement: It mimics real-life actions like stepping sideways, changing direction, or picking something up from the floor while shifting weight laterally.
  • Targeted Muscle Development: Effectively sculpts and strengthens the inner and outer thighs, glutes, and quadriceps.

Step-by-Step Execution: Mastering the Low Side Lunge

Accurate form is paramount to maximize benefits and minimize injury risk. Follow these steps for proper execution:

  1. Starting Position: Stand tall with your feet hip-width apart, toes pointing forward. Keep your chest up, shoulders back and down, and engage your core by drawing your navel towards your spine. Your gaze should be straight ahead.
  2. Initiate the Movement: Take a large step directly to one side (e.g., to the right) with your right foot. The distance should be wide enough to allow for a deep squat on the stepping leg while keeping the other leg straight.
  3. Lowering Phase (Eccentric): As your right foot lands, immediately begin to shift your weight over that leg. Bend your right knee, pushing your hips back and down as if you are sitting into a chair. Your right knee should track directly over your right toes, avoiding any inward collapse. Simultaneously, keep your left leg completely straight, with the foot flat on the ground and toes pointing forward (or slightly externally rotated if necessary for comfort and depth).
  4. Achieve Depth: Continue to lower your hips until your right thigh is at least parallel to the ground, or even lower if your mobility allows, aiming for your glutes to be close to your heel. You should feel a significant stretch in the inner thigh (adductors) of your straight leg. Maintain an upright torso and neutral spine throughout the movement; avoid rounding your back or excessively leaning forward.
  5. Return to Start (Concentric): Drive powerfully through the heel of your bent (right) leg, pushing off the ground to extend your knee and hip. Simultaneously, pull your right foot back to the starting position, returning to an upright stance with feet hip-width apart.
  6. Repeat: Perform the desired number of repetitions on one side before switching to the other, or alternate sides with each rep.
  7. Breathing: Inhale as you lower into the lunge, and exhale as you push back up to the starting position.

Common Mistakes and How to Correct Them

Even experienced individuals can fall prey to common errors. Be mindful of these and adjust your form:

  • Knee Valgus (Knee Collapsing Inward):
    • Correction: Actively push your bent knee outward, ensuring it tracks in line with your second toe. Focus on strengthening your gluteus medius and minimus. Consider using a resistance band around your knees as a tactile cue during warm-up.
  • Rounding the Back or Excessive Forward Lean:
    • Correction: Engage your core tightly. Imagine a string pulling your sternum upwards to keep your chest lifted. Hinge at your hips, not your lower back.
  • Not Going Low Enough:
    • Correction: This often indicates limited hip or ankle mobility. Practice the movement without weight, focusing on depth. Incorporate dynamic stretches for hip adductors and ankle dorsiflexion into your warm-up.
  • Not Shifting Weight Fully Over the Bent Leg:
    • Correction: Ensure your hips move directly over the bent leg. The movement is a lateral squat, not just a step to the side.
  • Foot of the Straight Leg Lifting Off the Ground:
    • Correction: Keep the entire foot of the straight leg firmly planted. If your heel lifts, it may indicate tight calves or Achilles tendons. Adjust your foot angle slightly outward if needed, but prioritize keeping it grounded.
  • Stepping Too Narrowly:
    • Correction: A wide stance is crucial for achieving the depth and targeting the correct muscles. Experiment to find a comfortable yet challenging width.

Progressive Overload and Variations

Once you've mastered the bodyweight low side lunge, you can increase the challenge:

  • Bodyweight Low Side Lunge: Focus on perfect form and maximum depth.
  • Goblet Low Side Lunge: Hold a dumbbell or kettlebell vertically against your chest. This adds resistance while helping to counterbalance and maintain an upright torso.
  • Dumbbell Low Side Lunge: Hold a dumbbell in each hand at your sides, or just in the hand opposite the stepping leg for an added anti-rotation challenge.
  • Barbell Low Side Lunge: For advanced lifters, placing a barbell across your upper back significantly increases the load, demanding excellent core stability and form.
  • Continuous Low Side Lunges: Instead of returning to the center after each rep, push off the bent leg and step directly into a low side lunge on the opposite side, maintaining continuous movement.
  • Tempo Training: Slowing down the eccentric (lowering) phase (e.g., 3-5 seconds down) increases time under tension and muscle activation.

Who Should and Should Not Perform Low Side Lunges?

  • Suitable For:
    • Athletes in multi-directional sports (basketball, soccer, tennis, martial arts).
    • Individuals looking to improve overall hip mobility and flexibility.
    • General fitness enthusiasts seeking to build comprehensive lower body strength and balance.
    • Those aiming to strengthen often-neglected lateral movement patterns.
  • Considerations/Modifications:
    • Individuals with pre-existing knee pain, hip impingement, or significant balance issues should approach this exercise with caution. Start with a shallower lateral lunge and gradually increase depth as mobility and strength improve.
    • Consult with a qualified healthcare professional or physical therapist if you have any concerns or existing injuries before attempting this exercise.

Integrating Low Side Lunges into Your Routine

Low side lunges are an excellent addition to any lower body or full-body workout.

  • Warm-up: Incorporate dynamic movements like leg swings and shallower lateral lunges to prepare your hips and inner thighs.
  • Workout: Perform 2-4 sets of 8-12 repetitions per side as part of your strength training routine. They can be performed after compound lifts like squats or deadlifts, or as a primary movement on their own.
  • Cool-down: Follow up with static stretches for your adductors (e.g., butterfly stretch, wide-legged forward fold) to improve flexibility further.

By understanding the mechanics, mastering the form, and progressively challenging yourself, the low side lunge can be a cornerstone exercise for building robust, mobile, and powerful lower body strength.

Key Takeaways

  • The low side lunge is a dynamic, multi-planar exercise emphasizing frontal plane motion, crucial for hip mobility, inner thigh flexibility, and lower body strength.
  • It engages primary movers like quadriceps, glutes, and adductors, alongside numerous stabilizers, making it a comprehensive lower body and core exercise.
  • Benefits include enhanced hip mobility, improved lateral strength and power, reduced injury risk, and better balance, contributing to functional movement for daily activities and sports.
  • Proper execution requires a wide side step, deep squat over the bent leg with knee tracking over toes, maintaining a straight extended leg, and an upright, neutral torso.
  • Common mistakes like knee valgus or insufficient depth can be corrected by focusing on form cues, engaging the core, and addressing underlying mobility limitations.

Frequently Asked Questions

What are the primary muscles worked during a low side lunge?

The low side lunge primarily engages the quadriceps, gluteus maximus, and adductor magnus of the bent leg, along with the adductors of the straight leg, and various core and ankle stabilizers.

What are the main benefits of incorporating low side lunges into a workout?

Benefits include enhanced hip mobility and flexibility, improved lateral strength and power, reduced risk of injury, better balance and stability, and targeted muscle development in the lower body.

How can I ensure proper form and avoid common mistakes in low side lunges?

To ensure proper form, focus on a wide step, knee tracking over toes, maintaining a straight extended leg, an upright torso with an engaged core, and full weight shift over the bent leg.

Are there ways to make the low side lunge more challenging?

Yes, you can increase the challenge by adding weights (goblet, dumbbell, or barbell), performing continuous low side lunges, or using tempo training to slow down the lowering phase.

Who should be cautious or avoid performing low side lunges?

Individuals with pre-existing knee pain, hip impingement, or significant balance issues should approach this exercise with caution, starting with shallower lunges or consulting a healthcare professional.