Lunges Guide - Unilateral Leg Training

Complete guide to perfecting your lunge technique

Master lunges with our step-by-step guide. Learn proper form for forward, reverse, and walking lunges. Use Spotwell's AI form analysis to perfect your lunge technique and build balanced leg strength.

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Step-by-Step Guide

  1. 1

    Starting Position

    Stand tall with feet hip-width apart. Keep your core braced and chest up.

  2. 2

    Step Forward

    Take a large step forward with one leg. Your front foot should land flat, and your back foot should be on the ball of your foot.

  3. 3

    Lower

    Lower your body by bending both knees. Your front knee should track over your ankle, and your back knee should nearly touch the ground.

  4. 4

    Drive Up

    Push through your front heel to return to the starting position. Keep your torso upright throughout.

  5. 5

    Alternate

    Repeat with the opposite leg. Complete all reps on one side before switching, or alternate legs.

Exercises Included

Forward Lunges

Sets: 3-4

Reps: 10-12 per leg

Rest: 60-90 seconds

Targets quads, glutes, and hamstrings. Great for building unilateral strength.

Reverse Lunges

Sets: 3-4

Reps: 10-12 per leg

Rest: 60-90 seconds

Easier on the knees than forward lunges. Still targets the same muscles.

Walking Lunges

Sets: 3

Reps: 10-15 per leg

Rest: 90 seconds

Dynamic movement that builds leg strength and coordination.

Pro Tips

  • Keep your front knee tracking over your ankle - don't let it cave inward.
  • Maintain an upright torso - don't lean too far forward.
  • Step far enough forward so your front thigh is parallel to the ground at the bottom.
  • Use Spotwell's AI form analysis to ensure proper lunge technique and prevent knee pain.
  • Add weight (dumbbells or barbell) once you've mastered bodyweight lunges.

Frequently Asked Questions

Are lunges better than squats?

Neither is strictly better - they complement each other. Squats let you load heavier and build overall leg mass, while lunges train each leg independently, which helps fix strength imbalances and improves balance and stability. Most well-rounded leg programs include both.

How many lunges should I do?

For strength and muscle, aim for 3 to 4 sets of 8 to 12 reps per leg, 1 to 2 times per week. Beginners can start with bodyweight lunges and add dumbbells once form is solid. Spotwell can auto-count your reps using the iPhone camera so you can focus on technique instead of tracking numbers in your head.

Why do my knees hurt when I lunge?

Knee pain during lunges is usually a form issue - often the front knee caving inward or drifting far past the toes. Keep your front knee tracking over your ankle, take a large enough step, and lower under control. If pain persists despite good form, reverse lunges are gentler on the knees than forward lunges.

Do lunges make your butt bigger?

Yes, lunges are an effective glute exercise because they load the glutes through a deep range of motion, especially at the bottom of the movement. Combined with progressive overload and adequate protein, they help build the glutes along with the quads and hamstrings. Reverse and walking lunges tend to emphasize the glutes slightly more.

Should I do walking lunges or stationary lunges?

Both work well - walking lunges add a dynamic, coordination-focused element and are great for building endurance, while stationary lunges let you focus on controlled reps and are easier to load heavy. Beginners often start with stationary or reverse lunges to master the pattern before progressing to walking lunges.

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