What Are Lunges?
Lunges — one of the most fundamental unilateral leg exercises, in which one leg steps forward (or backward, to the side) and a squat is performed. It is one of the best exercises for leg muscle balance, since each leg works separately, correcting strength imbalances. In addition, lunges are excellent for developing balance and coordination.
🎯 Primary Muscles
Quadriceps femoris, gluteus maximus, hamstrings.
🔧 Secondary Muscles
Adductors, calves, core stabilizers.
⚡ Exercise Type
Unilateral compound exercise. Corrects muscle imbalance between the legs.
📊 Difficulty Level
Light–moderate. Excellent for beginners with body weight, and for advanced lifters with weights.
📋 Proper Execution Technique
1
Starting stance: Stand upright, feet hip-width apart. Arms at your sides, on your hips, or holding dumbbells. Back straight, chest lifted.
2
Step Forward: Step forward with one leg — the step must be large enough that the front leg's knee is directly above the ankle.
3
Lowering: Slowly lower yourself, bending both knees to ~90°. The front thigh is parallel to the floor. The rear knee almost touches the floor.
4
Bottom Position: The front knee is directly above the ankle — do not let it pass the toes. The torso is vertical, not leaning.
5
Ascent: Push firmly through the heel of the front leg to return to the starting position. Use the strength of the front leg.
6
Alternating: Repeat with the same leg or alternate legs each time. Both strategies are effective.
💪 Which Muscles Work?
| Muscle Group | Muscle | Role |
|---|---|---|
| Thighs (Front) | Quadriceps: vastus lateralis, medialis, intermedius, rectus femoris | Primary driver in the front leg |
| Glutes | Gluteus maximus muscle (gluteus maximus) | Extends the hips in the front leg |
| Thighs (back) | Hamstrings: biceps femoris, semitendinosus, semimembranosus | Stabilizes the knees, controls the descent |
| Adductors | Adductor magnus, longus | Stabilizes the legs |
| Torso | Abs, erector spinae | Keeps the torso vertical |
| Calves | Gastrocnemius, soleus | Stabilizes the ankles |
⚠️ Most Common Mistakes
- Step Too Short: The knee passes the toes, overloading the knee joint. Solution: a larger step, knee above the ankle.
- Torso leaning: The body leans forward. Solution: chest up, gaze straight ahead.
- Knee Falling Inward: The front knee collapses inward (valgus). Solution: push the knee outward.
- Instability: Swaying from side to side. Solution: brace your core, start without weight.
- Insufficient Range of Motion: Insufficient descent. Solution: reduce the weight, increase depth.
- Pushing Off With the Rear Leg: Instead of using the strength of the front leg, the rear leg is used — most of the benefit is lost.
🔄 Most Popular Variations
| Variation | Description | Difficulty |
|---|---|---|
| Reverse Lunges | Stepping backward instead of forward — safer for the knees, easier for beginners. | Lightweight |
| Walking Lunges | Walking lunges — you walk across the gym, performing a lunge with each step. | Intermediate |
| Side Lunges | Side lunges — a step to the side. Focus on the adductor muscles. | Intermediate |
| Bulgarian Split Squat | The rear leg is elevated on a bench. High load on the front leg. | Intermediate |
| Curtsy Lunges | The rear leg crosses behind the front leg. Focus on the lateral glutes. | Intermediate |
| Jumping Lunges | Jumping lunges — explosive power and an intense cardio load. | Hard |