How to Do Lunges

Quick answer: To do a lunge, step one foot forward or backward, keep your torso tall, and lower until both knees bend to roughly 90 degrees. Push through the front heel to return. Lunges train the quads, glutes, hamstrings, and adductors one leg at a time, which exposes and fixes side-to-side strength gaps.

You finish a set of walking lunges, walk back to your bag, and open your notes app. Then you stall. Was that 12 reps, or 12 per leg? Did you count steps or pairs?

Every other lift has an obvious number. Lunges have two, and most people write down neither properly.

What muscles do lunges work?

A lunge is a quad and glute movement with the hamstrings, adductors, and calves holding you steady. The front leg produces most of the force while the rear leg controls balance and takes some of the load through the hip.

Here is the breakdown:

• Quadriceps. The front-leg quads extend the knee out of the bottom position and take the biggest share of the work.
• Gluteus maximus. The front hip extends against a stretched position, so the glutes fire hard, especially on longer steps and reverse lunges.
• Hamstrings and adductors. These stabilize the knee and assist hip extension on the way up.
• Calves and core. Your rear calf and your trunk fight to keep you upright and stop the torso twisting toward the front leg.

Step length changes the emphasis. A short step keeps the shin angled forward and loads the quads. A long step opens the hip and shifts work toward the glutes and hamstrings. Neither is wrong, but pick one and stay consistent so your logged reps compare with each other.

How do you do a lunge with good form?

Three things decide whether a lunge feels solid or wobbly: stance width, step length, and torso position. Get those right and the rest looks after itself.

Set your stance

Stand tall with your feet hip-width apart, not on a tightrope. Most people lunge with their feet in a single line, which removes all your side-to-side balance and turns the set into a circus act.

Keep about the width of your hips between your front and back foot. Hold your ribs down, brace your midsection lightly, and look straight ahead.

Step and lower

Take a step long enough that your front shin stays close to vertical at the bottom. Lower straight down by bending both knees until your front thigh is roughly parallel to the floor and your back knee hovers just above it.

Let the back heel come off the floor naturally. Your torso should stay upright or lean very slightly forward from the hips, not fold over the front thigh.

Drive back up

Push through the whole front foot with the weight in your heel and midfoot. Stand up in one smooth motion without slamming the back knee down on the next rep.

Breathe out on the way up, reset your balance at the top, then go again. Balance is part of the exercise, so a brief pause at the top is a feature, not a delay.

Which lunge variation should you do?

Each version changes the balance demand and where the load lands, so choose one to match your goal and your knees. They are not interchangeable, and mixing them randomly makes your logs meaningless.

Forward lunge. You step forward and return. This is the hardest on the knees because you have to absorb your bodyweight moving forward, and it demands the most eccentric control from the front leg. Good for athletes, harsh for cranky knees.

Reverse lunge. You step backward and return. The front foot stays planted, so there is no impact to absorb and the shin angle stays friendly. Most lifters find the reverse lunge the most comfortable and the easiest to load heavy, and it leans slightly more glute-dominant.

Walking lunge. You step forward and keep going, alternating legs across the floor. Great for conditioning and for building work capacity, but the moving target makes rep counting a mess and heavy loads awkward.

Static lunge (split squat). You set your feet once and go up and down in place for all reps. Removing the step removes the balance challenge, which means you can focus on the leg itself and add real load. If that appeals, the split squat guide covers it in full, and the Bulgarian split squat is the same idea with the rear foot elevated.

What are the most common lunge mistakes?

Nearly every bad lunge comes from one of four habits. Fix these and the movement stops feeling like a balance test.

• Tightrope feet. Landing with both feet on one line kills your lateral stability. Keep hip-width space between them.
• Step too short. A short step drives the knee far past the toes and puts the whole load through the kneecap. Step further out.
• Leaning over the front leg. Folding forward turns the lunge into a bad good morning. Stay tall and lower your hips, not your chest.
• Crashing the back knee. Slamming into the floor means you are dropping, not lowering. Control the descent for two seconds and stop just above the ground.

One more, less obvious. Doing all your reps on the strong leg first and then quitting early on the weak one. That makes your logs look symmetrical while your legs get less so.

How do you start and progress lunges?

Add balance first, then reps, then load. The lunge punishes rushing more than most lifts because instability, not strength, is usually the limiter early on.

Here is a five-step plan you can start this week:

1. Master the static lunge with bodyweight. Two sets of 10 per leg, feet planted, no stepping. If you cannot hit clean depth without wobbling, stay here.
2. Move to reverse lunges, still bodyweight. Three sets of 10 per leg. Stepping back adds the balance demand without the impact of stepping forward.
3. Add a goblet hold. One dumbbell or kettlebell at your chest for three sets of 8 to 10 per leg. The front-loaded weight actually helps you stay upright.
4. Switch to dumbbells at your sides. Once the goblet hold feels easy, a dumbbell in each hand lets you load much heavier and stops the grip limiting you first.
5. Pick a variation and run double progression. Add reps until you hit the top of your range on both legs, then add weight and drop back to the bottom of the range.

Progress the weaker leg first and match the stronger leg to it. If your right side does 10 and your left manages 8, you do 8 on both. That is how the gap closes.

For a rough strength reference point between sides, plug a heavy set into the free one rep max calculator and compare the estimates leg by leg.

How should you log lunges?

Log reps per leg, name the variation, and record the two sides separately when they differ. A line that says "lunges 3x12" is close to useless six weeks later.

The problem is real. "Lunges 20kg 3x10" could mean 10 total steps or 10 per leg, and forward lunges at 20kg are a completely different exercise from reverse lunges at 20kg. Unilateral work needs more detail than a bilateral lift, and most tracking methods were never built for it.

Paper and notes apps let you write whatever you want, including left and right, but they never turn it into a trend. Traditional gym apps chart things, then force one number per set and make you dig through a menu to find "reverse lunge" instead of "lunge".

Keep writing notes, get the charts anyway

If you log in Apple Notes or a paper journal, the instinct is sound. Typing a line between sets beats tapping through dropdowns while your heart rate is still up.

Gym Note Plus reads that plain text and builds the tracking around it. You keep writing sessions the way you already do:

• Left and right stay separate. Write L and R in your line and each side gets its own history.
• Variations stay distinct. Reverse lunges and walking lunges track as different exercises because you named them differently.
• No template setup. Change the exercise by typing different words.
• Your shorthand already works. Reverse lunge 20kg L 3x10 / R 3x8 needs no translation.

Paste a real session into the free notes to workout translator and see it charted before installing anything.

Lunges exist to show you which leg is behind. If your log records one number for both, you have done the hard work and thrown away the answer.

Frequently Asked Questions

Are lunges better than squats?

Lunges are not better than squats, they answer a different question. Squats let you load both legs heavily for maximum strength, while lunges train each leg alone and reveal imbalances the barbell hides. Most programs benefit from a heavy bilateral lift such as the back squat plus a lunge variation for single-leg work.

How many lunges should I do?

For most lifters, three sets of 8 to 12 reps per leg is a productive range for lunges, done once or twice a week. Beginners should start with two sets of 10 bodyweight reps per leg and add load only once depth and balance are clean. Count reps per leg, never total steps.

Are forward or reverse lunges better?

Reverse lunges suit most lifters better than forward lunges because the front foot stays planted, which removes the impact of stepping forward and keeps the shin angle knee-friendly. Forward lunges demand more eccentric control and carry more athletic carryover. Anyone with sensitive knees should default to reverse lunges and load them progressively.

Why do lunges hurt my knees?

Lunge knee pain usually comes from a step that is too short, which drives the knee well past the toes and concentrates load on the kneecap. Lengthen the step so the front shin stays near vertical, control the descent rather than dropping, and switch from forward to reverse lunges to remove the forward impact.

Do lunges build muscle?

Lunges build muscle in the quads, glutes, hamstrings, and adductors when loaded and progressed like any other lift. Because the lunge trains one leg at a time, each side receives close to full load at a fraction of the total weight, which grows muscle with less spinal compression than a heavy back squat.

How do I track lunges properly?

Track lunges by recording the variation, the load, and the reps for each leg separately, for example "reverse lunge 20kg L 3x10 R 3x8". Naming the variation matters because forward, reverse, walking, and static lunges progress at different rates. Tools such as Gym Note Plus chart both sides from a plain-text line.

Final Takeaways

• Keep your feet hip-width apart. Lunging on a tightrope creates a balance problem you do not need.
• Step long enough. A vertical front shin protects the knee and puts load where it belongs.
• Pick one variation and stay with it. Reverse for comfort and load, forward for athleticism, walking for conditioning, static for pure strength.
• Progress balance, then reps, then weight. Match the strong leg to the weak one until the gap closes.
• Write reps per leg, every time. The whole value of the lunge is the difference between your sides, so record it.