Exercise guide · evidence-graded

Barbell Lunge

The barbell forward lunge is a single-leg exercise in which, with a bar across your upper back, you step forward, sink until both knees are bent to about 90° and push back to standing. It works the quads and glutes of the front leg hardest, with the hip muscles on the outside of the hip holding the pelvis level, and it is the most heavily loaded version of the forward lunge.

Also called: BB Lunge, Barbell Front Lunge, Back-Loaded Forward Lunge · Equipment: barbell · Pattern: squat

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How to do it

Step by step

Set the bar in a rack at about mid-chest height. Step under it and place it across your upper back, on the muscle just below the base of your neck, then grip it firmly and squeeze your shoulder blades together.
Stand up to unrack, take two short steps back and stand tall with your feet hip-width apart. Take a breath and brace your trunk.
Take a long step forward with one leg, keeping your feet hip-width apart as if on two rails. Land heel first, then settle onto the whole foot.
Sink straight down until your back knee is just above the floor and both knees are bent to about 90°. Keep your torso tall, your front heel down and your front knee in line with your second toe.
Push through the whole front foot to drive back up and step back to the start in one movement.
Stand tall and reset your balance, then step out with the other leg, or complete all reps on one side first.
After the last rep, walk the bar forward until it touches the uprights, then bend your knees to set it down into the hooks.

Coaching cues

Step out long, then sink straight down
Front knee in line with your second toe
Tall torso, braced under the bar
Feet on two rails, hip-width apart
Drive back through your whole front foot

In VALDA, these cues are one tap away on the exercise while you train.

Muscles worked

What it trains

Muscle	Role	Evidence
Quadriceps: vastus lateralis	Prime mover	C
Quadriceps: vastus medialis	Prime mover	C
Gluteus maximus	Prime mover	C
Quadriceps: vastus intermedius	Prime mover	D
Quadriceps: rectus femoris	Secondary	C
Adductors	Secondary	C
Hamstrings: biceps femoris (long head)	Secondary	D
Gluteus medius/minimus	Stabiliser	C
Erector spinae	Stabiliser	D

Evidence grades: A = strong research base · B = good · C = limited · D = coaching consensus.

Common faults

What goes wrong, and the fix

Stepping too short

Fix: Step far enough that your front shin is close to vertical at the bottom.

Feet landing on one line

Fix: Keep your feet hip-width apart, as if on two rails, on every step.

Front knee caving in

Fix: Keep your front knee in line with your second toe as you sink and drive up.

Diving forward onto the front leg

Fix: Land first, then sink straight down with your torso tall.

Pushing back off the toes

Fix: Keep your front heel down and push back through the whole foot.

Back knee crashing into the floor

Fix: Sink under control until your back knee is just above the floor.

Programming

What the research says

Muscle growth · first choiceStrengthGeneral fitnessSport performance

Load by goal — Research comparing loads finds maximal strength favours heavier loads, while muscle growth is similar across a wide range of loads when sets are taken close to failure. In lunges, balance often limits the load before the legs do.
Effort — Studies show strength gains are largely insensitive to how close to failure sets are taken, and growth rises as sets get closer to failure along a flattening curve. Many lifters keep loaded lunge sets a rep or two short of failure, when balance and form start to go.
Depth — Full-range training of the legs has produced more strength and muscle growth than partial-range training. A full lunge takes the back knee to just above the floor.
Single-leg and two-leg training — A meta-analysis found single-leg training carried over best to single-leg jumping and two-leg training to two-leg strength. In rugby players, a single-leg squat pattern and the back squat improved squat strength and sprint speed about equally.
Torso angle — In a small EMG study, a slight forward lean of the torso raised glute and hamstring activity compared with an upright torso. EMG shows activity, not growth.

Alternatives · VALDA FLEX

Swap it mid-workout

With VALDA Pro, FLEX offers alternatives like these when you swap an exercise mid-workout.

Log the barbell lunge in VALDA, with these cues one tap away while you train and your history for it in one place.

General information about exercise technique, not medical advice. If you have an injury or a health condition, your healthcare provider is the right person to ask.