What is the difference between a split squat and a lunge?

In a split squat your feet stay planted for the whole set and you move straight up and down, while in a lunge you step into and out of the split stance on every rep. The split squat is easier to balance and load, which is why it usually comes before the Dumbbell Reverse Lunge and the Dumbbell Walking Lunge.

How is it different from a Bulgarian split squat?

Here both feet are on the floor, so the back leg shares more of the load and balance is easier. The Dumbbell Bulgarian Split Squat rests the back foot on a bench, which puts more of the work on the front leg and stretches the rear hip further, so it is a good next step once this version feels solid.

How long should my stance be?

Start with the feet about one leg length apart, so the front heel stays flat and the back knee can reach just above the floor. A study of barbell split squats in 20 physically active young men found that lengthening the stance from half a leg length to 1.2 leg lengths raised the peak hip extension load by about 16% and lowered the knee extension load by about 15%, with only a limited effect on quadriceps activity. The researchers also found the longest stance harder to control, so stretching the stance past about one leg length adds little.

Should my back knee touch the floor?

Lower until the back knee hovers just above the floor, or lightly touches a pad if you use one as a depth target. Dropping or bouncing onto the knee takes tension off the legs and can bruise the kneecap.

Is it okay for my front knee to go past my toes?

Yes, some forward knee travel is normal as long as the front heel stays flat and the knee tracks over the middle toes. If the front of the knee is sore, lengthen the stance so the shin stays more upright rather than forcing it perfectly vertical, which shifts stress onto the back knee.

Dumbbell Split Squat

What Is the Dumbbell Split Squat?

Dumbbell Split Squat is a compound exercise that primarily targets the quads and glutes and also engages the adductors, hamstrings and calves, while the core and grip hold the torso and the weights steady. It is a beginner-level movement performed in a fixed split stance with a dumbbell in each hand, lowering the back knee toward the floor and standing back up without moving the feet.

Because both feet stay planted for the whole set, the split squat is the most stable member of the lunge family. There is no step to control and no landing to absorb, so it is easier to learn, easier to balance and easier to load than a Dumbbell Reverse Lunge or a Dumbbell Walking Lunge. That makes it a common first single-leg exercise and a reliable accessory after the main squat or deadlift of a session. Training one leg at a time also makes a left to right difference in strength or control easy to spot and to work on, and holding the dumbbells at your sides keeps the load off the spine.

The front leg does most of the work. Its quads straighten the knee while the glutes and adductors extend the hip, and the back leg helps with balance and a smaller share of the push. Stance length changes the emphasis: a longer stance with a slight forward lean from the hips shifts more work to the glutes and hamstrings, while a shorter stance with a tall torso lets the front knee travel further forward and keeps more of the load on the knee and quads. Raising the back foot on a bench, as in the Dumbbell Bulgarian Split Squat, moves more of the load onto the front leg, and raising the front foot, as in the Dumbbell BOSU Front-Foot Elevated Split Squat, adds depth and balance demand.

The split squat suits beginners, people returning to training and experienced lifters who want heavy single-leg work without a barbell on their back. If balance is the limiting factor, start with body weight and a hand on a wall or rack, or build the pattern first with the Kettlebell Goblet Squat and the Dumbbell Step-Up. Once you can control full-depth reps with steady dumbbells, the rear-foot elevated and stepping variations are the natural next steps.

Muscles Worked

MuscleActivation

Gluteus Maximus: Primary
Vastus Lateralis: Primary
Vastus Medialis: Primary
Adductor Magnus: High
Rectus Femoris: High
Biceps Femoris: Medium
Gluteus Medius: Medium
Erector Spinae: Low
Soleus: Low
Upper Trapezius: Low

Instructions

Stand tall holding a dumbbell in each hand at your sides, palms facing your body and arms straight.
Step one foot forward into a split stance about one leg length long, keeping the feet about hip-width apart side to side.
Plant the front foot flat, pointing forward, and rise onto the ball of the back foot with the back heel lifted.
Brace your core, lift your chest and pull your shoulders down so the dumbbells hang straight.
Bend both knees and lower straight down until the back knee is just above the floor and the front thigh is about parallel to it.
Keep the front heel down and the front knee tracking over the middle toes as you lower.
Push through the whole front foot to stand back up, keeping your torso tall and both feet in place.
Finish all reps on one leg, then switch sides and match the reps.

Common Mistakes

Tightrope stance
Placing the front foot directly in line with the back foot leaves a narrow base that makes you wobble, so keep the feet about hip-width apart as if standing on two train tracks.
Stance too short
A cramped stance lifts the front heel and drives the knee far forward, loading the front of the knee, so lengthen the stance until the front heel stays flat at the bottom.
Front knee caving inward
Letting the front knee drift toward the midline stresses the inside of the knee and loses glute tension, so keep it tracking over the middle toes.
Dropping onto the back knee
Letting the back knee crash into the floor or bouncing off it takes tension off the legs and bruises the knee, so lower under control until it hovers just above the floor.
Pushing off the back leg
Driving mainly through the back foot turns the lift into a rear-leg exercise, so push through the whole front foot and use the back foot mostly for balance.
Torso collapsing forward
Letting the chest drop and the dumbbells drift in front of you shifts load to the lower back, so keep the chest up and the weights hanging straight down.

Injuries

Dumbbell Split Squat is a low risk exercise when performed with proper technique. Both feet stay on the floor, the dumbbells hang at your sides rather than resting on the spine, and a set can be ended at any point by simply standing up and setting the weights down.

The front knee takes most of the strain. A stance that is too short drives the front knee far forward and lifts the heel, which loads the front of the knee, and letting the knee cave inward adds stress at the inside of the joint. The back knee can also get sore, either from dropping it hard into the floor or from forcing the front shin to stay perfectly vertical, which shifts load onto the back knee. A stance about one leg length long, the front heel planted, the knee tracking over the middle toes and a controlled descent keep both knees comfortable. Overarching the lower back to stay upright can pinch the lower back and the front of the rear hip, so keep the ribs down and the pelvis level.

To make it easier, use body weight only, hold a wall or rack for balance, shorten the range of motion or place a pad under the back knee as a depth target. To make it harder, add load, slow the lowering phase, pause at the bottom or progress to the Dumbbell Bulgarian Split Squat and then to stepping lunges such as the Dumbbell Reverse Lunge.

Stop the set if you feel sharp pain in either knee, pain at the front of the knee that builds with each rep, a pinch deep in the hip or pain in the lower back. Knee pain that returns every session is a reason to have the knee assessed before loading it further.

Overview

Primary Focus: Quads and glutes
Equipment: Dumbbell
Modality: Strength
Difficulty: Beginner

Alternative Exercises

Other Names for the Dumbbell Split Squat

The Dumbbell Split Squat is also known as:

Dumbbell Static Lunge
Dumbbell Stationary Lunge

Frequently Asked Questions

Q: What is the difference between a split squat and a lunge?: In a split squat your feet stay planted for the whole set and you move straight up and down, while in a lunge you step into and out of the split stance on every rep. The split squat is easier to balance and load, which is why it usually comes before the Dumbbell Reverse Lunge and the Dumbbell Walking Lunge.
Q: How is it different from a Bulgarian split squat?: Here both feet are on the floor, so the back leg shares more of the load and balance is easier. The Dumbbell Bulgarian Split Squat rests the back foot on a bench, which puts more of the work on the front leg and stretches the rear hip further, so it is a good next step once this version feels solid.
Q: How long should my stance be?: Start with the feet about one leg length apart, so the front heel stays flat and the back knee can reach just above the floor. A study of barbell split squats in 20 physically active young men found that lengthening the stance from half a leg length to 1.2 leg lengths raised the peak hip extension load by about 16% and lowered the knee extension load by about 15%, with only a limited effect on quadriceps activity. The researchers also found the longest stance harder to control, so stretching the stance past about one leg length adds little.
Q: Should my back knee touch the floor?: Lower until the back knee hovers just above the floor, or lightly touches a pad if you use one as a depth target. Dropping or bouncing onto the knee takes tension off the legs and can bruise the kneecap.
Q: Is it okay for my front knee to go past my toes?: Yes, some forward knee travel is normal as long as the front heel stays flat and the knee tracks over the middle toes. If the front of the knee is sore, lengthen the stance so the shin stays more upright rather than forcing it perfectly vertical, which shifts stress onto the back knee.