What you'll gain

• Builds single-leg strength in the quads and glutes.

• Improves balance and coordination under load.

• Surfaces and corrects left-right leg strength imbalances.

Step-by-Step Instructions

1. 1

   Hold a dumbbell in each hand at your sides with arms relaxed and shoulders pulled down and back.

2. 2

   Stand tall with your feet hip-width apart and brace your core to set a stable starting position.

3. 3

   Step forward with one leg into a long lunge, lowering your back knee toward the floor.

4. 4

   Stop when your back knee is an inch above the floor and your front thigh is parallel to the ground.

5. 5

   Drive through the heel of your front foot to push back to a tall standing position.

6. 6

   Repeat the lunge with the opposite leg and continue alternating for the prescribed reps.

Common Mistakes

• Taking too short a step forward, which puts the front knee far past the toes and strains the joint.

• Letting the front knee cave inward, which loads the inside of the joint and weakens the lift.

• Leaning the torso forward over the front leg instead of staying tall and stacked through the trunk.

• Pushing off the back foot to stand instead of driving through the front-leg heel and glute.

About This Exercise

The dumbbell alternating forward lunge loads each leg in turn through a long forward step. The front leg drives back to standing through the quads and glutes while the rear leg controls the descent. Switching sides every rep keeps the cadence flowing and builds balance under fatigue. For leg-day programming in any strength app, this is a workhorse lunge variation. It carries hypertrophy programs, athletic prep tracks, and beginner-friendly leg education modules. The alternating pattern reads especially well in motion, which makes the 3D clip a strong choice for thumbnails and program covers in lower-body content.

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