Exercise movement reviewed by:Marie Braga, PT, DPT, CSCS

How Iridium Programs This

Iridium credits dumbbell lunges toward both your quadriceps and glute volume targets, factoring in the high metabolic cost of this movement against your Maximum Recoverable Volume. Because performing sets on each leg doubles the duration, the AI calculates this time demand to ensure your total workout fits within your specified schedule. Progressive overload is managed by analyzing your RPE trends to determine exactly when to increase weight without compromising systemic recovery.

Form Cues

Keep your torso upright and core engaged throughout the movement
Step forward far enough to create 90-degree angles at both knees
Drive firmly through the heel of your front foot to return to standing
Keep your front knee aligned with your second toe
Lower your back knee straight down toward the floor under control

Don't

Don't let your front knee cave inward
Don't slam your back knee into the ground
Don't step so narrow that you feel like you are walking on a tightrope
Don't allow your front heel to lift off the floor
Don't round your shoulders or upper back forward

Common Mistakes

Taking steps that are too short or cramped
Walking on a tightrope (feet aligned linearly)
Letting the front knee collapse inward
Leaning too far forward at the waist
Pushing off the toes instead of the heel

Muscles Worked

This exercise is a powerhouse for the lower body, primarily driving hypertrophy in the quadriceps and gluteus maximus. It also heavily recruits the adductors and hamstrings for stability, while the core muscles work constantly to maintain an upright torso against the offset weight.