Dumbbell Sissy Squats
Loaded sissy squat with a dumbbell at the chest — extreme quad isolation through forward knee travel, brutal at any depth.
Level: Foundation
Primary: Quads
Movement: Compound
Tags: Squat
Type: Strength (Weight Lifting)
Equipment: Dumbbell
Sports: Basketball Football Rugby Track and Field Volleyball
Target muscles
The quadriceps take essentially all of the load — the sissy squat's extreme knee flexion with the hips locked in extension turns it into pure quad work. The hip flexors hold the hip extension. The trunk braces against the dumbbell at the chest. The calves work to maintain the on-the-balls-of-the-feet position. As a quad isolator, this is one of the most direct movements available — the loaded version takes the bodyweight sissy squat from a quad burn to a quad bomb.
How to perform
Setup
Hold a dumbbell against the chest with both hands. Stand with feet hip-width apart. Rise onto the balls of the feet (heels lifted slightly). Trunk braced.
Execution
Lean backward while bending the knees forward — the knees travel far past the toes, the hips stay locked in extension (hips don't bend). Lower until the quads are screaming and the heels are about to come up off the floor more aggressively. Drive back up by extending the knees. The torso stays in line with the thighs throughout — leaning back as the knees come forward. The dumbbell stays at the chest.
Common mistakes
- Bending at the hips. The hips stay locked; only the knees bend.
- Going too heavy. The sissy squat's quad load is brutal at moderate weights.
- Heels coming all the way off the floor. Slight elevation is fine; full toe-stand is unstable.
- Cutting depth too short. The deep position is what loads the quads.
- Doing it without first having sufficient quad and knee tendon health. The load on the patellar tendon is real.
Progressions and regressions
Regress to bodyweight sissy squats until the pattern and strength are dialed. Use a wall behind for support if balance is a problem. To progress, increase dumbbell weight, work pause sissy squats (3-second pause at the bottom), or move to belt squats with similar mechanics.
Programming notes
Excellent quad isolator. 3-4 sets of 6-10 reps. Once or twice a week. The patellar tendon load is significant; build into volume gradually. Pair with squats and leg presses for complete quad development.
