What is the dumbbell stiff leg deadlift?
The dumbbell stiff leg deadlift is a hip-hinge exercise performed with minimal knee bend. You hold a dumbbell in each hand, push the hips back, lower the weights along the front of your legs, and stand back up by driving the hips forward. Because the knees stay nearly straight, the hamstrings are stretched under load.
Muscles worked
- Hamstrings: the main target, especially in the lengthened position
- Glutes: assist in extending the hips as you stand
- Erector spinae (lower back): work isometrically to keep the spine neutral
- Forearms and grip: hold the dumbbells
- Core: helps brace the trunk
Benefits
Hamstring strength and size
Loading the hamstrings in a stretched position is a common approach for building them. The stiff-leg style makes the stretch noticeable, which many lifters like.
Strengthens the posterior chain
The hinge pattern strengthens the muscles along the back of the body, which supports many other lifts and everyday tasks such as picking something up.
Beginner-friendly equipment
Dumbbells are easy to set up, forgiving to learn with, and let you start light. You can hold them in front of the thighs or at the sides.
Grip and balance
Holding the weights challenges grip. Single-leg versions add a balance component.
Fixes side-to-side differences
Dumbbells let each side work independently, which can help show and reduce strength differences between the legs.
Good for home or small gyms
You do not need a barbell or rack. Many people can do this with an adjustable pair; see the best home workouts.
Stiff leg deadlift versus Romanian deadlift
The two are very similar and the names are used loosely. The Romanian deadlift is usually described as keeping a soft bend in the knees and stopping when the hamstrings are fully stretched. The stiff-leg deadlift is often described as keeping the knees straighter. In practice, a “stiff” knee should still not be locked out, as this can feel uncomfortable behind the knee. If you are unsure, use a soft knee bend that stays the same throughout.
How to do it
- Stand with feet about hip-width apart, a dumbbell in each hand in front of your thighs.
- Brace your core, pull your shoulders back and down, and keep a slight knee bend.
- Push your hips back as if reaching for a wall behind you. Keep the dumbbells close to your legs.
- Lower until you feel a strong stretch in the hamstrings, usually around mid-shin for many people, or before your lower back starts to round.
- Drive your hips forward to stand tall. Squeeze the glutes at the top without leaning back.
Use a weight you can control for 8 to 12 reps. Start lighter than you expect, and film a set from the side to check your back position.
Common mistakes
- Rounding the lower back. Stop the descent earlier and reduce the load.
- Locking the knees. Keep a soft bend.
- Letting the dumbbells drift forward. Keep them close to the legs.
- Squatting the movement. The hips move back, not just down.
- Overextending at the top. Stand tall, do not lean backward.
Who should be cautious
People with a history of lower back pain, sciatica or recent hamstring injury should talk with a physiotherapist or doctor first. If you feel pain rather than a muscle stretch, reduce the range or switch to another exercise. Our alternatives to deadlifts article lists options.
Sets and reps
A common starting point is 2 to 4 sets of 8 to 12 reps, once or twice a week. Pair it with a curl such as the seated machine curl discussed in seated leg curl benefits. For a wider program, see our guide to exercises for stronger hamstrings.
Quick answers
Does it burn belly fat? No exercise removes fat from one area. For a plan built around overall energy balance, see the burning fat gym routine. Deadlift variations use a lot of muscle, which can contribute to overall energy use, but fat loss depends mainly on your overall diet and activity.
Why are deadlifts restricted at some gyms? Some commercial gyms limit deadlifts, usually due to noise, floor wear and safety policy. Dumbbell and machine alternatives are generally allowed.
Is the deadlift the “queen of exercises”? The nickname is common in lifting culture, but it is an opinion rather than a scientific ranking.