Dumbbell Jefferson Curl
Improve hamstring flexibility & spinal strength! Dumbbell Jefferson Curls require focus & control, but the benefits are worth it. Start light!
The Dumbbell Jefferson Curl mainly works the lower back and hamstrings, with help from the glutes & hips and core. You'll need: dumbbells.
Required Equipment

Dumbbell Jefferson Curl Muscles Worked
Primary
Spinal Erectors (erector spinae); Hamstrings
Secondary
Glutes (gluteus maximus); Deep Core (transverse abdominis)
Dumbbell Jefferson Curl Variations and Alternatives
How to do the Dumbbell Jefferson Curl
Stand on an elevated platform with your feet shoulder-width apart. Hold a dumbbell in each hand with your arms straight and palms facing your body.
Begin the exercise by slowly pushing your hips back and bending at the waist. Keep your legs straight (with a slight bend at the knees to prevent locking them) as you lower the dumbbells towards the floor.
Maintain a flat back and keep your head in a neutral position aligned with your spine. The dumbbells should remain close to your body as you descend.
Lower the dumbbells as far as your flexibility allows without rounding your lower back. You should feel a stretch in your hamstrings and a controlled engagement of your lower back.
Once you have reached the maximum depth of the movement, slowly reverse the direction and bring your torso back to the starting position by extending your hips and waist. Focus on using your hamstrings and glutes to pull yourself back up.
Repeat for the desired number of repetitions, ensuring you maintain proper form throughout the set.
Note: Perform this exercise with caution and start with a lighter weight to ensure proper technique and avoid injury. It is highly beneficial for increasing hamstring flexibility and strengthening the muscles along the spine, but it requires attention to form and control.
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Dumbbell Jefferson Curl FAQs
What muscles does the Dumbbell Jefferson Curl work?
The Dumbbell Jefferson Curl mainly works the lower back and hamstrings, with help from the glutes & hips and core. The main muscles are the erector spinae and hamstrings.
What equipment do you need for the Dumbbell Jefferson Curl?
Dumbbells.
What workout day should the Dumbbell Jefferson Curl go on?
It belongs on pull day in a push/pull/legs routine.
What are some Dumbbell Jefferson Curl variations and alternatives?
Similar exercises include the Alternating Dumbbell Hammer Strict Curl, Dumbbell Bent-Over Curl, Dumbbell Reverse Bent-Over Fly to Hammer Curl and Dumbbell Close-Grip Curl.
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