Jefferson Curl
Primary
Hamstrings
Secondary
Lower Back, Calves
Equipment
Dumbbell
Difficulty
Intermediate
Type
Hinge
NASM-CPT, CSCS certified trainers. Every guide is built from peer-reviewed research and real coaching experience.
Use for mobility and flexibility work. The Jefferson Curl — a compound hip hinge movement — is one of the most effective ways to train your hamstrings, with secondary work on your Gastrocnemius.
Everything You Need to Know About the Jefferson Curl
The Jefferson Curl is a intermediate difficulty exercise that targets your Hamstrings and Erector spinae. It's a popular choice for building strength and muscle in these areas. When should you use it? Use for mobility and flexibility work. This timing makes the most of your workout and helps you get better results. Who is this for? Intermediate lifters wanting flexibility. Whether you're just starting out or working toward a specific goal, this exercise fits into your routine.
Jefferson Curl — targeted muscles
Primary
Secondary
Stabilizers
How do you perform the Jefferson Curl?
- 1
Stand on elevated surface holding light weight.
- 2
Start upright with good posture.
- 3
Round spine vertebra by vertebra forward.
- 4
Let weight hang and reach below platform level.
- 5
Slowly reverse the motion vertebra by vertebra.
- 6
Return to standing with spine neutral.
What are the best tips for the Jefferson Curl?
Mobility exercise, not strength exercise.
Use very light weight.
Move slowly with control.
Common Jefferson Curl mistakes
Using too much weight.
Loading more weight than you can control on the Jefferson Curl forces compensatory movement patterns that bypass your Hamstrings. Drop the weight until you can perform every rep with clean form — your results will actually improve.
Moving too fast and losing control of the movement.
Rushing through the Jefferson Curl reduces the time your Hamstrings spends under tension — which is one of the main drivers of growth. Aim for a controlled 2-second lowering phase on every rep.
Not segmented spine movement.
Hip hinge movements like the Jefferson Curl demand precise mechanics. This mistake puts your lower back in a vulnerable position. Drive through your hips and let your Hamstrings control the movement.
Jefferson Curl — who it's best for
Intermediate lifters wanting flexibility.
How to Program the Jefferson Curl
Lower reps with heavier weight builds raw strength. Your muscles and nervous system adapt to handle more load over time. This range is best for strength-focused goals.
This rep range keeps your muscles under tension long enough to trigger growth. Most people see the best muscle-building results in this zone. It balances strength and muscle size.
Higher reps with lighter weight builds muscular endurance and improves conditioning. This range is good for joint health and building work capacity.
General guideline: 2-3 sets of 8-10 reps. Rest 60 seconds.
What are good alternatives to the Jefferson Curl?
Seated Forward Fold
Stiff Leg Deadlift
Good Morning
Other Variations
- Bodyweight Jefferson Curl
- Barbell Jefferson Curl
This Exercise Is in Your Plan
MySetPlan picks the right exercises for your goals — like the Jefferson Curl — and builds them into a monthly program. Every set, every rep, planned out.
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Safety Notes
- Use very light weight.
- Move slowly.
- Not for those with back issues.