Jefferson Curl
- Primary muscles
- Lower back
- Secondary muscles
- Hamstrings
- Equipment
- Barbell
- Movement pattern
- None
Steps
- 1 Stand on a box with your feet hip-width apart, holding a barbell with an overhand, shoulder-width grip.
- 2 Slowly tuck your chin to your chest and begin to round your upper back, allowing the barbell to descend towards the floor.
- 3 Continue to flex your spine segment by segment, keeping your legs relatively straight, and lower the barbell as far as comfortable, allowing it to go below the level of your feet.
- 4 Reverse the motion by extending your spine segment by segment, returning to the upright standing position.