Jefferson Curl
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The Jefferson Curl is a bodyweight strength exercise where you stand on an elevated surface, hold a light weight or use bodyweight, and slowly flex the spine forward vertebra by vertebra into a deep forward bend before curling back up. Its primary purpose is to enhance spinal flexibility, strengthen the posterior chain, and improve control of the hamstrings, erector spinae, and calves. It's ideal for advanced lifters, gymnasts, or athletes seeking better back resilience and mobility without equipment.
How to Perform Jefferson Curl
- 1Stand on a stable surface like a box or step (6-12 inches high) with feet hip-width apart, holding a light weight (dumbbell or kettlebell) with both hands in front of your thighs—use bodyweight if beginner.
- 2Engage your core, keep knees slightly bent but locked, and shoulders back with a neutral spine.
- 3Inhale deeply, then exhale as you slowly hinge forward at the hips, letting your head and hands lead toward the ground.
- 4Continue curling your spine vertebra by vertebra, rounding from the head down through the upper back, mid-back, and lower back until you feel a deep stretch in your hamstrings and calves.
- 5Pause briefly at the bottom (1-2 seconds) while maintaining tension—avoid forcing the stretch.
- 6Inhale at the bottom, then exhale as you slowly reverse the curl, unrounding from the lower back up through the mid-back, upper back, and head last to return to standing.
- 7Fully extend hips and knees at the top, squeezing your glutes without overarching the lower back.
- 8Key form tips: Move slowly (3-5 seconds per rep) to control the spinal flexion—never bounce or use momentum. Keep knees soft to protect joints. Common mistakes: Rounding too aggressively without control, locking knees, or hyperextending at the top. Stop if you feel pain beyond a stretch.
