How to Do It
- Kneel on a soft, padded mat with your knees hip-width apart and your ankles securely locked under a fixed barbell, Nordic bench, or held by a partner.
- Align your torso so that your knees, hips, and shoulders form a rigid straight line with glutes firmly contracted.
- Cross your arms over your chest or hold your hands in front of your chest ready to break your descent.
- Lower your torso toward the floor as slowly and under as much control as possible by resisting extension strictly at the knee joint.
- When hamstring tension can no longer support your bodyweight, catch yourself with your hands in a controlled push-up position.
- Give a light push off the floor with your hands while contracting your hamstrings to return smoothly to the upright starting posture.
Common Mistakes
- Hinging forward at the hips to reduce the lever arm and lessen hamstring load.
- Hyperextending the lumbar spine instead of maintaining abdominal bracing.
- Free-falling toward the floor without fighting the eccentric lowering phase.
- Placing knees directly on hard flooring without adequate padding.
- Attempting unassisted concentric reps before establishing eccentric competence.
The Nordic hamstring curl is widely regarded as the gold standard for eccentric knee flexion strength and hamstring strain prevention. By anchoring the feet and using the body as a long lever, it creates massive mechanical tension in the distal hamstrings without requiring external iron or spinal axial loading.
Progression & Regression Ladder
Due to the extreme leverage of the human torso, most lifters cannot perform a full unassisted concentric repetition on day one. Use this progression model:
| Level | Variation | Target Metric | Transition Criterion |
|---|---|---|---|
| Tier 1 (Beginner) | Band-Assisted Nordic Curl | 3 sets of 8 reps | Reduce band tension |
| Tier 2 (Intermediate) | Slow Eccentric Only + Push-Up Reset | 4 sets of 5 reps (4-sec descent) | Control descent to within 10 inches of floor |
| Tier 3 (Advanced) | Full Range Eccentric with Catch | 3 sets of 6 reps (5-sec descent) | Touch chest softly with minimal floor rebound |
| Tier 4 (Elite) | Full Concentric & Eccentric Nordic Curl | 3 sets of 5 strict reps | Unassisted ascent without hip break |
Execution Checkpoints
- The Anchor Point: Ensure the ankle strap or partner holds the calcaneus (heel) firmly downward against the mat. If the heels lift, knee stability is compromised.
- The Neutral Pelvis: Squeeze the glutes and pull the ribs down. Maintain a 180° straight line from the knees through the hips to the shoulders throughout the entire descent.
- The Slow Fall: Initiate movement by allowing the knees to open slowly. Resist gravity exclusively through the hamstrings.
- The Floor Transition: Keep hands poised in front of the chest. When eccentric failure is reached, absorb the remaining descent with a soft push-up deceleration.
- The Assisted Return: Push lightly off the ground and pull vigorously with the hamstrings to return to the tall kneeling position.
Programming Integration
Incorporate Nordic curls at the beginning of lower body sessions when the central nervous system is fresh, or immediately following heavy compound leg work:
- Weekly Volume: 2 sessions per week, 3–4 sets of 4–6 reps.[1][2]
- Safety Boundary: Never allow the lower back to arch excessively to compensate for hamstring fatigue.[1][2]
References
- Anaerobic and Muscle Endurance Development: Lifting Guidelines. National Strength and Conditioning Association (2017)Back to claim
- American College of Sports Medicine Position Stand. Resistance Training Prescription for Muscle Function, Hypertrophy, and Physical Performance in Healthy Adults: An Overview of Reviews. Medicine & Science in Sports & Exercise (2026)Back to claim
- Updating ACSM's Recommendations for Exercise Preparticipation Health Screening. Medicine & Science in Sports & Exercise (2015)Back to claim
See our exercise methodology for how this evidence is applied and its limits.
Frequently Asked Questions
- What is a Nordic hamstring curl?
- The Nordic hamstring curl is a bodyweight knee-flexion exercise where the ankles are anchored and the lifter resists falling forward, placing immense eccentric overload on the hamstring muscle group.
- Why are Nordic curls so effective for hamstring injury prevention?
- Nordic curls systematically increase hamstring fascicle length and eccentric peak torque, two key mechanical factors scientifically proven to reduce hamstring strain injuries in running and field sports.
- How can beginners regress the Nordic curl?
- Beginners can use a resistance band looped around the chest or under the armpits anchored behind them, or use a yoga block / decline ramp to limit the forward range of motion until eccentric strength develops.
- How do Nordic curls differ from Romanian deadlifts?
- Nordic curls train hamstrings purely through knee flexion with a fixed hip angle, whereas Romanian deadlifts train the hamstrings as hip extensors through a hip hinge with fixed knees.
- How often should you perform Nordic curls?
- Due to high muscle damage from eccentric loading, perform Nordic curls 1 to 2 times per week with 3 to 5 sets of low repetitions (4–6 reps) to allow adequate tendon and muscle recovery.