Weekly Training Signal: Eccentric Training Cuts Hamstring Injuries by 46%
Hamstring injuries are among the most common in sports involving sprinting, direction changes, and jumping. In soccer, they're the leading cause of extended absence. In gym training and track athletics, they're chronic and recurring. And yet their prevention comes down to a relatively simple intervention backed by years of solid research data.
Eccentric training reduces hamstring injury rates by 46% according to a meta-analysis covering dozens of randomized studies. Combined with sprint exposure, that number can reach 56-94%.
Key Takeaways
- Eccentric training reduces hamstring injuries by 46% and knee injuries by 34% (MDPI meta-analysis).
- Sprint exposure combined with eccentric training reduces injuries by 56-94% in athletic populations.
- A 2026 RCT shows Romanian deadlifts and eccentric leg curls are as effective as Nordic curls for prevention.
- Compliance is the critical variable: programs with low adherence show no meaningful benefit.
What the Meta-Analysis Shows
A meta-analysis published in MDPI examining the effects of eccentric hamstring exercise programs on lower extremity injury prevention found a 28% reduction in total lower extremity injuries, a 46% reduction in hamstring-specific injuries, and a 34% reduction in knee injuries. These results are consistent across multiple sports and skill levels.
The mechanism is well understood: eccentric work lengthens the muscle under load, which increases optimal muscle fascicle length and improves resistance to rapid stretch forces. Those are exactly the forces that cause tears during sprinting.
Nordic Curls vs Romanian Deadlifts: What the 2026 Comparison Shows
Nordic curls have long been considered the gold-standard eccentric exercise for hamstrings. A 2026 randomized trial on elite youth soccer players adds nuance to that picture.
The study compared two groups over a 9-week in-season program: one using Nordic curls, the other combining deadlifts and leg curl slides. Both groups showed comparable improvements in eccentric strength and injury prevention markers. No clear superiority was found for either approach.
What this means in practice: Nordic curls aren't the only option. If equipment access or exercise tolerance limits Nordic curl integration, Romanian deadlifts and eccentric leg curl slides are valid alternatives with similar data.
The Compliance Factor: Why Programs Fail
The 2025 Sports Medicine narrative review on hamstring injury mechanisms and eccentric training adaptations raises a critical point: most studies that show no benefit are the ones with low program compliance.
Eccentric training works when it's actually done. The main problem isn't the effectiveness of the intervention. It's consistency. A Nordic curl program done once every 3 weeks doesn't produce the same results as twice-weekly sessions over 10-12 weeks.
How to Program Eccentric Training
For athletes who want to apply this data:
Recommended frequency: 2 sessions per week for at least 8-12 weeks for meaningful structural adaptations.
Starting volume: 3 sets of 6-8 reps for Nordic curls or 4 sets of 8-10 for Romanian deadlifts.
Progressive loading: increase volume gradually. Early sessions can cause significant DOMS if you're not used to this stimulus.
Timing: eccentric training is best tolerated early or mid-training week, not the day before a sprint session or match.
The research on this topic is among the most solid in sports injury prevention. If you're managing a training program for yourself or for athletes, 2 eccentric sessions per week is probably the best time investment for reducing downtime.
Also read: 3 Fitness Tests That Predict How Long You'll Live