European Journal of Applied Physiology

, Volume 117, Issue 5, pp 943–953 | Cite as

The effect of Nordic hamstring strength training on muscle architecture, stiffness, and strength

  • Kayla D. SeymoreEmail author
  • Zachary J. Domire
  • Paul DeVita
  • Patrick M. Rider
  • Anthony S. Kulas
Original Article



Hamstring strain injury is a frequent and serious injury in competitive and recreational sports. While Nordic hamstring (NH) eccentric strength training is an effective hamstring injury-prevention method, the protective mechanism of this exercise is not understood. Strength training increases muscle strength, but also alters muscle architecture and stiffness; all three factors may be associated with reducing muscle injuries. The purpose of this study was to examine the effects of NH eccentric strength training on hamstring muscle architecture, stiffness, and strength.


Twenty healthy participants were randomly assigned to an eccentric training group or control group. Control participants performed static stretching, while experimental participants performed static stretching and NH training for 6 weeks. Pre- and post-intervention measurements included: hamstring muscle architecture and stiffness using ultrasound imaging and elastography, and maximal hamstring strength measured on a dynamometer.


The experimental group, but not the control group, increased volume (131.5 vs. 145.2 cm3, p < 0.001) and physiological cross-sectional area (16.1 vs. 18.1 cm2, p = 0.032). There were no significant changes to muscle fascicle length, stiffness, or eccentric hamstring strength.


The NH intervention was an effective training method for muscle hypertrophy, but, contrary to common literature findings for other modes of eccentric training, did not increase fascicle length. The data suggest that the mechanism behind NH eccentric strength training mitigating hamstring injury risk could be increasing volume rather than increasing muscle length. Future research is, therefore, warranted to determine if muscle hypertrophy induced by NH training lowers future hamstring strain injury risk.


Eccentric Intervention Injury prevention Biomechanics Ultrasound Dynamometry 



Analyses of variance


Biceps femoris long head


Intraclass correlation


Limits of agreement


Nordic hamstring


Physiological cross-sectional area


Region of interest


Standard error of the mean


  1. Akagi R, Takahashi H (2014) Effect of a 5-week static stretching program on hardness of the gastrocnemius muscle. Scand J Med Sci Sports 24:950–957CrossRefPubMedGoogle Scholar
  2. Alegre L, Jiménez F, Gonzalo-Orden J, Martin-Acero R, Aguado X (2006) Effects of dynamic resistance training on fascicle length and isometric strength. J Sports Sci 24:501–508CrossRefPubMedGoogle Scholar
  3. Alonso J, Edouard P, Fischetto G, Adams B, Depiesse F, Mountjoy M (2012) Determination of future prevention strategies in elite track and field: analysis of Daegu 2011 IAAF championships injuries and illnesses surveillance. Br J Sports Med 46:505–514CrossRefPubMedPubMedCentralGoogle Scholar
  4. Arnason A, Andersen TE, Holme I, Engebretsen L, Bahr R (2008) Prevention of hamstring strains in elite soccer: an intervention study. Scand J Med Sci Sports 18:40–48CrossRefPubMedGoogle Scholar
  5. Askling C, Karlsson J, Thorstensson A (2003) Hamstring injury occurrence in elite soccer players after preseason strength training with eccentric overload. Scand J Med Sci Sports 13:244–250CrossRefPubMedGoogle Scholar
  6. Baroni BM, Geremia JM, Rodrigues R, De Azevedo Franke R, Karamanidis K, Vaz MA (2013) Muscle architecture adaptations to knee extensor eccentric training: rectus femoris vs. vastus lateralis. Muscle Nerve 48:498–506CrossRefPubMedGoogle Scholar
  7. Blazevich AJ, Cannavan D, Coleman DR, Horne S (2007) Influence of concentric and eccentric resistance training on architectural adaptation in human quadriceps muscles. J Appl Physiol 103:1565–1575CrossRefPubMedGoogle Scholar
  8. Bourne MN, Williams MD, Opar DA et al (2016) Impact of the Nordic hamstring and hip extension exercises on hamstring architecture and morphology: implications for injury prevention. Br J Sports Med. doi: 10.1136/bjsports-2016-096130 Google Scholar
  9. Brockett CL, Morgan DL, Proske U (2001) Human hamstring muscles adapt to eccentric exercise by changing optimum length. Med Sci Sports Exerc 33:783–790CrossRefPubMedGoogle Scholar
  10. Brooks JH, Fuller CW, Kemp SP, Reddin DB (2005) Epidemiology of injuries in english professional rugby union: part 1 match injuries. Br J Sports Med 39:757–766CrossRefPubMedPubMedCentralGoogle Scholar
  11. Brooks JH, Fuller CW, Kemp SP, Reddin DB (2006) Incidence, risk, and prevention of hamstring muscle injuries in professional rugby union. Am J Sports Med 34:1297–1306CrossRefPubMedGoogle Scholar
  12. Brughelli M, Cronin J (2007) Altering the length–tension relationship with eccentric exercise—implications for performance and injury. Sports Med 37:807–826CrossRefPubMedGoogle Scholar
  13. Chumanov ES, Heiderscheit BC, Thelen DG (2007) The effect of speed and influence of individual muscles on hamstring mechanics during the swing phase of sprinting. J Biomech 40:3555–3562CrossRefPubMedGoogle Scholar
  14. Clark R, Bryant A, Culgan J, Hartley B (2005) The effects of eccentric hamstring strength training on dynamic jumping performance and isokinetic strength parameters: a pilot study on the implications for the prevention of hamstring injuries. Phys Ther Sport 6:67–73CrossRefGoogle Scholar
  15. Cohen J (1988) Statistical power analysis for the behavioral sciences, 2nd edn. Lawrence Earlbaum Associates, HillsdaleGoogle Scholar
  16. Curran-Everett D, Benos DJ (2004) Guidelines for reporting statistics in journals published by the American Physiological Society. Adv Physiol Educ 28:85–87CrossRefPubMedGoogle Scholar
  17. De Smet A, Best T (2000) MR imaging of the distribution and location of acute hamstring injuries in athletes. Am J Roentgenol 174:393–399CrossRefGoogle Scholar
  18. Delahunt E, McGroarty M, De Vito G, Ditroilo M (2016) Nordic hamstring exercise training alters knee joint kinematics and hamstring activation patterns in young men. Eur J Appl Physiol 116:663–672CrossRefPubMedGoogle Scholar
  19. Dempster WT (1955) Space requirements of the sealed operator. In: WADC technical report, Wright Patterson Air Force Base, Ohio, pp 55–159Google Scholar
  20. Duclay J, Martin A, Duclay A, Cometti G, Pousson M (2009) Behavior of fascicles and the myotendinous junction of human medial gastrocnemius following eccentric strength training. Muscle Nerve 39:819–827CrossRefPubMedGoogle Scholar
  21. Eby SF, Song P, Chen S, Chen Q, Greenleaf JF, An K (2013) Validation of shear wave elastography in skeletal muscle. J Biomech 46:2381–2387CrossRefPubMedGoogle Scholar
  22. Ekstrand J, Hagglund M, Walden M (2011a) Epidemiology of muscle injuries in professional football (soccer). Am J Sports Med 39:1226–1232CrossRefPubMedGoogle Scholar
  23. Ekstrand J, Hagglund M, Walden M (2011b) Injury incidence and injury patterns in professional football: The UEFA injury study. Br J Sports Med 45:553–558CrossRefPubMedGoogle Scholar
  24. Ekstrand J, Healy JC, Walden M, Lee JC, English B, Hagglund M (2012) Hamstring muscle injuries in professional football: the correlation of MRI findings with return to play. Br J Sports Med 46:112–117CrossRefPubMedGoogle Scholar
  25. Ekstrand J, Hagglund M, Kristenson K, Magnusson H, Walden M (2013) Fewer ligament injuries but no preventive effect on muscle injuries and severe injuries: an 11-year follow-up of the UEFA champions league injury study. Br J Sports Med 47:732–737CrossRefPubMedGoogle Scholar
  26. Erskine RM, Jones DA, Williams AG, Stewart CE, Degens H (2010) Inter-individual variability in the adaptation of human muscle specific tension to progressive resistance training. Eur J Appl Physiol 110:1117–1125CrossRefPubMedGoogle Scholar
  27. Faul F, Erdfelder E, Lang AG, Buchner A (2007) G*Power 3: a flexible statistical power analysis program for the social, behavioral, and biomedical sciences. Behav Res Methods 39:175–191CrossRefPubMedGoogle Scholar
  28. Feeley BT, Kennelly S, Barnes RP et al (2008) Epidemiology of national football league training camp injuries from 1998 to 2007. Am J Sports Med 36:1597–1160CrossRefPubMedGoogle Scholar
  29. Franchi MV, Atherton PJ, Reeves ND et al (2014) Architectural, functional and molecular responses to concentric and eccentric loading in human skeletal muscle. Acta Physiol (Oxf) 210:642–654CrossRefGoogle Scholar
  30. Fukunaga T, Roy RR, Shellock FG et al (1992) Physiological cross-sectional area of human leg muscles based on magnetic resonance imaging. J Orthop Res 10:926–934CrossRefGoogle Scholar
  31. Guex K, Degache F, Morisod C, Sailly M, Millet GP (2016) Hamstring architectural and functional adaptations following long vs. short muscle length eccentric training. Front Physiol 7:340CrossRefPubMedPubMedCentralGoogle Scholar
  32. Hawkins D, Hull ML (1990) A method for determining lower extremity muscle-tendon lengths during flexion/extension movements. J Biomech 23:487–494CrossRefPubMedGoogle Scholar
  33. Hubal MJ, Gordish-Dressman H, Thompson PD et al (2005) Variability in muscle size and strength gain after unilateral resistance training. Med Sci Sports Exerc 37:964–972CrossRefPubMedGoogle Scholar
  34. Iga J, Fruer CS, Deighan M, Croix MD, James DV (2012) ‘Nordic’ hamstrings exercise–engagement characteristics and training responses. Int J Sports Med 33:1000–1004CrossRefPubMedGoogle Scholar
  35. Kellis E, Baltzopoulos V (1996) Gravitational moment correction in isokinetic dynamometry using anthropometric data. Med Sci Sports Exerc 28:900–907CrossRefPubMedGoogle Scholar
  36. Kovanen V, Suominen H, Heikkinen E (1984) Mechanical properties of fast and slow skeletal muscle with special reference to collagen and endurance training. J Biomech 17:725–735CrossRefPubMedGoogle Scholar
  37. Lakens D (2013) Calculating and reporting effect sizes to facilitate cumulative science: a practical primer for t-tests and ANOVAs. Front Psychol 4:863CrossRefPubMedPubMedCentralGoogle Scholar
  38. Lieber RL, Bodine-Fowler SC (1993) Skeletal muscle mechanics: implications for rehabilitation. Phys Ther 73:844–856CrossRefPubMedGoogle Scholar
  39. Lieber RL, Fridén J (1993) Muscle damage is not a function of muscle force but active muscle strain. J Appl Physiol 74:520–526PubMedGoogle Scholar
  40. Mjølsnes R, Arnason A, Østhagen T, Raastad T, Bahr R (2004) A 10-week randomized trial comparing eccentric vs. concentric hamstring strength training in well-trained soccer players. Scand J Med Sci Sports 14:311–317CrossRefPubMedGoogle Scholar
  41. Orchard JW, Seward H, Orchard JJ (2013) Results of 2 decades of injury surveillance and public release of data in the australian football league. Am J Sports Med 41:734–741CrossRefPubMedGoogle Scholar
  42. Petersen J, Thorborg K, Nielsen MB, Budtz-Jørgensen E, Hölmich P (2011) Preventive effect of eccentric training on acute hamstring injuries in men’s soccer: a cluster-randomized controlled trial. Am J Sports Med 39:2296–2303CrossRefPubMedGoogle Scholar
  43. Potier TG, Alexander CM, Seynnes OR (2009) Effects of eccentric strength training on biceps femoris muscle architecture and knee joint range of movement. Eur J Appl Physiol 105:939–944CrossRefPubMedGoogle Scholar
  44. Rosenthal JA (1996) Qualitative descriptors of strength of association and effect size. J Soc Serv Res 21:37–59CrossRefGoogle Scholar
  45. Sharifnezhad A, Marzilger R, Arampatzis A (2014) Effects of load magnitude, muscle length and velocity during eccentric chronic loading on the longitudinal growth of the vastus lateralis muscle. J Exp Biol 217:2726–2733CrossRefPubMedGoogle Scholar
  46. Tansel RB, Salci Y, Yildirim A, Kocak S, Korkusuz F (2008) Effects of eccentric hamstring strength training on lower extremity strength of 10–12 year old male basketball players. Isokinet Exerc Sci 16:81–85Google Scholar
  47. van der Horst N, Smits DW, Petersen J, Goedhart EA, Backx FJ (2015) The preventive effect of the Nordic hamstring exercise on hamstring injuries in amateur soccer players: a randomized controlled trial. Am J Sports Med 43:1316–1323CrossRefPubMedGoogle Scholar
  48. Visser JJ, Hoogkamer JE, Bobbert MF, Huijing PA (1990) Length and moment arm of human leg muscles as a function of knee and hip-joint angles. Eur J Appl Physiol Occup Physiol 61:453–460CrossRefPubMedGoogle Scholar
  49. Ward SR, Eng CM, Smallwood LH, Lieber RL (2009) Are current measurements of lower extremity muscle architecture accurate? Clin Orthop Relat Res 467:1074–1082CrossRefPubMedGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2017

Authors and Affiliations

  • Kayla D. Seymore
    • 1
    • 3
    Email author
  • Zachary J. Domire
    • 1
  • Paul DeVita
    • 1
  • Patrick M. Rider
    • 1
  • Anthony S. Kulas
    • 2
  1. 1.Kinesiology DepartmentEast Carolina UniversityGreenvilleUSA
  2. 2.Department of Health Education and PromotionEast Carolina UniversityGreenvilleUSA
  3. 3.Center for Orthopaedic and Biomechanics ResearchBoise State UniversityBoiseUSA

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