[en] Muscle strength and anaerobic power of the lower extremities are neuromuscular variables that influence performance in many sports activities, including soccer. Despite frequent contradictions in the literature, it may be assumed that muscle strength and balance play a key role in targeted acute muscle injuries. The purpose of the present study was to provide and compare pre-season muscular strength and power profiles in professional and junior elite soccer players throughout the developmental years of 15-21. One original aspect of our study was that isokinetic data were considered alongside the past history of injury in these players. Fifty-seven elite and junior elite male soccer players were assigned to three groups: PRO, n=19; U-21, n=20 and U-17, n=18. Players benefited from knee flexor and extensor isokinetic testing consisting of concentric and eccentric exercises. A context of lingering muscle disorder was defined using statistically selected cut-offs. Functional performance was evaluated throughout a squat jump and 10 m sprint. The PRO group ran faster and jumped higher than the U-17 group (P<0.05). No significant difference in isokinetic muscle strength performance was observed between the three groups when considering normalized body mass parameters. Individual isokinetic profiles enabled the identification of 32/57 (56%) subjects presenting lower limb muscular imbalance. Thirty-six out of 57 players were identified as having sustained a previous major lower limb injury. Of these 36 players, 23 still showed significant muscular imbalance (64%). New trends in rational training could focus more on the risk of imbalance and implement antagonist strengthening aimed at injury prevention. Such an intervention would benefit not only athletes recovering from injury, but also uninjured players. An interdisciplinary approach involving trainers, a physical coach, and medical staff would be of interest to consider in implementing a prevention programme.
Disciplines :
Orthopedics, rehabilitation & sports medicine
Author, co-author :
Lehance, Cédric ; Université de Liège - ULiège > Département des sciences de la motricité > Département des sciences de la motricité
Binet, J.
Bury, Thierry ; Centre Hospitalier Universitaire de Liège - CHU > Pneumologie-Allergologie
Croisier, Jean-Louis ; Université de Liège - ULiège > Département des sciences de la motricité > Kinésithérapie générale et réadaptation
Language :
English
Title :
Muscular strength, functional performances and injury risk in professional and junior elite soccer players.
Publication date :
2009
Journal title :
Scandinavian Journal of Medicine and Science in Sports
ISSN :
0905-7188
eISSN :
1600-0838
Publisher :
Munksgaard International Publishers, Copenhagen, Denmark
Askling C, Karlsson J, Thorstensson A. Hamstring injury occurence in elite soccer players after preseason strength training with eccentric overload. Scand J Med Sci Sports 2003 : 13 : 244 250.
Baker JS, Bell W. Anaerobic performance and sprinting ability in elite male and female sprinters. J Hum Mov Stud 1994 : 27 : 235 242.
Bangsbo J, Nooregard L, Thorsoe F. Activity profile of competition soccer. Can J Sport Sci 1991 : 16 : 110 116.
Bennell K, Wajswelner H, Lew P, Schall-Riaucour A, Leslie S, Plant D, Cirone J. Isokinetic strength testing does not predict hamstring muscle injury in Australian Rules footballers. Br J Sports Med 1998 : 32 : 309 314.
Bosco C, Belli A, Astrua M, Tihanyi J, Pozzo R, Kellis S, Tsarpela O, Foti C, Manno R, Tranquilli C. A dynamometer for evaluation of dynamic muscle work. Eur J Appl Physiol 1995 : 70 : 379 386.
Bosco C, Ito A, Komi PV, Luthanen P, Rahkila P, Rusko H, Viitasalo JT. Neuromuscular function and mechanical efficiency of human leg extensor muscles during jumping exercises. Acta Physiol Scand 1982 : 114 : 543 550.
Bosco C, Mognoni P, Luthanen P. Relationship between isokinetic performance and ballistic movement. Eur J Appl Physiol Occup Physiol 1983 : 51 (3) : 357 364.
Chamari K, Moussa-Chamari I, Boussaïdi L, Hachana Y, Kaouech F, Wisloff U. Appropriate interpretation of aerobic capacity: allometric scaling in adult and young soccer players. Br J Sports Med 2005 : 39 (2) : 97 101.
Cometti G, Maffiuletti NA, Pousson M, Chatard JC, Maffiuli N. Isokinetic strength and anaerobic power of elite, subelite and amateur French soccer players. Int J Sports Med 2001 : 22 : 45 51.
Croisier JL. Muscular imbalance and acute lower extremity muscle injuries in sport. Int Sport Med J 2004a : 5 (3) : 169 176.
Croisier J-L. Factors associated with recurrent hamstring injuries. Sports Med 2004b : 34 (10) : 681 695.
Croisier JL, Crielaard JM. Hamstring muscle tear with recurrent complaints: an isokinetic profile. Isokinetics Exerc Sci 2000 : 8 : 175 180.
Croisier J-L, Forthomme B, Namurois MH, Vanderthommen M, Crielaard JM. Hamstring muscle strain recurrence and strength performance disorders. Am J Sports Med 2002 : 30 (2) : 199 203.
Croisier JL, Ganteaume S, Ferret JM. Pre-season isokinetic intervention as a preventive strategy for hamstring injury in professional soccer players [abstract]. Br J Sports Med 2005 : 39 (6) : 379.
Croisier J-L, Ganteaume S, Genty M, et al. Incomplete muscle strength recovery in injured professional football players. Abstract book of the 11 th annual Congress of the European College of Sports Science. 2006 : p. 361.
Croisier JL, Reveillon V, Ferret JM. Isokinetic assessment of knee flexors and extensors in professional soccer players. Isokinetics Exerc Sci 2003 : 11 : 61 62.
Dauty M, Bryand F, Potiron-Josse M. Relation between isokinetic torque, jump and sprint in high-level soccer player. Sci Sports 2002 : 17 : 122 127.
Dowson MN, Nevill ME, Lakomy HKA, et al. Modelling the relationship between isokinetic muscle strength and sprint running performance. J Sports Sci 1998 : 16 : 257 265.
Dvir Z, Eger G, Halperin N, Shklar A. Thigh muscles activity and ACL insufficiency. Clin Biomech 1989 : 87 91.
Farrar M, Thorland W. Relationship between isokinetic strength and sprint times in college-age men. J Sports Med 1987 : 27 : 368 372.
Jameson TD, Knight KL, Ingesoll CD, Edwards JE. Correlation of isokinetic isometric, isokinetic strength measurements with a one-leg vertical jump. Isokinetics Exerc Sci 1997 : 6 : 203 208.
Jönhagen S, Nemeth G, Eriksson E. Hamstring injuries in sprinters: the role of concentric and eccentric hamstring muscle strength and flexibility. Am J Sports Med 1994 : 22 : 262 266.
Le Gall F, Beillot J, Rochcongar P. The improvement in maximal anaerobic power from soccer players during growth. Sci Sports 2002 : 17 (4) : 177 188.
Le Gall F, Laurent T, Rochcongar P. Improvement in hamstring and quadriceps strength in high level soccer players. Sci Sports 1999 : 14 : 167 172.
Mero A. Relationships between the muscle fibre characteristics, sprinting and jumping of sprinters. Biol Sport 1985 : 2 (3) : 155 161.
Mero A, Luhtanen P, Viitasalo JP, Komi PV. Relationships between the maximal running velocity, muscle fibre characteristics, force production and force relaxation of sprinters. Scand J Sports Sci 1981 : 3 (1) : 16 22.
Mohr M, Krustrup P, Bangsbo J. Match performance of high-standard soccer players with special reference to development of fatigue. J Sports Sci 2003 : 21 : 519 528.
Murphy AJ, Wilson GJ. The assessment of human dynamic muscular function: a comparison of isoinertial and isokinetic tests. J. Sports Med Phys Fitness 1996 : 36 : 169 177.
Öberg B, Möller M, Gillquist J, Ekstrand J. Isokinetic torque levels for knee extensors and knee flexors in soccer players. Int J Sports Med 1986 : 17 : 50 53.
Orchard J, Marsden J, Lord S, Garlick D. Preseason hamstring muscle weakness associated with hamstring muscle injury in Australian footballers. Am J Sports Med 1997 : 25 : 81 85.
Orchard JW. Intrinsic and extrinsic risk factors for muscle strains in Australian football. Am J Sports Med 2001 : 29 : 300 303.
Östenberg A, Roos E, Ekdahl C, Roos H. Isokinetic extensor strength and functional performance in healthy female soccer players. Scand Med Sci Sports 1998 : 8 : 257 264.
Pääsuke M, Ereline J, Gapayeva H. Knee extension strength and vertical jumping performance in nordic combined athletes. J. Sports Med Phys Fitness 2001 : 41 : 354 361.
Parkkari J, Kujala UM, Kannus P. Is it possible to prevent sports injuries? Review of controlled clinical trials and recommendations for future work. Sports Med 2001 : 31 : 985 995.
Petschnig R, Baron R, Albrecht M. The relationship between isolinetic quadriceps strength test and hop tests for distance and one-legged vertical jump test following anterior cruciate ligament reconstruction. J Orthop Sports Phys Ther 1998 : 28 (1) : 23 31.
Reilly T, Doran D. Fitness assessment. In : Reilly T, Williams M, eds. Science and soccer. London : Routledge, 2003 : 21 46.
Schmidtbleicher D. Training for power event. In : Komi PV, ed. Strength and power in sport. London : Blackwell Scientific Publications, 1992 : 381 395.
Stolen T, Chamari K, Castagna C, Wisloff U. Physiology of soccer. An update. Sports Med 2005 : 35 (6) : 501 506.
Wiklander J, Lysholm J. Simple test for surveying muscle strength and muscle stiffness in sportsmen. Int J Sports Med 1987 : 8 : 50 54.
Wilson G, Murphy A. The efficacy of isometric and vertical jump tests in exercise science. Aust J Sci Med Sport 1995 : 27 : 20 24.
Wisloff U, Castagna C, Helgerud J, Jones R, Hoff J. Strong correlation of maximal squat strength with sprint performance and vertical jump height in elite soccer players. Br J Sports Med 2004 : 38 : 285 288.
Wisloff U, Helgerud J, Hoff J. Strength and endurance of elite soccer players. Med Sci Sports Exerc 1998 : 30 (3) : 462 467.
Young W, Mc Lean B, Ardagna J. Relationship between strength qualities and sprinting performance. J Sports Med Phys Fitness 1995 : 3 : 13 19.
Zakas A, Mandroukas K, Vamvakoudis E, Christoulas K, Aggelopoulou N. Peak torque of quadriceps and hamstring muscles in basketball and soccer players of different divisions. J Sports Med Phys Fitness 1995 : 35 : 199 205.
