Isokinetic Strength Responses to Season-long Training and Competition in Turkish Elite Soccer Players

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Isokinetic Strength Responses to Season-long Training and Competition in Turkish Elite Soccer Players

There are not enough studies that describe the isokinetic strength of professional soccer players at high angular velocities. The purpose of this study was to evaluate the seasonal changes in isokinetic strength of Turkish professional soccer players (n=14) over the course of a 24-week soccer season. The isokinetic strength of players who underwent usual soccer training and weekly competition throughout the soccer season was assessed by means of the Biodex System 3 dynamometer with the knee attachment. The peak torque of knee extensor and flexor muscles were measured at angular velocities of 60°/s, 300°/s and 500°/s. Players were tested at the beginning and end of the competitive season. While the first- and second-test measurements did not show significant changes at 60°/s and 300°/s angular velocities, at the end of the training period, players' knee strength changed significantly at 500°/s angular velocities. In addition, the H/Q ratio improved significantly for the dominant as well as non-dominant leg at 500°/s. Significant bilateral strength improvements for knee flexors were also observed at 500°/s. The findings of this study suggest that usual daily soccer training (technical, tactical, power, strength, endurance, flexibility, etc.) and weekly competition might produce changes in knee strength at high angular velocities.

Aagaard P, Simonsen EB, Trolle M, Bangsbo J, Klausen K. Isokinetic hamstring/quadriceps strength ratio: Influence from joint angular velocity, gravity correction and contraction mode. Acta Physiol Scand, 1995; 154: 421-427

Bangsbo J. The physiology of soccer-: with special reference to intense intermittent exercise. Acta Physiol Scand, 1994; 151 (suppl 619): 1-156

Behm DG, Sale DG. Velocity specificity of resistance training. Sports Med, 1993; 15: 374-388

Brady K, Maile A, Ewing B. An investigation into the fitness of professional soccer players over two seasons. In: Reilly T, Bangsbo J, Clarys J, Franks I, Hughes M, eds. Science and football III. London: E & FN Spon, 1997: 118-122

Brewer J. Changes in selected physiological characteristics of an English first division soccer squad during a league season. J Sport Sci, 1990; 8: 76-77

Casajũs JA. Seasonal variation in fitness variables in professional soccer players. J Sport Med Phys Fit, 2001; 41: 463-467

Cometti G, Maffiuletti NA, Pousson M, Chatard JC, Maffulli N. Isokinetic strength and anaerobic power of elite, subelite and amateur French soccer players. Int J Sports Med, 2001; 22(1): 45-51

De Proft E, Cabri J, Dufour W, Clarys JP. Strength training and kick performance in soccer players. In: Reilly T, Lees A, Davids K, Murphy WJ, eds. Science and football II. London: E & FN Spon, 1988: 108-113

Dintiman GB, Ward RD. Sport speed. Champaign, IL: Human Kinetics, 1988

Dudley GA, Djamil R. Incompatibility of endurance and strength-training modes of exercise. J Appl Physiol, 1985; 59(5): 1446-1451

Häkkinen K, Komi PV, Alen M. Effect of explosive type strength training on isometric force- and relaxation time, electromyographic and muscle fibre characteristics of leg extensor muscles. Acta Physiol Scand, 1985; 125 (4): 587-600

Hamzeh M, Head A. Isokinetic hamstrings and quadriceps evaluation of professional soccer players. J Sports Sci, 2004; 22(3): 265-266

Hoff J, Berdahl GO, Bråten S. Jumping height development and body mass considerations in ski jumping. In: Müller E, Schwameder H, Raschner C, Lidinger S, Kornexl E, eds. Science and skiing II. Hamburg: Verlag Dr. Kovac, 2001; 403-412

Hoff J, Helgerud J. Endurance and strength training for soccer players. Sports Med, 2004; 34(3): 165-180

İşleğen C, Akgün N. Effects of 6 weeks pre-seasonal training on physical fitness among soccer players. In: Reilly T, Lees A, Davids K, Murphy WJ, eds. Science and football II. London: E & FN Spon, 1988; 125-128

Jönhagen S, Németh G, Eriksson E. Hamstring injuries in sprinters. Am J Sports Med, 1994; 22(2): 262-266

Kanehisa H, Miyashita M. Specificity of velocity in strength training. Eur J Appl Physiol Occup Physiol, 1983; 52: 104-108

Kannus P. Isokinetic evaluation of muscular performance: Implications for muscle testing and rehabilitation. Int J Sports Med, 1994; 15: 11-18

Kawamori N and Newton RU. Velocity specificity of resistance training: Actual movement velocity versus intention to move explosively. Strength Cond J, 2006, 28(2): 86-91

Kramer JF, Balsor BE. Lower extremity preference and knee extensor torques in intercollegiate soccer players. Can J Sport Sci, 1990; 15(3): 180-184

Leatt P, Shephard R, Plyley M. Specific muscular development in under-18 soccer players, J Sports Sci, 1987; 5: 165-175

Mark AN, Kyle MT, Frank EM. Relationships between isokinetic knee strength, single-sprint performance, and repeated-sprint ability in football players. J Strength Cond Res, 2004; 18: 867-872

Metaxas TI, Koutlianos N, Sendelides T, Mandroukas A. Preseason physiological profile of soccer and basketball players in different divisions. J Strength Cond Res, 2009; 23(6): 1704-1713

Murray DP, Brown LE. Variable velocity training in the periodized model. Strength Cond J, 2006; 28(1): 88-92

Narici MV, Roi GS, Landoni L, Minetti AE, Cerretelli P. Change in force, cross-sectional area and neural activation during strength training and detraining of the human quadriceps. Eur J Appl Physiol, 1989; 59: 310-319

O'Donoghue P. Time-motion analysis of work rate in elite soccer. In: Tavares MF, ed. Notational analysis of sport IV: Centre for Team Sports Studies. Porto: Faculty of Sport Sciences and Physical Education, University of Porto, 2001; 65-70

Öberg B, Möller M, Ekstrand J, Gillquist J. Exercises for knee flexors and extensors in uninjured soccer players: Effects of two different programs. Int J Sports Med, 1985; 6(3): 151-154

Poulson M, Amiridis IG, Cometti G, Van Hoecke J. Velocity-specific training in elbow flexors. Eur J Appl Physiol Occup Physiol, 1999; 80(4): 367-372

Prevost MC, Nelson AG, Maraj BKV. The effect of two days of velocity-specific isokinetic training on torque production. J Strength Cond Res, 1999;13(1): 35-39

Reilly T, Thomas V. Effects of a programme of pre-season training on the fitness of soccer players. J Sport Med Phys Fit, 1977; 17(4): 401-412

Reilly T, Drust B. The isokinetic muscle strength of women soccer players. Coach Sport Sci J, 1997; 2(2): 12-17

Reilly T, Thomas V. A motion analysis of work-rate in different positional roles in professional football match-play. J Hum Mov Stud, 1976; 2: 87-97

Rutherford OM, Jones DA. The role of learning and coordination in strength training. Eur J Appl Physiol Occup Physiol 1986; 55: 100-105

Sale DG. Neural adaptation to strength training. In: Komi PV, ed. Strength and power in sports. Oxford: IOC Medical Commission, Blackwell Scientific Publications, 1992; 249-265

Sale DG. Testing strength and power. In: MacDougall JD, Wenger HA, Green HJ, eds. Physiological testing of the high-performance athlete, 2nd ed. Champaign, IL: Human Kinetics, 1991; 21-106

Taskin H. Evaluating sprinting ability, density of acceleration, and speed dribbling ability of professional soccer players with respect to their positions. J Strength Cond Res, 2008; 22(5): 1481-1486

Wisloff U, Helgerud J, Hoff J. Strength and endurance of elite soccer players. Med Sci Sports Exerc, 1998; 30(3): 462-467

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