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Int J Sports Med 2019; 40(12): 796-802
DOI: 10.1055/a-0977-5478
Training & Testing
© Georg Thieme Verlag KG Stuttgart · New York

Eccentric-concentric Ratio: A Key Factor for Defining Strength Training in Soccer

F. Javier Nuñez
1   Physical Performance & Sports Research, University of Pablo de Olavide, Seville, Spain
,
Moisés de Hoyo
2   Physical Education and Sport, University of Seville, Seville, Spain
,
Alejandro Muñoz López
3   Sports and Computing, University Pablo de Olavide, Seville, Spain
,
Borja Sañudo
2   Physical Education and Sport, University of Seville, Seville, Spain
,
Carlos Otero-Esquina
4   Fitness Section, Sevilla Football Club, Seville, Spain
,
Hugo Sanchez
4   Fitness Section, Sevilla Football Club, Seville, Spain
,
Oliver Gonzalo-Skok
5   Faculty of Health Sciences, University of San Jorge, Zaragoza, Spain
› Author Affiliations
Further Information

Publication History



accepted 15 July 2019

Publication Date:
21 August 2019 (online)

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Abstract

The aims of this study were to analyse the effect of chronic strength training over concentric power (CON), eccentric power (ECC), ECC/CON ratio, and 20 m linear sprint performance in elite young soccer players. Twenty young elite Spanish soccer players were assigned to an experimental group (CPG) which performed a front-step exercise using a conical pulley, 2–3 sets of 6 repetitions each leg, during 9 weeks (CPG, n=10) in addition to its usual strength training, or to a control group (CG, n=10). The improvements in the ECC mean power (36%, ES=1.61), and ECC / CON ratio (17%, ES=1.77) were substantially greater in the CPG than in the CG while the CON mean power (16%, ES=0.83) was substantially greater in the CG than in the CPG. The sprinting time for 10 m (2.8%, ES=0.78) and the 10 m flying time between 10–20 m (1.72%, ES=0.41) were substantially enhanced in CPG and CG respectively. To be efficient when defining a functional strength training and performance increments using an inertial device, the mean power output need to be measured during the CON and ECC phases and an analysis of the ECC / CON ratio should be included.

Key words

rotatory inertial device - mean power - sprint performance - force-vector training - resistance training - young soccer players
 

  • References

  • 1 Morin JB, Petrakos G, Jimenez-Reyes P, Brown SR, Samozino P, Cross MR. Very-heavy sled training for improving horizontal-force output in soccer players. Int J Sports Physiol Perform 2017; 12: 840-844
    CrossrefPubMedGoogle Scholar
  • 2 Morin JB, Samozino P. Interpreting power-force-velocity profiles for individualized and specific training. Int J Sports Physiol Perform 2016; 11: 267-272
    CrossrefPubMedGoogle Scholar
  • 3 Norrbrand L, Fluckey JD, Pozzo M, Tesch PA. Resistance training using eccentric overload induces early adaptations in skeletal muscle size. Eur J Appl Physiol 2008; 102: 271-281
    PubMedGoogle Scholar
  • 4 Norrbrand L, Pozzo M, Tesch PA. Flywheel resistance training calls for greater eccentric muscle activation than weight training. Eur J Appl Physiol 2010; 110: 997-1005
    CrossrefPubMedGoogle Scholar
  • 5 Javier Nunez F, Suarez-Arrones LJ, Cater P, Mendez-Villanueva A. The High-Pull Exercise: A comparison between a versapulley flywheel device and the free weight. Int J Sports Physiol and Perform 2017; 12: 527-532
    PubMedGoogle Scholar
  • 6 Maroto-Izquierdo S, Garcia-Lopez D, Fernandez-Gonzalo R, Moreira OC, Gonzalez-Gallego J, de Paz JA. Skeletal muscle functional and structural adaptations after eccentric overload flywheel resistance training: a systematic review and meta-analysis. J Sci Med Sport 2017; 20: 943-951
    CrossrefPubMedGoogle Scholar
  • 7 de Hoyo M, Gonzalo-Skok O, Sanudo B, Carrascal C, Plaza-Armas JR, Camacho-Candil F. et al. Comparative effects of in-season full-back squat, resisted sprint training, and plyometric training on explosive performance in U-19 elite soccer players. J Strength Cond Res 2016; 30: 368-377
    CrossrefPubMedGoogle Scholar
  • 8 Otero-Esquina C, de Hoyo Lora M, Gonzalo-Skok O, Dominguez-Cobo S, Sanchez H. Is strength-training frequency a key factor to develop performance adaptations in young elite soccer players?. Eur J Sport Sci 2017; 17: 1241-1251
    CrossrefPubMedGoogle Scholar
  • 9 Askling C, Karlsson J, Thorstensson A. Hamstring injury occurrence in elite soccer players after preseason strength training with eccentric overload. Scand J Med Sci Sports 2003; 13: 244-250
    CrossrefPubMedGoogle Scholar
  • 10 Gonzalo-Skok O, Tous-Fajardo J, Valero-Campo C, Berzosa C, Bataller AV, Arjol-Serrano JL. et al. Eccentric-overload training in team-sport functional performance: constant bilateral vertical versus variable unilateral multidirectional movements. Int J Sports Physiol Perform 2017; 12: 951-958
    CrossrefPubMedGoogle Scholar
  • 11 Tous-Fajardo J, Gonzalo-Skok O, Arjol-Serrano JL, Tesch P. Enhancing change-of-direction speed in soccer players by functional inertial eccentric overload and vibration training. Int J Sports Physiol Perform 2016; 11: 66-73
    CrossrefPubMedGoogle Scholar
  • 12 Carmona G, Guerrero M, Cusso R, Padulles JM, Moras G, Lloret M. et al. Muscle enzyme and fiber type-specific sarcomere protein increases in serum after inertial concentric-eccentric exercise. Scand J Med Sci Sports 2015; 25: e547-e557
    CrossrefPubMedGoogle Scholar
  • 13 de Hoyo M, Sanudo B, Carrasco L, Dominguez-Cobo S, Mateo-Cortes J, Cadenas-Sanchez MM. et al. Effects of traditional versus horizontal inertial flywheel power training on common sport-related tasks. J Hum Kinet 2015; 47: 155-167
    CrossrefPubMedGoogle Scholar
  • 14 World Medical Association Declaration of Helsinki. Ethical principles for medical research involving human subjects. JAMA. 2013; 310: 2191-2194
    CrossrefPubMedGoogle Scholar
  • 15 Harriss DJ, Macsween A, Atkinson G. Standards for ethics in sport and exercise science research: 2018 update. Int J Sports Med 2017; 38 14: 1126-1131
    Article in Thieme ConnectPubMedGoogle Scholar
  • 16 Koo TK, Li MY. A Guideline of selecting and reporting intraclass correlation coefficients for reliability research. J Chiropr Med 2016; 15: 155-163
    PubMedGoogle Scholar
  • 17 Cormack SJ, Newton RU, McGuigan MR, Doyle TL. Reliability of measures obtained during single and repeated countermovement jumps. Int J Sports Physiol Perform 2008; 3: 131-144
    CrossrefPubMedGoogle Scholar
  • 18 Hopkins WG, Marshall SW, Batterham AM, Hanin J. Progressive statistics for studies in sports medicine and exercise science. Med Sci Sports Exerc 2009; 41: 3-13
    PubMedGoogle Scholar
  • 19 Garcia-Hermoso A, Cavero-Redondo I, Ramirez-Velez R, Ruiz JR, Ortega FB, Lee DC. et al. Muscular strength as a predictor of all-cause mortality in an apparently healthy population: a systematic review and meta-analysis of data from approximately 2 million men and women. Arch Phys Med Rehabil 2018; 99: 2100-2113
    CrossrefPubMedGoogle Scholar
  • 20 Batterham AM, Hopkins WG. Making meaningful inferences about magnitudes. Int J Sports Physiol Perform 2006; 1: 50-57
    CrossrefPubMedGoogle Scholar
  • 21 Nunez FJ, Suarez-Arrones LJ, Cater P, Mendez-Villanueva A. The High-pull exercise: A comparison between a versapulley flywheel device and the free weight. Int J Sports Physiol Perform 2017; 12: 527-532
    CrossrefPubMedGoogle Scholar
  • 22 Katz B. The relation between force and speed in muscular contraction. J Physiol 1939; 96: 45-64
    CrossrefPubMedGoogle Scholar
  • 23 Komi PV, Buskirk ER. Effect of eccentric and concentric muscle conditioning on tension and electrical activity of human muscle. Ergonomics 1972; 15: 417-434
    CrossrefPubMedGoogle Scholar
  • 24 de Hoyo M, Pozzo M, Sanudo B, Carrasco L, Gonzalo-Skok O, Dominguez-Cobo S. et al. Effects of a 10-week in-season eccentric-overload training program on muscle-injury prevention and performance in junior elite soccer players. Int J Sports Physiol Perform 2015; 10: 46-52
    CrossrefPubMedGoogle Scholar
  • 25 Moras G, Vazquez-Guerrero J. Force production during squats performed with a rotational resistance device under stable versus unstable conditions. J Phys Ther Sci 2015; 27: 3401-3406
    CrossrefPubMedGoogle Scholar