Effects of Plyometric Training with Agility Ladder on Physical Fitness in Youth Soccer Players

Abstract

The aim of this study was to assess the effects of plyometric training with an agility ladder on components of physical fitness in youth soccer players. A total of twenty male under-13 soccer players were randomly assigned to a plyometric training group with an agility ladder (n=10) or a control group (n=10). Before and after training intervention linear sprint test (5 m, 10 m, 20 m), vertical jump ability (squat jump, countermovement jump and countermovement jump with arms), agility test, and slalom dribble test were assessed. The plyometric training with agility ladder was applied two times per week over six weeks. Data were analyzed using linear mixed model. The plyometric training group showed significant improvements (p<0.001) from pre-test to post-test in countermovement jump, countermovement jump with arms, and slalom dribble test. In the control group, no significant enhancements were obtained in all performance tests (p>0.05). The between-group analysis showed significant differences in countermovement jump with arms (p=0.03), but no significant differences (p>0.05) were found in squat jump, countermovement jump, sprint, agility test, and slalom dribble test. In conclusion, the short-term plyometric training with agility ladder seems to be ineffective and not time-efficient to improve physical fitness in youth soccer players. However, the interpretation of these results must be understood within the sample size limitations.

Key words

stretch-shortening cycle - explosive strength - football - team sports

Publication History

Received: 21 June 2020

Accepted: 02 November 2020

Article published online:
16 February 2021

• References

• 1 Beato M, Bianchi M, Coratella G. et al. Effects of plyometric and directional training on speed and jump performance in elite youth soccer players. J Strength Cond Res 2018; 32: 289-296
• 2 Bradley PS, Archer DT, Hogg B. et al. Tier-specific evolution of match performance characteristics in the English Premier League: It’s getting tougher at the top. J Sports Sci 2016; 34: 980-987
• 3 Bush M, Barnes C, Archer DT. et al. Evolution of match performance parameters for various playing positions in the English Premier League. Hum Movement Sci 2015; 39: 1-11
• 4 Asadi A, Ramirez-Campillo R, Arazi H. et al. The effects of maturation on jumping ability and sprint adaptations to plyometric training in youth soccer players. J Sports Sci 2018; 36: 2405-2411
• 5 Faude O, Koch T, Meyer T. Straight sprinting is the most frequent action in goal situations in professional football. J Sports Sci 2012; 30: 625-631
• 6 Söhnlein Q, Müller E, Stöggl TL. The effect of 16-week plyometric training on explosive actions in early to mid-puberty elite soccer players. J Strength Cond Res 2014; 28: 2105-2114
• 7 Thomas K, French D, Hayes PR. The effect of two plyometric training techniques on muscular power and agility in youth soccer players. J Strength Cond Res 2009; 23: 332-335
• 8 Murtagh CF, Brownlee TE, O'Boyle A. et al. Importance of speed and power in elite youth soccer depends on maturation status. J Strength Cond Res 2018; 32: 297-303
• 9 Deprez DN, Fransen J, Lenoir M. et al. A retrospective study on anthropometrical, physical fitness, and motor coordination characteristics that influence dropout, contract status, and first-team playing time in high-level soccer players aged eight to eighteen years. J Strength Cond Res 2015; 29: 1692-1704
• 10 Ramirez-Campillo R, Sanchez-Sanchez J, Gonzalo-Skok O. et al. Specific changes in young soccer player's fitness after traditional bilateral vs. unilateral combined strength and plyometric training. Front Physiol 2018; 9: 265
• 11 Ramirez-Campillo R, Alvarez C, García-Pinillos F. et al. Effects of plyometric training on physical performance of young male soccer players: Potential effects of different drop jump heights. Pediatr Exerc Sci 2019; 31: 306-313
• 12 Chaabene H, Negra Y. The effect of plyometric training volume in prepubertal male soccer players’ athletic performance. Int J Sports Physiol Perform 2017; 9: 1205-1211
• 13 Negra Y, Chaabene H, Sammoud S. et al. The increased effectiveness of loaded versus unloaded plyometric jump training in improving muscle power, speed, change of direction, and kicking-distance performance in prepubertal male soccer players. Int J Sports Physiol Perform 2020; 15: 189-195
• 14 Ramírez-Campillo R, Burgos CH, Henríquez-Olguín C. et al. Effect of unilateral, bilateral, and combined plyometric training on explosive and endurance performance of young soccer players. J Strength Cond Res 2015; 29: 1317-1328
• 15 Kobal R, Pereira LA, Zanetti V. et al. Effects of unloaded vs. loaded plyometrics on speed and power performance of elite young soccer players. Front Physiol 2017; 8: 742
• 16 Yanci J, Castillo D, Iturricastillo A. et al. Effects of two different volume-equated weekly distributed short-term plyometric training programs on futsal players' physical performance. J Strength Cond Res 2017; 31: 1787-1794
• 17 Bouguezzi R, Chaabene H, Negra Y. et al. Effects of different plyometric training frequency on measures of athletic performance in prepuberal male soccer players. J Strength Cond Res 2018; 34: 1609-1617
• 18 Granacher U, Prieske O, Majewski M. et al. The role of instability with plyometric training in sub-elite adolescent soccer players. Int J Sports Med 2015; 36: 386-394
• 19 Negra Y, Chaabene H, Sammoud S. et al. Effects of plyometric training on components of physical fitness in prepuberal male soccer athletes: The role of surface instability. J Strength Cond Res 2017; 31: 3295-3304
• 20 Ramirez-Campillo R, Alvarez C, Gentil P. et al. Sequencing effects of plyometric training applied before or after regular soccer training on measures of physical fitness in young players. J Strength Cond Res 2020; 34: 1959-1966
• 21 Arcos AL, Yanci J, Mendiguchia J. et al. Short-term training effects of vertically and horizontally oriented exercises on neuromuscular performance in professional soccer players. Int J Sports Physiol Perform 2014; 9: 480-488
• 22 Bouguezzi R, Chaabene H, Negra Y. et al. Effects of jump exercises with and without stretch-shortening cycle actions on components of physical fitness in prepubertal male soccer players. Sport Sci Health 2020; 16: 297-304
• 23 Asadi A, Arazi H, Ramirez-Campillo R. et al. Influence of maturation stage on agility performance gains after plyometric training: A systematic review and meta-analysis. J Strength Cond Res 2017; 31: 2609-2617
• 24 Lloyd RS, Meyers RW. et al. The natural development and trainability of plyometric ability during childhood. Strength Cond J 2011; 33: 23-32
• 25 Afonso J, da Costa I, Camões M. et al. The effects of agility ladders on performance: A systematic review. Int J Sports Med 2020; 41: 720-728
• 26 Wong DP, Chaouachi A, Dellal A. et al. Comparison of ground reaction forces and contact times between 2 lateral plyometric exercises in professional soccer players. Int J Sports Med 2012; 33: 647-653
• 27 Padrón-Cabo A, Rey E, Kalén A. et al. Effects of training with an agility ladder on sprint, agility, and dribbling performance in youth soccer players. J Hum Kinet 2020; 73: 219-228
• 28 Harriss DJ, MacSween A, Atkinson G. Ethical standards in sport and exercise science research: 2020 update. Int J Sports Med 2019; 40: 813-817
• 29 Dardouri W, Selmi MA, Sassi RH. et al. Reliability and discriminative power of soccer-specific field tests and skill index in young soccer players. Sci Sports 2014; 29: 88-94
• 30 Bosco C, Komi PV, Tihanyi J. et al. Mechanical power test and fiber composition of human leg extensor muscles. Eur J Appl Physiol Occup Physiol 1983; 51: 129-135
• 31 Ramírez-Campillo R, Meylan CM, Álvarez-Lepín C. et al. The effects of interday rest on adaptation to 6 weeks of plyometric training in young soccer players. J Strength Cond Res 2015; 29: 972-979
• 32 Ramirez-Campillo R, Andrade DC, Álvarez C. et al. The effects of interset rest on adaptation to 7 weeks of explosive training in young soccer players. J Sports Sci Med 2014; 13: 287-296
• 33 R Core Team. R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria: 2020. https://www.eea.europa.eu/data-and-maps/indicators/oxygen-consuming-substances-in-rivers/r-development-core-team-2006
• 34 Bates D, Mächler M, Bolker B. et al. Fitting linear mixed-effects models using lme4. J Stat Softw 2015; 67: 1-48
• 35 Hopkins WG, Marshall S, Batterham A. Progressive statistics for studies in sports medicine and exercise science. Med Sci Sports Exerc 2009; 41: 3-13
• 36 Markovic G, Mikulic P. Neuro-musculoskeletal and performance adaptations to lower-extremity plyometric training. Sports Med 2010; 40: 859-895
• 37 Meyers RW, Oliver JL, Hughes MG. et al. Maximal sprint speed in boys of increasing maturity. Pediatr Exerc Sci 2015; 27: 85-94
• 38 Moran J, Sandercock G, Rumpf MC. et al. Variation in responses to sprint training in male youth athletes: A meta-analysis. Int J Sports Med 2017; 38: 1-11
• 39 Oliver JL, Rumpf MC. Speed development in youths. In Lloyd R, Oliver J. Strength and Conditioning for Young Athletes: Science and Application. London: Routledge; 2014: 80-93
• 40 Hammami M, Negra Y, Aouadi R. et al. Effects of an in-season plyometric training program on repeated change of direction and sprint performance in the junior soccer player. J Strength Cond Res 2016; 30: 3312-3320
• 41 Trecroci A, Longo S, Perri E. et al. Field-based physical performance of elite and sub-elite middle-adolescent soccer players. Res Sports Med 2019; 27: 60-71
• 42 Asadi A, Arazi H, Young WB. et al. The effects of plyometric training on change-of-direction ability: A meta-analysis. Int J Sports Physiol Perform 2016; 11: 563-573
• 43 Huijgen BC, Elferink-Gemser MT, Post W. et al. Development of dribbling in talented youth soccer players aged 12-19 years: A longitudinal study. J Sports Sci 2010; 28: 689-698
• 44 Michailidis Y, Fatouros IG, Primpa E. et al. Plyometrics' trainability in preadolescent soccer athletes. J Strength Cond Res 2013; 27: 38-49
• 45 Vissing K, Brink M, Lønbro S. Muscle adaptations to plyometric vs. resistance training in untrained young men. J Strength Cond Res 2008; 22: 1799-1810
• 46 Bobbert MF, Mackay M, Schinkelshoek D. et al. Biomechanical analysis of drop and countermovement jumps. Eur J Appl Physiol Occup Physiol 1986; 54: 566-573
• 47 Bedoya AA, Miltenberger MR, Lopez RM. Plyometric training effects on athletic performance in youth soccer athletes: a systematic review. J Strength Cond Res 2015; 29: 2351-2360
• 48 de Villarreal ES, Kellis E, Kraemer WJ. et al. Determining variables of plyometric training for improving vertical jump height performance: A meta-analysis. J Strength Cond Res 2009; 23: 495-506
• 49 Markovic G. Does plyometric training improve vertical jump height? A meta-analytical review. Br J Sports Med 2007; 41: 349-355
• 50 Weiss LW, Relyea GE, Ashley CD. et al. Using velocity-spectrum squats and body composition to predict standing vertical jump ability. J Strength Cond Res 1997; 11: 14-20
• 51 Paul DJ, Gabbett TJ, Nassis GP. Agility in team sports: Testing, training and factors affecting performance. Sports Med 2016; 46: 421-442