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Effects of Resistance Training on the Physical Capacities of Adolescent Soccer Players

Christou, Marios, Smilios, Ilias, Sotiropoulos, Konstantinos, Volaklis, Konstantinos, Pilianidis, Theofilos, Tokmakidis, Savvas P.·2006·The Journal of Strength and Conditioning Research
DOI 10.1519/r-17254.1
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Abstract

This study examined the effects of a progressive resistance training program in addition to soccer training on the physical capacities of male adolescents. Eighteen soccer players (age: 12-15 years) were separated in a soccer (SOC; n = 9) and a strength-soccer (STR; n = 9) training group and 8 subjects of similar age constituted a control group. All players followed a soccer training program 5 times a week for the development of technical and tactical skills. In addition, the STR group followed a strength training program twice a week for 16 weeks. The program included 10 exercises, and at each exercise, 2-3 sets of 8-15 repetitions with a load 55-80% of 1 repetition maximum (1RM). Maximum strength ([1RM] leg press, bench-press), jumping ability (squat jump [SJ], countermovement jump [CMJ], repeated jumps for 30 seconds) running speed (30 m, 10 x 5-m shuttle run), flexibility (seat and reach), and soccer technique were measured at the beginning, after 8 weeks, and at the end of the training period. After 16 weeks of training, 1RM leg press, 10 x 5-m shuttle run speed, and performance in soccer technique were higher (p < 0.05) for the STR and the SOC groups than for the control group. One repetition maximum bench press and leg press, SJ and CMJ height, and 30-m speed were higher (p < 0.05) for the STR group compared with SOC and control groups. The above data show that soccer training alone improves more than normal growth maximum strength of the lower limps and agility. The addition of resistance training, however, improves more maximal strength of the upper and the lower body, vertical jump height, and 30-m speed. Thus, the combination of soccer and resistance training could be used for an overall development of the physical capacities of young boys.

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  • Sensitivity analysis removing the highest effect size still showed a significant moderate effect in favor of resistance training.

    “Similarly, the removal of the highest ES (1.712 by Christou et al. [38]) still provided a significant moderate effect in favor of RT with a similar heterogeneity (ES = − 0.759; p < 0.001, I2 = 71.78%).”

    From Resistance Training Induces Improvements in Range of Motion: A Systematic Review and Meta-Analysis (2023) · cites this paper as [38]

  • Sensitivity analysis removing both the highest and lowest effect sizes still showed a significant moderate effect in favor of resistance training.

    “Finally, by removing both the highest and lowest ES [38, 76], we also found a significant moderate effect in favor of RT while heterogeneity decreased (ES = − 0.696; p < 0.001, I2 = 64.07%).”

    From Resistance Training Induces Improvements in Range of Motion: A Systematic Review and Meta-Analysis (2023) · cites this paper as [38]

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Authors
Christou, M., Smilios, I., Sotiropoulos, K., Volaklis, K., Pilianidis, T., & Tokmakidis, S. P.
Affiliations
Democritus University of Thrace (GR)
ORCID
Venue
The Journal of Strength and Conditioning Research
Publisher
Ovid Technologies (Wolters Kluwer Health)
Published
2006
Volume
20
Issue
4
Pages
783
ISSN
  • 1064-8011 (ISSN-L)
  • 1533-4287
DOI
10.1519/r-17254.1
OpenAlex
W2071549027
Cited by
275
References
0
Citations by year
2026: 2 · 2025: 13 · 2024: 11 · 2023: 11 · 2022: 15 · 2021: 20 · 2020: 11 · 2019: 13 · 2018: 20 · 2017: 18 · 2016: 19 · 2015: 19 · 2014: 25 · 2013: 19 · 2012: 14
FWCI
5.79
Type
journal article
Language
en
Open access
closed
Locations
  • The Journal of Strength and Conditioning Research (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Orthopedics and Sports Medicine › Sports Performance and Training
  • Health Sciences › Health Professions › Physical Therapy, Sports Therapy and Rehabilitation › Physical Education and Training Studies
  • Health Sciences › Medicine › Orthopedics and Sports Medicine › Sports injuries and prevention
Keywords
resistance training, adolescent soccer players, youth football, physical capacity, maximal strength, vertical jump, agility, sprint speed, flexibility, soccer technique, concurrent training
MeSH terms
Adolescent, Analysis of Variance, Anthropometry, Child, Humans, Male, Movement, Physical Education and Training, Physical Endurance, Running, Soccer

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