Research Output

Changes in lactate kinetics underpin soccer performance adaptations to cycling-based sprint interval training

  In adolescent soccer, 23% of the distance covers happens at speeds above onset of blood lactate accumulation which suggests that lactate kinetics may be important for soccer performance. We sought to determine the effectiveness of sprint interval training (SIT) on changing performance and lactate kinetics in adolescent soccer players. Thirteen elite soccer academy players (age 15 ± 0.5y) underwent baseline testing (0–10 m and 10–20 m sprint performance, Wingate anaerobic Test (WaNT) with blood lactate measurements and incremental VO2 peak test) before being allocated to control or SIT group. The control group maintained training whilst the HIT group carried out twice-weekly all-out effort cycle sprints consisting of 6 × 10 s sprint with 80 s recovery. There were significant time x group interactions for 10–20 m sprint time (Control pre: 1.32 ± 0.07 s post: 1.35 ± 0.08 s; SIT pre: 1.29 ± 0.04 s post: 1.25 ± 0.04 s; p = 0.01), Peak Power (Control pre: 13.1 ± 1.3 W.kg⁻¹ post: 13.2 ± 1.47 W.kg⁻¹; SIT pre: 12.4 ± 1.3 W.kg⁻¹ post: 15.3 ± 0.7 W.kg⁻¹; p = 0.01) and time to exhaustion (Control pre: 596 ± 62 s post: 562 ± 85 s; SIT pre: 655 ± 54 s post: 688 ± 55 s; p = 0.001). The changes in performance were significantly correlated to changes in lactate kinetics (power: r = 0.55; 10–20 m speed: r = −0.54; time to exhaustion: r = 0.55). Therefore, cycle based SIT is an effective training paradigm for elite adolescent soccer players and the improvements in performance are associated with changes in lactate kinetics.

  • Type:

    Article

  • Date:

    16 July 2019

  • Publication Status:

    Published

  • Publisher

    Informa UK Limited

  • DOI:

    10.1080/17461391.2019.1635650

  • Cross Ref:

    10.1080/17461391.2019.1635650

  • ISSN:

    1746-1391

  • Library of Congress:

    RC1200 Sports Medicine

  • Dewey Decimal Classification:

    796 Athletic & outdoor sports & games

  • Funders:

    Abertay University

Citation

Thom, G., Kavaliauskas, M., & Babraj, J. (in press). Changes in lactate kinetics underpin soccer performance adaptations to cycling-based sprint interval training. European Journal of Sport Science, 1-9. https://doi.org/10.1080/17461391.2019.1635650

Authors

Keywords

Metabolism, team sport, youth, physiology

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