Skeletal muscle and performance adaptations to high-intensity training in elite male soccer players: speed endurance runs versus small-sided game training

Dan Fransson, Tobias Schmidt Nielsen, Karl Olsson, Tobias Christensson, Paul S. Bradley, Ioannis G. Fatouros, Peter Krustrup, Nikolai Baastrup Nordsborg, Magni Mohr

Research output: Contribution to journalArticlepeer-review

38 Citations (Scopus)

Abstract

Purpose

To examine the skeletal muscle and performance responses across two different exercise training modalities which are highly applied in soccer training.
Methods

Using an RCT design, 39 well-trained male soccer players were randomized into either a speed endurance training (SET; n = 21) or a small-sided game group (SSG; n = 18). Over 4 weeks, thrice weekly, SET performed 6–10 × 30-s all-out runs with 3-min recovery, while SSG completed 2 × 7–9-min small-sided games with 2-min recovery. Muscle biopsies were obtained from m. vastus lateralis pre and post intervention and were subsequently analysed for metabolic enzyme activity and muscle protein expression. Moreover, the Yo–Yo Intermittent Recovery level 2 test (Yo–Yo IR2) was performed.
Results

Muscle CS maximal activity increased (P Conclusion

Speed endurance training improved muscle oxidative capacity and exercise performance more pronouncedly than small-sided game training, but comparable responses were in muscle ion transporters and antioxidative capacity in well-trained male soccer players.
Original languageEnglish
Pages (from-to)111-121
Number of pages11
JournalEuropean Journal of Applied Physiology
Volume118
Issue number1
DOIs
Publication statusPublished - 2018

Keywords

  • Antioxidant capacity
  • Intermittent exercise
  • Muscle fatigue
  • Muscle oxidative capacity
  • Na+–K+
  • ATPase activity
  • football
  • men

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