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Fransson, D, Nielsen, TS, Olsson, K, Christensson, T, Bradley, PS, Fatouros, IG, Krustrup, P, Nordsborg, NB and Mohr, M (2017) Skeletal muscle and performance adaptations to high-intensity training in elite male soccer players: speed endurance runs versus small-sided game training. European Journal of Applied Physiology. ISSN 1439-6327
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Skeletal muscle and performance adaptations to high-intensity training in elite male soccer players speed endurance runs versus small-sided game training.pdf - Published Version Available under License Creative Commons Attribution. Download (714kB) | Preview |
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 < 0.05) by 18% in SET only, demonstrating larger (P < 0.05) improvement than SSG, while HAD activity increased (P < 0.05) by 24% in both groups. Na(+)-K(+) ATPase α1 subunit protein expression increased (P < 0.05) in SET and SSG (19 and 37%, respectively), while MCT4 protein expression rose (P < 0.05) by 30 and 61% in SET and SSG, respectively. SOD2 protein expression increased (P < 0.05) by 28 and 37% in SET and SSG, respectively, while GLUT-4 protein expression increased (P < 0.05) by 40% in SSG only. Finally, SET displayed 39% greater improvement (P < 0.05) in Yo-Yo IR2 performance than SSG. 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.
| Item Type: | Article |
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| Uncontrolled Keywords: | 1106 Human Movement And Sports Science |
| Subjects: | Q Science > QP Physiology R Medicine > RC Internal medicine > RC1200 Sports Medicine |
| Divisions: | Sport & Exercise Sciences |
| Publisher: | Springer Verlag |
| Related URLs: | |
| Date Deposited: | 23 Nov 2017 10:15 |
| Last Modified: | 04 Sep 2021 10:58 |
| DOI or ID number: | 10.1007/s00421-017-3751-5 |
| URI: | https://researchonline.ljmu.ac.uk/id/eprint/7585 |
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