Evidence map›Paper›PMID 29119246›Full record

Trial reportEuropean journal of applied physiology2018

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

Abstract readRandomized Controlled Trial
PubMed Full text at PMC Publisher
In one paragraph

Trial report in European journal of applied physiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

28 citing papers in PubMed, 1 synthesis or guideline pooled it.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Dan FranssonDepartment of Food and Nutrition, and Sport Science, Center for Health and Human Performance, University of Gothenburg, Gothenburg, Sweden.
Tobias Schmidt NielsenDepartment of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark.
Karl OlssonDepartment of Health and Caring Sciences, Linnaeus University, Kalmar, Sweden.
Tobias ChristenssonDepartment of Food and Nutrition, and Sport Science, Center for Health and Human Performance, University of Gothenburg, Gothenburg, Sweden.
Paul S BradleyResearch Institute of Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, UK.
Ioannis G FatourosSchool of Physical Education and Sport Science, University of Thessaly, Karies, Trikala, Greece.
Peter KrustrupDepartment of Sports Science and Clinical Biomechanics, SDU Sport and Health Sciences Cluster (SHSC), University of Southern Denmark, Odense, Denmark.
Nikolai Baastrup NordsborgDepartment of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark.
Magni MohrDepartment of Food and Nutrition, and Sport Science, Center for Health and Human Performance, University of Gothenburg, Gothenburg, Sweden. magnim@setur.fo.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

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

methodsUsing 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.

resultsMuscle 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

conclusionSpeed 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.

Indexed as

Adaptation, PhysiologicalPhysical EnduranceHigh-Intensity Interval TrainingHumansMaleMuscle ProteinsMuscle, SkeletalSoccerYoung AdultMuscle ProteinsAntioxidant capacityFootballIntermittent exerciseMuscle fatigueMuscle oxidative capacityNa+–K+ ATPase activity

Identifiers

PMID29119246
PMCPMC5754420

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.