Evidence map›Paper›PMID 30400221›Full record

Trial reportNutrients2018

Effects of 4-Week Creatine Supplementation Combined with Complex Training on Muscle Damage and Sport Performance.

Chia-Chi Wang, Chu-Chun Fang, Ying-Hsian Lee, Ming-Ta Yang, Kuei-Hui Chan

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

Trial report in Nutrients, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 9 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed, 9 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

34 citing papers in PubMed, 9 syntheses or guidelines 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

5 authors.

Chia-Chi WangPhysical Education Office, National Taipei University of Business, Taipei 10051, Taiwan. sunnywang@ntub.edu.tw.
Chu-Chun FangPhysical Education Office, National Taipei University of Business, Taipei 10051, Taiwan. kammyfang@ntub.edu.tw.
Ying-Hsian LeeGraduate Institute of Athletics and Coaching Science, National Taiwan Sport University, Taoyuan 33301, Taiwan. 1040303@ntsu.edu.tw.
Ming-Ta YangCentre for General Education, Taipei Medical University, Taipei 10031, Taiwan. yangrugby@gmail.com.
Kuei-Hui ChanGraduate Institute of Athletics and Coaching Science, National Taiwan Sport University, Taoyuan 33301, Taiwan. quenhuen@gmail.com.

Funding

Ministry of Science and Technology, Taiwan MOST 102-2410-H-179-002
6 · The paper itself

Abstract

Creatine supplementation has an ergogenic effect in an acute complex training bout, but the benefits of chronic creatine supplementation during long-term complex training remain unknown. The study aimed to evaluate the effects of 4-week complex training combined with creatine supplementation on sport performances and muscle damage biomarkers. Thirty explosive athletes were assigned to the creatine or placebo group, which consumed 20 g of creatine or carboxymethyl cellulose, respectively, per day for 6 days followed by 2 g of the supplements until the end of the study. After 6 days of supplementation, subjects performed tests of one repetition maximum (1-RM) strength of half squat and complex training bouts to determine the optimal individual post-activation potentiation time. Thereafter, all subjects performed a complex training programme consisting of six sets of 5-RM half squats and plyometric jumps 3 times per week for 4 weeks. Body composition, 30-m sprint and jump performances were assessed before and after the training period. Moreover, blood creatine kinase (CK) activity was analysed at the first and the last training bout. After the training, the 1-RM strength in the creatine group was significantly greater than in the placebo group (

Indexed as

AthletesSportsAdolescentBody CompositionCreatineDietary SupplementsDouble-Blind MethodDrug Administration ScheduleExerciseHumansMaleMuscle, SkeletalPerformance-Enhancing SubstancesResistance TrainingYoung AdultCreatinePerformance-Enhancing Substancescreatine kinasehalf squatoptimal individual post-activation potentiation timeplyometric jump

Identifiers

PMID30400221
PMCPMC6265971

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.