| Title |
Creatine Supplementation and Lower Limb Strength Performance: A Systematic Review and Meta-Analyses
|
|---|---|
| Published in |
Sports Medicine, May 2015
|
| DOI | 10.1007/s40279-015-0337-4 |
| Pubmed ID | |
| Authors |
Charlotte Lanhers, Bruno Pereira, Geraldine Naughton, Marion Trousselard, François-Xavier Lesage, Frédéric Dutheil |
| Abstract |
Creatine is the most widely used supplementation to increase strength performance. However, the few meta-analyses are more than 10 years old and suffer from inclusion bias such as the absence of randomization and placebo, the diversity of the inclusion criteria (aerobic/endurance, anaerobic/strength), no evaluation on specific muscles or group of muscles, and the considerable amount of conflicting results within the last decade. The objective of this systematic review was to evaluate meta-analyzed effects of creatine supplementation on lower limb strength performance. We conducted a systematic review and meta-analyses of all randomized controlled trials comparing creatine supplementation with a placebo, with strength performance of the lower limbs measured in exercises lasting less than 3 min. The search strategy used the keywords "creatine supplementation" and "performance". Dependent variables were creatine loading, total dose, duration, the time-intervals between baseline (T0) and the end of the supplementation (T1), as well as any training during supplementation. Independent variables were age, sex, and level of physical activity at baseline. We conducted meta-analyses at T1, and on changes between T0 and T1. Each meta-analysis was stratified within lower limb muscle groups and exercise tests. We included 60 studies (646 individuals in the creatine supplementation group and 651 controls). At T1, the effect size (ES) among stratification for squat and leg press were, respectively, 0.336 (95 % CI 0.047-0.625, p = 0.023) and 0.297 (95 % CI 0.098-0.496, p = 0.003). Overall quadriceps ES was 0.266 (95 % CI 0.150-0.381, p < 0.001). Global lower limb ES was 0.235 (95 % CI 0.125-0.346, p < 0.001). Meta-analysis on changes between T0 and T1 gave similar results. The meta-regression showed no links with characteristics of population or of supplementation, demonstrating the creatine efficacy effects, independent of all listed conditions. Creatine supplementation is effective in lower limb strength performance for exercise with a duration of less than 3 min, independent of population characteristic, training protocols, and supplementary doses and duration. |
X Demographics
The data shown below were collected from the profiles of 130 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 27 | 21% |
| Spain | 9 | 7% |
| Japan | 8 | 6% |
| United Kingdom | 8 | 6% |
| Canada | 4 | 3% |
| Belgium | 2 | 2% |
| Finland | 2 | 2% |
| Croatia | 2 | 2% |
| Netherlands | 2 | 2% |
| Other | 20 | 15% |
| Unknown | 46 | 35% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 82 | 63% |
| Scientists | 25 | 19% |
| Practitioners (doctors, other healthcare professionals) | 21 | 16% |
| Science communicators (journalists, bloggers, editors) | 2 | 2% |
Mendeley readers
The data shown below were compiled from readership statistics for 369 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 1 | <1% |
| Portugal | 1 | <1% |
| Poland | 1 | <1% |
| Brazil | 1 | <1% |
| Unknown | 365 | 99% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Bachelor | 82 | 22% |
| Student > Master | 49 | 13% |
| Student > Ph. D. Student | 33 | 9% |
| Researcher | 25 | 7% |
| Student > Postgraduate | 20 | 5% |
| Other | 44 | 12% |
| Unknown | 116 | 31% |
| Readers by discipline | Count | As % |
|---|---|---|
| Sports and Recreations | 88 | 24% |
| Medicine and Dentistry | 38 | 10% |
| Nursing and Health Professions | 35 | 9% |
| Agricultural and Biological Sciences | 19 | 5% |
| Biochemistry, Genetics and Molecular Biology | 14 | 4% |
| Other | 34 | 9% |
| Unknown | 141 | 38% |
Attention Score in Context
This research output has an Altmetric Attention Score of 128. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 26 January 2024.
All research outputs
#329,456
of 25,608,265 outputs
Outputs from Sports Medicine
#319
of 2,889 outputs
Outputs of similar age
#3,490
of 279,703 outputs
Outputs of similar age from Sports Medicine
#6
of 23 outputs
Altmetric has tracked 25,608,265 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 98th percentile: it's in the top 5% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 2,889 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 57.1. This one has done well, scoring higher than 88% of its peers.
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We're also able to compare this research output to 23 others from the same source and published within six weeks on either side of this one. This one has done well, scoring higher than 78% of its contemporaries.