| Title |
Caffeine-containing energy drink improves physical performance in female soccer players
|
|---|---|
| Published in |
Amino Acids, March 2014
|
| DOI | 10.1007/s00726-014-1709-z |
| Pubmed ID | |
| Authors |
Beatriz Lara, Cristina Gonzalez-Millán, Juan Jose Salinero, Javier Abian-Vicen, Francisco Areces, Jose Carlos Barbero-Alvarez, Víctor Muñoz, Luis Javier Portillo, Jose Maria Gonzalez-Rave, Juan Del Coso |
| Abstract |
There is little information about the effects of caffeine intake on female team-sport performance. The aim of this study was to investigate the effectiveness of a caffeine-containing energy drink to improve physical performance in female soccer players during a simulated game. A double-blind, placebo controlled and randomized experimental design was used in this investigation. In two different sessions, 18 women soccer players ingested 3 mg of caffeine/kg in the form of an energy drink or an identical drink with no caffeine content (placebo). After 60 min, they performed a countermovement jump (CMJ) and a 7 × 30 m sprint test followed by a simulated soccer match (2 × 40 min). Individual running distance and speed were measured using GPS devices. In comparison to the placebo drink, the ingestion of the caffeinated energy drink increased the CMJ height (26.6 ± 4.0 vs 27.4 ± 3.8 cm; P < 0.05) and the average peak running speed during the sprint test (24.2 ± 1.6 vs 24.5 ± 1.7 km/h; P < 0.05). During the simulated match, the energy drink increased the total running distance (6,631 ± 1,618 vs 7,087 ± 1,501 m; P < 0.05), the number of sprints bouts (16 ± 9 vs 21 ± 13; P < 0.05) and the running distance covered at >18 km/h (161 ± 99 vs 216 ± 103 m; P < 0.05). The ingestion of the energy drink did not affect the prevalence of negative side effects after the game. An energy drink with a dose equivalent to 3 mg of caffeine/kg might be an effective ergogenic aid to improve physical performance in female soccer players. |
X Demographics
The data shown below were collected from the profiles of 11 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 | 4 | 36% |
| United Kingdom | 3 | 27% |
| Spain | 2 | 18% |
| Australia | 1 | 9% |
| Brazil | 1 | 9% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Scientists | 5 | 45% |
| Practitioners (doctors, other healthcare professionals) | 4 | 36% |
| Members of the public | 2 | 18% |
Mendeley readers
The data shown below were compiled from readership statistics for 348 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Spain | 2 | <1% |
| United Kingdom | 1 | <1% |
| United States | 1 | <1% |
| Austria | 1 | <1% |
| Unknown | 343 | 99% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Bachelor | 76 | 22% |
| Student > Master | 63 | 18% |
| Researcher | 21 | 6% |
| Student > Postgraduate | 21 | 6% |
| Student > Ph. D. Student | 20 | 6% |
| Other | 48 | 14% |
| Unknown | 99 | 28% |
| Readers by discipline | Count | As % |
|---|---|---|
| Sports and Recreations | 119 | 34% |
| Nursing and Health Professions | 33 | 9% |
| Medicine and Dentistry | 31 | 9% |
| Agricultural and Biological Sciences | 15 | 4% |
| Biochemistry, Genetics and Molecular Biology | 9 | 3% |
| Other | 31 | 9% |
| Unknown | 110 | 32% |
Attention Score in Context
This research output has an Altmetric Attention Score of 7. 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 18 November 2020.
All research outputs
#4,751,785
of 23,861,036 outputs
Outputs from Amino Acids
#285
of 1,546 outputs
Outputs of similar age
#45,076
of 224,017 outputs
Outputs of similar age from Amino Acids
#11
of 27 outputs
Altmetric has tracked 23,861,036 research outputs across all sources so far. Compared to these this one has done well and is in the 80th percentile: it's in the top 25% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 1,546 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 7.1. This one has done well, scoring higher than 81% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 224,017 tracked outputs that were published within six weeks on either side of this one in any source. This one has done well, scoring higher than 79% of its contemporaries.
We're also able to compare this research output to 27 others from the same source and published within six weeks on either side of this one. This one has gotten more attention than average, scoring higher than 62% of its contemporaries.