| Title |
Caffeine affects autonomic control of heart rate and blood pressure recovery after aerobic exercise in young adults: a crossover study
|
|---|---|
| Published in |
Scientific Reports, October 2017
|
| DOI | 10.1038/s41598-017-14540-4 |
| Pubmed ID | |
| Authors |
Luana Almeida Gonzaga, Luiz Carlos Marques Vanderlei, Rayana Loch Gomes, Vitor Engrácia Valenti |
| Abstract |
The post-exercise recovery period is associated with changes in autonomic modulation, which can promote an intercurrent-favorable environment. Caffeine has the ability to release catecholamines, but its effects after exercises is little explored. The present study aims to evaluate the acute effects of caffeine on the autonomic control and cardiorespiratory parameters after moderate intensity aerobic exercise. 32 young males (23,59 ± 3,45 years) were submitted to two protocols: Placebo and Caffeine, consisting of 15 minutes of rest, 30 minutes of exercise on a treadmill to 60% on VO2peak, followed by 60 minutes of recovery. Heart rate variability indices and cardiorespiratory parameters were determined at different times during the protocols. The RMSSD and SD1 indices recovered faster in placebo (p < 0.05). The systolic blood pressure differences were found from the 1st to the 5th minute of recovery with the caffeine protocol and from the 1st and 3rd minute with the placebo, whereas, for diastolic blood pressure, significant differences (p < 0.0001) were observed only for the caffeine protocol at the 1st and 3rd minutes of recovery. Caffeine was shown to be capable of delaying parasympathetic recovery but did not influence the behavior of the respiratory rate, oxygen saturation or frequency-domain HRV indices. |
X Demographics
The data shown below were collected from the profiles of 10 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 | 3 | 30% |
| New Zealand | 1 | 10% |
| Brazil | 1 | 10% |
| Netherlands | 1 | 10% |
| Unknown | 4 | 40% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 5 | 50% |
| Scientists | 4 | 40% |
| Practitioners (doctors, other healthcare professionals) | 1 | 10% |
Mendeley readers
The data shown below were compiled from readership statistics for 248 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 248 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Bachelor | 67 | 27% |
| Student > Master | 23 | 9% |
| Student > Postgraduate | 9 | 4% |
| Student > Doctoral Student | 9 | 4% |
| Lecturer | 8 | 3% |
| Other | 25 | 10% |
| Unknown | 107 | 43% |
| Readers by discipline | Count | As % |
|---|---|---|
| Sports and Recreations | 26 | 10% |
| Nursing and Health Professions | 23 | 9% |
| Medicine and Dentistry | 23 | 9% |
| Biochemistry, Genetics and Molecular Biology | 19 | 8% |
| Agricultural and Biological Sciences | 12 | 5% |
| Other | 36 | 15% |
| Unknown | 109 | 44% |
Attention Score in Context
This research output has an Altmetric Attention Score of 36. 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 19 November 2023.
All research outputs
#1,123,572
of 25,551,063 outputs
Outputs from Scientific Reports
#11,415
of 141,705 outputs
Outputs of similar age
#23,107
of 338,649 outputs
Outputs of similar age from Scientific Reports
#395
of 4,688 outputs
Altmetric has tracked 25,551,063 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 95th percentile: it's in the top 5% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 141,705 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 18.8. This one has done particularly well, scoring higher than 91% 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 338,649 tracked outputs that were published within six weeks on either side of this one in any source. This one has done particularly well, scoring higher than 93% of its contemporaries.
We're also able to compare this research output to 4,688 others from the same source and published within six weeks on either side of this one. This one has done particularly well, scoring higher than 91% of its contemporaries.