The effects of different doses of caffeine on performance, rating of perceived exertion and pain perception in teenagers female karate athletes
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Journal of Pharmaceutical Sciences |
Texto Completo: | https://www.revistas.usp.br/bjps/article/view/128421 |
Resumo: | The present study set to examine the effects of different doses of caffeine on performance, rating of perceived exertion (RPE), and pain perception in female teenager athletes of karate. Ten female karate athletes (16.8±1.23 years; height 1.59±0.28 m; body-mass 57.73±8.33 kg; BMI 22.71±3.05 kg/m2) participated in the study. A double-blind, randomized, and crossover counterbalanced design was used. In three sessions (with an interval of seven days'), ten female karate athletes ingested low dose (2 mg/kg), moderate dose (5 mg/kg) caffeine, and placebo. Sixty minutes after consumption, they performed the tests as below: one repetition maximum and 60% of one repetition maximum in the leg press, explosive power test, and anaerobic RAST test. After the tests, the participants' RPE (6-20 scale) and pain perception (0-10 scale) were recorded using various categorical scales. The results showed that caffeine ingestion at moderate dose significantly reduced RPE and pain perception values compared with the placebo during muscular endurance test (P=0.0001 and P=0.039, respectively). The findings suggest that caffeine dose of 5 mg/kg body mass appears to improve RPE and pain perception in female teenager athletes of karate. The dose of 2 mg/kg body mass does not confer any additional improvement in performance. |
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Brazilian Journal of Pharmaceutical Sciences |
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The effects of different doses of caffeine on performance, rating of perceived exertion and pain perception in teenagers female karate athletes The present study set to examine the effects of different doses of caffeine on performance, rating of perceived exertion (RPE), and pain perception in female teenager athletes of karate. Ten female karate athletes (16.8±1.23 years; height 1.59±0.28 m; body-mass 57.73±8.33 kg; BMI 22.71±3.05 kg/m2) participated in the study. A double-blind, randomized, and crossover counterbalanced design was used. In three sessions (with an interval of seven days'), ten female karate athletes ingested low dose (2 mg/kg), moderate dose (5 mg/kg) caffeine, and placebo. Sixty minutes after consumption, they performed the tests as below: one repetition maximum and 60% of one repetition maximum in the leg press, explosive power test, and anaerobic RAST test. After the tests, the participants' RPE (6-20 scale) and pain perception (0-10 scale) were recorded using various categorical scales. The results showed that caffeine ingestion at moderate dose significantly reduced RPE and pain perception values compared with the placebo during muscular endurance test (P=0.0001 and P=0.039, respectively). The findings suggest that caffeine dose of 5 mg/kg body mass appears to improve RPE and pain perception in female teenager athletes of karate. The dose of 2 mg/kg body mass does not confer any additional improvement in performance. Universidade de São Paulo. Faculdade de Ciências Farmacêuticas2016-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/bjps/article/view/12842110.1590/s1984-82502016000400012Brazilian Journal of Pharmaceutical Sciences; Vol. 52 Núm. 4 (2016); 685-692Brazilian Journal of Pharmaceutical Sciences; v. 52 n. 4 (2016); 685-692Brazilian Journal of Pharmaceutical Sciences; Vol. 52 No. 4 (2016); 685-6922175-97901984-8250reponame:Brazilian Journal of Pharmaceutical Sciencesinstname:Universidade de São Paulo (USP)instacron:USPenghttps://www.revistas.usp.br/bjps/article/view/128421/125273Copyright (c) 2018 Brazilian Journal of Pharmaceutical Sciences (Impresso)info:eu-repo/semantics/openAccessArazi, HamidHoseinihaji, MarziehEghbali, Ehsan2017-03-16T18:09:44Zoai:revistas.usp.br:article/128421Revistahttps://www.revistas.usp.br/bjps/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpbjps@usp.br||elizabeth.igne@gmail.com2175-97901984-8250opendoar:2017-03-16T18:09:44Brazilian Journal of Pharmaceutical Sciences - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
The effects of different doses of caffeine on performance, rating of perceived exertion and pain perception in teenagers female karate athletes |
title |
The effects of different doses of caffeine on performance, rating of perceived exertion and pain perception in teenagers female karate athletes |
spellingShingle |
The effects of different doses of caffeine on performance, rating of perceived exertion and pain perception in teenagers female karate athletes Arazi, Hamid |
title_short |
The effects of different doses of caffeine on performance, rating of perceived exertion and pain perception in teenagers female karate athletes |
title_full |
The effects of different doses of caffeine on performance, rating of perceived exertion and pain perception in teenagers female karate athletes |
title_fullStr |
The effects of different doses of caffeine on performance, rating of perceived exertion and pain perception in teenagers female karate athletes |
title_full_unstemmed |
The effects of different doses of caffeine on performance, rating of perceived exertion and pain perception in teenagers female karate athletes |
title_sort |
The effects of different doses of caffeine on performance, rating of perceived exertion and pain perception in teenagers female karate athletes |
author |
Arazi, Hamid |
author_facet |
Arazi, Hamid Hoseinihaji, Marzieh Eghbali, Ehsan |
author_role |
author |
author2 |
Hoseinihaji, Marzieh Eghbali, Ehsan |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Arazi, Hamid Hoseinihaji, Marzieh Eghbali, Ehsan |
description |
The present study set to examine the effects of different doses of caffeine on performance, rating of perceived exertion (RPE), and pain perception in female teenager athletes of karate. Ten female karate athletes (16.8±1.23 years; height 1.59±0.28 m; body-mass 57.73±8.33 kg; BMI 22.71±3.05 kg/m2) participated in the study. A double-blind, randomized, and crossover counterbalanced design was used. In three sessions (with an interval of seven days'), ten female karate athletes ingested low dose (2 mg/kg), moderate dose (5 mg/kg) caffeine, and placebo. Sixty minutes after consumption, they performed the tests as below: one repetition maximum and 60% of one repetition maximum in the leg press, explosive power test, and anaerobic RAST test. After the tests, the participants' RPE (6-20 scale) and pain perception (0-10 scale) were recorded using various categorical scales. The results showed that caffeine ingestion at moderate dose significantly reduced RPE and pain perception values compared with the placebo during muscular endurance test (P=0.0001 and P=0.039, respectively). The findings suggest that caffeine dose of 5 mg/kg body mass appears to improve RPE and pain perception in female teenager athletes of karate. The dose of 2 mg/kg body mass does not confer any additional improvement in performance. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-12-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://www.revistas.usp.br/bjps/article/view/128421 10.1590/s1984-82502016000400012 |
url |
https://www.revistas.usp.br/bjps/article/view/128421 |
identifier_str_mv |
10.1590/s1984-82502016000400012 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://www.revistas.usp.br/bjps/article/view/128421/125273 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2018 Brazilian Journal of Pharmaceutical Sciences (Impresso) info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2018 Brazilian Journal of Pharmaceutical Sciences (Impresso) |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade de São Paulo. Faculdade de Ciências Farmacêuticas |
publisher.none.fl_str_mv |
Universidade de São Paulo. Faculdade de Ciências Farmacêuticas |
dc.source.none.fl_str_mv |
Brazilian Journal of Pharmaceutical Sciences; Vol. 52 Núm. 4 (2016); 685-692 Brazilian Journal of Pharmaceutical Sciences; v. 52 n. 4 (2016); 685-692 Brazilian Journal of Pharmaceutical Sciences; Vol. 52 No. 4 (2016); 685-692 2175-9790 1984-8250 reponame:Brazilian Journal of Pharmaceutical Sciences instname:Universidade de São Paulo (USP) instacron:USP |
instname_str |
Universidade de São Paulo (USP) |
instacron_str |
USP |
institution |
USP |
reponame_str |
Brazilian Journal of Pharmaceutical Sciences |
collection |
Brazilian Journal of Pharmaceutical Sciences |
repository.name.fl_str_mv |
Brazilian Journal of Pharmaceutical Sciences - Universidade de São Paulo (USP) |
repository.mail.fl_str_mv |
bjps@usp.br||elizabeth.igne@gmail.com |
_version_ |
1800222912869826560 |