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Pre-Exercise Caffeine and Sodium Bicarbonate: Their Effects on Isometric Mid-Thigh Pull Performance in a Crossover, Double-Blind, Placebo-Controlled Study

dc.contributor.authorKaçoğlu, Celil
dc.contributor.authorKirkaya, İzzet
dc.contributor.authorCeylan, Halil İbrahim
dc.contributor.authorde Assis, Gilmara Gomes [UNESP]
dc.contributor.authorAlmeida-Neto, Paulo
dc.contributor.authorBayrakdaroğlu, Serdar
dc.contributor.authorChaves Oliveira, César
dc.contributor.authorÖzkan, Ali
dc.contributor.authorNikolaidis, Pantelis T.
dc.contributor.institutionEskişehir Technical University
dc.contributor.institutionYozgat Bozok University
dc.contributor.institutionAtatürk University
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionCCS-UFNR
dc.contributor.institutionGumushane University
dc.contributor.institutionSchool of Sports and Leisure
dc.contributor.institutionUniversity of West Attica
dc.date.accessioned2025-04-29T18:36:33Z
dc.date.issued2024-08-01
dc.description.abstractCaffeine and sodium bicarbonate are extensively researched ergogenic aids known for their potential to enhance exercise performance. The stimulant properties of caffeine on the central nervous system, coupled with the buffering capacity of sodium bicarbonate, have been associated with improved athletic performance. This has led to investigations of their combined effects on strength. The aim of the present study is to investigate the effect of isolated and combined caffeine and sodium bicarbonate consumption on strength using the isometric mid-thigh pull test (IMTP). Nineteen male college students (age 23.6 ± 1.6 years) participated in this crossover, double-blind, placebo-controlled study. They were exposed to the following conditions: control (no supplement), placebo (20 g maltodextrin), caffeine (6 mg/kg), sodium bicarbonate (0.3 g/kg), and a combination of caffeine and sodium bicarbonate. Supplements and placebo were diluted in water and consumed 60 min prior to the IMTP tests. Two 5 s IMTP trials were performed at 40–60% and 60–80% of One Repetition of Maximum (1RM) with a 60 s rest between. Consumption of caffeine or Caf + NaHCO3 did not significantly change peak IMTP strength values at any intensity (p = 0.110). The peak IMTP values did not show significant differences between conditions or from control condition values (1091 ± 100 N) to Caf (1224 ± 92 N), NaHCO3 (1222 ± 74 N), and Caf ± NaHCO3 (1152 ± 109 N). However, the test of the results of the ANOVA analysis of repeated measures of effect within the caffeine condition was significant for the increase in IMTP relative strength compared to control (p < 0.05). Thus, the IMTP force values increased significantly from control to Caf (p = 0.016) and from Pla to Caf (p = 0.008), but not for other comparisons (p > 0.05). In summary, caffeine supplementation alone, taken 60 min before exercise, positively affects submaximal strength performance. In contrast, sodium bicarbonate, whether taken alone or in combination with caffeine, does not enhance submaximal strength in the IMTP tests.en
dc.description.affiliationDepartment of Coaching Education Faculty of Sport Sciences Eskişehir Technical University
dc.description.affiliationDepartment of Coaching Education Faculty of Sport Sciences Yozgat Bozok University
dc.description.affiliationDepartment of Physical Education of Sports Teaching Faculty of Sports Sciences Atatürk University
dc.description.affiliationAraraquara School of Dentistry São Paulo State University (UNESP)
dc.description.affiliationDepartment of Physical Education Federal University of Rio Grande do Norte CCS-UFNR
dc.description.affiliationDepartment of Coaching Education Movement and Training Sciences School of Education and Sport Gumushane University
dc.description.affiliationPolytechnic Institute of Viana do Castelo School of Sports and Leisure
dc.description.affiliationSchool of Health and Caring Sciences University of West Attica
dc.description.affiliationUnespAraraquara School of Dentistry São Paulo State University (UNESP)
dc.identifierhttp://dx.doi.org/10.3390/sports12080206
dc.identifier.citationSports, v. 12, n. 8, 2024.
dc.identifier.doi10.3390/sports12080206
dc.identifier.issn2075-4663
dc.identifier.scopus2-s2.0-85202486302
dc.identifier.urihttps://hdl.handle.net/11449/298240
dc.language.isoeng
dc.relation.ispartofSports
dc.sourceScopus
dc.subjectcaffeine
dc.subjectcombined effect
dc.subjectergogenic aids
dc.subjectisometric mid-thigh pull
dc.subjectsodium bicarbonate
dc.subjectstrength
dc.subjectsupplements
dc.titlePre-Exercise Caffeine and Sodium Bicarbonate: Their Effects on Isometric Mid-Thigh Pull Performance in a Crossover, Double-Blind, Placebo-Controlled Studyen
dc.typeArtigopt
dspace.entity.typePublication
relation.isOrgUnitOfPublicationca4c0298-cd82-48ee-a9c8-c97704bac2b0
relation.isOrgUnitOfPublication.latestForDiscoveryca4c0298-cd82-48ee-a9c8-c97704bac2b0
unesp.author.orcid0000-0002-1817-5234[1]
unesp.author.orcid0000-0003-1133-5511[3]
unesp.author.orcid0000-0002-7198-3601[4]
unesp.author.orcid0000-0002-2860-2260[5]
unesp.author.orcid0000-0001-8030-7122[9]
unesp.campusUniversidade Estadual Paulista (UNESP), Faculdade de Odontologia, Araraquarapt

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