Evidence map›Paper›PMID 31623659›Full record

Trial reportJournal of the International Society of Sports Nutrition2019

Caffeine and sodium bicarbonate supplementation alone or together improve karate performance.

Sajjad Rezaei, Kazem Akbari, Daniel E Gahreman, Amir Sarshin, Montassar Tabben, Mojtaba Kaviani, Alireza Sadeghinikoo, Majid S Koozehchian, Alireza Naderi

Open access · goldAbstract readRandomized Controlled Trial
PubMed Full text at PMC Publisher
In one paragraph

Trial report in Journal of the International Society of Sports Nutrition, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 6 pooled it
2.2field-weighted citation impact, top 14% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

18 citing papers in PubMed, 6 syntheses or guidelines pooled it, 29 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 9 institutions in 6 countries.

Sajjad RezaeiPhysical Education and Sport Sciences Department, Faculty of Humanities, Tarbiat Modares University, Tehran, Iran.
Kazem AkbariDepartment of exercise physiology, Faculty of Physical education and sport sciences, Kharazmi University, Tehran, Iran. akbari.kazem1982@gmail.com.
Daniel E GahremanCollege of Health and Human Sciences, Charles Darwin University, Darwin, Australia.
Amir SarshinFaculty of Physical education and sport sciences, Department of Exercise Physiology, Karaj Branch, Islamic Azad University, Karaj, Iran.
Montassar TabbenAspetar, Qatar Orthopaedic and Sports Medicine Hospital, Doha, Qatar.
Mojtaba KavianiSchool of Nutrition and Dietetics, Acadia University, Wolfville, Nova Scotia, Canada.
Alireza SadeghinikooSport Medicine Center, Oxygen Sport Group, Tehran, Iran.
Majid S KoozehchianDepartment of Kinesiology, Jacksonville State University, Jacksonville, AL, 36265, USA.
Alireza NaderiSports Physiology Department, Islamic Azad University, Boroujerd Branch, Boroujerd, Iran.
Acadia University · CACharles Darwin University · AUEnglish Institute of Sport · GBIslamic Azad University Boroujerd Branch · IRIslamic Azad University, Karaj · IRJacksonville State University · USKharazmi University · IRQatar Orthopaedic and Sports Medicine Hospital · QATarbiat Modares University · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe ergogenic properties of acute caffeine (CAF) and sodium bicarbonate (NaHCO

methodsIn a double-blind, crossover, randomized placebo-controlled trial, eight Karatekas underwent five experimental conditions including control (CON), placebo (PLA), CAF, NaHCO

resultsTTE was significantly greater following CAF, NaHCO

conclusionsKarate practitioners may benefit from the ergogenic effects of CAF and NaHCO

Indexed as

AdolescentAthletic PerformanceCaffeineCross-Over StudiesDouble-Blind MethodHumansMartial ArtsPerformance-Enhancing SubstancesSodium BicarbonateYoung AdultCaffeinePerformance-Enhancing SubstancesSodium BicarbonateBlood lactateCaffeineErgogenic aidKarateKarate-specific aerobic testRate of perceived exertionSodium bicarbonateTime to exhaustion

Identifiers

PMID31623659
PMCPMC6798418
OpenAlexW2980317639

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.