Eight Days of L-Citrulline or L-Arginine Suplementation Did Not Improve 200-m and 100-m Swimming Time Trials
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23420%2F22%3A43964903" target="_blank" >RIV/49777513:23420/22:43964903 - isvavai.cz</a>
Result on the web
<a href="https://mdpi-res.com/d_attachment/ijerph/ijerph-19-04462/article_deploy/ijerph-19-04462.pdf" target="_blank" >https://mdpi-res.com/d_attachment/ijerph/ijerph-19-04462/article_deploy/ijerph-19-04462.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/ijerph19084462" target="_blank" >10.3390/ijerph19084462</a>
Alternative languages
Result language
angličtina
Original language name
Eight Days of L-Citrulline or L-Arginine Suplementation Did Not Improve 200-m and 100-m Swimming Time Trials
Original language description
The effects of L-citrulline or L-arginine supplementation on exercise performance are equivocal, and the effects on swimming performance are unclear. We aimed to assess whether 8-day supplementation with L-arginine or L-citrulline supplementation would improve 200 m and 100 m freestyle swimming time-trial performances. After the baseline trial (first visit), in a double-blind, randomised design, 15 trained/developmental (5 females) swimmers and triathletes were assigned to three groups and underwent an 8-day supplementation period, with a daily dose of either 8 gr L-arginine (Arg, n = 5) or L-citrulline (Cit, n = 5) or placebo (Pla, n = 5). On day 9, participants completed experimental trial (second visit). In each trial, after blood sampling, participants performed both 200 m and 100 m freestyle swimming time-trials, with 30 min recovery between trials. Plasma nitric oxide (NOx) and blood lactate concentrations (BLa) were collected immediately before and after 200 m and 100 m TTs, respectively. No significant difference was observed in NOx between groups (p = 0.201). There was no significant difference in 200 m (p = 0.226) and 100 m swimming time-trials (p = 0.993 ) between groups. There was a main effect of time on BLa concentration (p < 0.001 ), but no trial × group (p = 0.243) and trial × lactate × group interaction effect (p = 0.276) was present. Furthermore, 8-day either L-citrulline or L-arginine supplementation did not enhance middle (200 m) and short- distance (100 m) swimming performance in trained/developmental swimmers and triathletes. These findings do not support the use of L-citrulline or L-arginine supplementation as ergogenic aids for swimming performance.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
30308 - Nutrition, Dietetics
Result continuities
Project
—
Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
International Journal of Environmental Research and Public Health
ISSN
1660-4601
e-ISSN
1660-4601
Volume of the periodical
19
Issue of the periodical within the volume
8
Country of publishing house
CH - SWITZERLAND
Number of pages
10
Pages from-to
"Nestránkováno"
UT code for WoS article
000787430100001
EID of the result in the Scopus database
2-s2.0-85127651862