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(page number not for citation purposes)
Journal of the International Society
of Sports Nutrition
The effects of an acute dose of Rhodiola rosea on exercise
performance and cognitive function
Eric Noreen*, James Buckley and Stephanie Lewis
Address: The Department of Health Sciences, Gettysburg College, Gettysburg, PA 17325, USA
Email: Eric Noreen* - firstname.lastname@example.org
* Corresponding author
The purpose of this study was to determine the effects of
an acute oral dose of 3 mg/kg of Rhodiola rosea (R. rosea)
on endurance exercise performance, mood, and cognitive
A total of 15 recreationally active college women (21.3 ±
0.09 y, 56.1 ± 6.3 kg; mean ± SD) participated in this
study. 2–7 d after a familiarization trial subjects ingested
in a double blind, random crossover manner, either R.
rosea or a carbohydrate placebo 1 h prior to testing. Exer-
cise testing consisted of a 10 minute warm-up, standard-
ized to 80% of the average watts produced during the
familiarization trial, followed by a 6 mile simulated
indoor time trial on a Velotron electronic bicycle ergom-
eter. Every 5 min during the time trial, subjects rated their
level of perceived exertion using a BORG 10 pt scale. A
blood sample was taken pre warm-up, 2 minutes post
warm-up, and 2 minutes following completion of the
time trial, and was analyzed for lactate concentration.
Subjects also completed a Profile of Mood States (POMS)
questionnaire and a Stroop's color test pre-warm up and
following the completion of the time trial. Subjects
returned to the lab 2–7 d later to repeat the testing with
the other condition.
A 3 mg/kg acute does of R. rosea resulted in a shorter time
to completion of the 6 mile time trial course (R. rosea
1544.7 ± 155.2 s, Placebo 1569.5 ± 179.4 s; mean ± SD; p
= 0.06) as well as a lower average heart rate during the
standardized warm up (R. rosea 138.6 ± 13.3 bpm, Pla-
cebo 143.7 ± 12.4 bpm; mean ± SD; p = 0.001). There
were no significant differences between treatment condi-
tions for rating of perceived exertion during the time trial.
Both treatments resulted in a significant increase in the
POMS fatigue score following exercise (p = 0.001), as well
as a significant improvement following exercise for the
Stroop's test of incongruent words (p = 0.001). No other
significant differences between treatments were observed.
Acute Rhodiola rosea ingestion decreases the heart rate
response to sub-maximal exercise, and appears to improve
endurance exercise performance.
from 2009 International Society of Sports Nutrition Conference and Expo
New Orleans, LA, USA. 14–15 June 2009
Published: 31 July 2009
Journal of the International Society of Sports Nutrition 2009, 6(Suppl 1):P14 doi:10.1186/1550-2783-6-S1-P14
<supplement> <title> <p>Proceedings of the Sixth International Society of Sports Nutrition (ISSN) Conference and Expo</p> </title> <editor>Chad Kerksick and Jose Antonio</editor> <note>Meeting abstracts – A single PDF containing all abstracts in this Supplement is available <a href="http://www.biomedcentral.com/content/files/pdf/1550-2783-6-S1-full.pdf">here</a>.</note> <url>http://www.biomedcentral.com/content/pdf/1550-2783-6-S1-info.pdf</url> </supplement>
This abstract is available from: http://www.jissn.com/content/6/S1/P14
© 2009 Noreen et al; licensee BioMed Central Ltd.