The Effects of High Doses of Caffeine on Maximal Strength and Muscular Endurance in Athletes Habituated to Caffeine.
1RM test
bench press
ergogenic substances
resistance exercise
time under tension
upper limb
Journal
Nutrients
ISSN: 2072-6643
Titre abrégé: Nutrients
Pays: Switzerland
ID NLM: 101521595
Informations de publication
Date de publication:
15 Aug 2019
15 Aug 2019
Historique:
received:
23
07
2019
revised:
08
08
2019
accepted:
13
08
2019
entrez:
25
8
2019
pubmed:
25
8
2019
medline:
11
2
2020
Statut:
epublish
Résumé
The main goal of this study was to assess the acute effects of the intake of 9 and 11 mg/kg/ body mass (b.m.) of caffeine (CAF) on maximal strength and muscle endurance in athletes habituated to caffeine. The study included 16 healthy strength-trained male athletes (age = 24.2 ± 4.2 years, body mass = 79.5 ± 8.5 kg, body mass index (BMI) = 24.5 ± 1.9, bench press 1RM = 118.3 ± 14.5 kg). All participants were habitual caffeine consumers (4.9 ± 1.1 mg/kg/b.m., 411 ± 136 mg of caffeine per day). This study had a randomized, crossover, double-blind design, where each participant performed three experimental sessions after ingesting either a placebo (PLAC) or 9 mg/kg/b.m. (CAF-9) and 11 mg/kg/b.m. (CAF-11) of caffeine. In each experimental session, participants underwent a 1RM strength test and a muscle endurance test in the bench press exercise at 50% 1RM while power output and bar velocity were measured in each test. A one-way repeated measures ANOVA revealed a significant difference between PLAC, CAF-9, and CAF-11 groups in peak velocity (PV) ( The results of the present study indicate that high acute doses of CAF (9 and 11 mg/kg/b.m.) did not improve muscle strength nor muscle endurance in athletes habituated to this substance.
Sections du résumé
BACKGROUND
BACKGROUND
The main goal of this study was to assess the acute effects of the intake of 9 and 11 mg/kg/ body mass (b.m.) of caffeine (CAF) on maximal strength and muscle endurance in athletes habituated to caffeine.
METHODS
METHODS
The study included 16 healthy strength-trained male athletes (age = 24.2 ± 4.2 years, body mass = 79.5 ± 8.5 kg, body mass index (BMI) = 24.5 ± 1.9, bench press 1RM = 118.3 ± 14.5 kg). All participants were habitual caffeine consumers (4.9 ± 1.1 mg/kg/b.m., 411 ± 136 mg of caffeine per day). This study had a randomized, crossover, double-blind design, where each participant performed three experimental sessions after ingesting either a placebo (PLAC) or 9 mg/kg/b.m. (CAF-9) and 11 mg/kg/b.m. (CAF-11) of caffeine. In each experimental session, participants underwent a 1RM strength test and a muscle endurance test in the bench press exercise at 50% 1RM while power output and bar velocity were measured in each test.
RESULTS
RESULTS
A one-way repeated measures ANOVA revealed a significant difference between PLAC, CAF-9, and CAF-11 groups in peak velocity (PV) (
CONCLUSION
CONCLUSIONS
The results of the present study indicate that high acute doses of CAF (9 and 11 mg/kg/b.m.) did not improve muscle strength nor muscle endurance in athletes habituated to this substance.
Identifiants
pubmed: 31443220
pii: nu11081912
doi: 10.3390/nu11081912
pmc: PMC6722777
pii:
doi:
Substances chimiques
Coffee
0
Caffeine
3G6A5W338E
Types de publication
Journal Article
Randomized Controlled Trial
Langues
eng
Sous-ensembles de citation
IM
Commentaires et corrections
Type : ErratumIn
Références
J Appl Physiol (1985). 2017 Jul 1;123(1):213-220
pubmed: 28495846
Med Sci Sports Exerc. 2013 Nov;45(11):2184-92
pubmed: 23669879
J Hum Kinet. 2018 Jun 13;62:241-250
pubmed: 29922395
Sports Biomech. 2018 Mar;17(1):117-130
pubmed: 28632056
Nutrients. 2019 Jan 29;11(2):
pubmed: 30699902
J Neurosci. 1999 May 15;19(10):4011-22
pubmed: 10234030
J Sports Sci Med. 2019 Jun 01;18(2):191-197
pubmed: 31191087
Nutrients. 2019 Jun 27;11(7):
pubmed: 31252655
Psychopharmacology (Berl). 2006 May;185(4):514-23
pubmed: 16541243
Sci Rep. 2015 May 13;5:10209
pubmed: 25969895
Eur J Appl Physiol Occup Physiol. 1991;62(6):424-9
pubmed: 1893906
Psychopharmacology (Berl). 2016 May;233(10):1963-79
pubmed: 26786412
J Sports Sci. 2011 Mar;29(5):509-15
pubmed: 21279864
J Strength Cond Res. 2008 May;22(3):978-86
pubmed: 18438212
J Strength Cond Res. 2012 Jul;26(7):1984-2005
pubmed: 22531613
Pharmacopsychoecologia. 1994;7(2):201-213
pubmed: 25821357
J Physiol. 2012 Jan 15;590(2):351-62
pubmed: 22106173
J Sports Sci. 2017 Oct;35(19):1920-1927
pubmed: 27762662
J Strength Cond Res. 2011 Jan;25(1):178-85
pubmed: 21157384
Pharmacol Rev. 1999 Mar;51(1):83-133
pubmed: 10049999
Nutrients. 2018 Sep 21;10(10):
pubmed: 30248915
Am J Physiol Regul Integr Comp Physiol. 2003 Feb;284(2):R399-404
pubmed: 12399249
Br J Nutr. 2014 Nov 14;112(9):1494-502
pubmed: 25212095
Int J Sports Physiol Perform. 2007 Sep;2(3):250-9
pubmed: 19168925
Nutr Diet. 2018 Apr;75(2):219-225
pubmed: 29280547
Neuropsychopharmacology. 2003 Sep;28(9):1694-702
pubmed: 12825092
Front Physiol. 2012 May 18;3:142
pubmed: 22629249
J Int Soc Sports Nutr. 2019 Feb 18;16(1):8
pubmed: 30777094
Br J Sports Med. 2020 Jun;54(11):681-688
pubmed: 30926628
Appl Physiol Nutr Metab. 2011 Aug;36(4):555-61
pubmed: 21854160
Am J Clin Nutr. 2007 Jul;86(1):240-4
pubmed: 17616786
J Hum Kinet. 2019 Aug 21;68:37-48
pubmed: 31531131
Int J Sports Med. 1995 May;16(4):225-30
pubmed: 7657415
Appl Physiol Nutr Metab. 2008 Dec;33(6):1319-34
pubmed: 19088794
Muscle Nerve. 2014 Oct;50(4):523-7
pubmed: 24435882
PLoS One. 2019 Jan 23;14(1):e0210275
pubmed: 30673725
Sports Med. 2018 Jan;48(1):7-16
pubmed: 28853006
Nutrients. 2019 Mar 29;11(4):
pubmed: 30934886
J Int Soc Sports Nutr. 2010 May 14;7:18
pubmed: 20470411
Int J Sport Nutr Exerc Metab. 2008 Dec;18(6):639-52
pubmed: 19164833
Int J Sport Nutr Exerc Metab. 2011 Oct;21(5):357-64
pubmed: 21799214
Eur J Appl Physiol. 2008 Jan;102(2):127-32
pubmed: 17851681
Int J Sports Physiol Perform. 2019 Apr 1;14(4):540-543
pubmed: 30300064
J Strength Cond Res. 2006 Aug;20(3):506-10
pubmed: 16937961
Int J Sport Nutr Exerc Metab. 2006 Oct;16(5):545-58
pubmed: 17240785
Eur J Appl Physiol. 2014 Dec;114(12):2529-37
pubmed: 25115507
Eur J Sport Sci. 2017 Sep;17(8):1029-1036
pubmed: 28537195
Eur J Sport Sci. 2016 Nov;16(8):1079-86
pubmed: 26863885