The ingestion of a multi-nutrient containing proteins, carbohydrate and creatine has been shown to enhance acute and chronic responses to resistance training, attenuating fatigue and markers of catabolism training after resistance training workouts. The purpose of this study was to investigate the acute effects of a commercially available multinutrient supplement on neuromuscular fatigue, performance, perception of effort and salivary markers of catabolism, during a bout of resistance circuit training session

Ashrafi, Nadia

Fu, Yue

Larumbe, Eneko

Miller, Jack

Naclerio, Fernando

Seijo, Marcos

Smith, Joshua

Wilkinson, Christian

Journal of the International Society of Sports Nutrition

PubMed

Marcos Seijo

Nadia Ashrafi

Joshua Smith

Christian Wilkinson

Yue Fu

Jack Miller

Eneko Larumbe

Fernando Naclerio

Springer - Publisher Connector

POSTER PRESENTATION Open Access
Acute effects of a multinutrient supplement on
performance, rate of perceived exertion and
markers of catabolism in young resistance
trainers practitioners
Marcos Seijo1, Nadia Ashrafi2, Joshua Smith1, Christian Wilkinson1, Yue Fu1, Jack Miller1, Eneko Larumbe3,
Fernando Naclerio1*
From The Eleventh International Society of Sports Nutrition (ISSN) Conference and Expo
Clearwater Beach, FL, USA. 20-21 June 2014
Background
The ingestion of a multi-nutrient containing proteins,
carbohydrate and creatine has been shown to enhance
acute and chronic responses to resistance training,
attenuating fatigue and markers of catabolism training
after resistance training workouts. The purpose of this
study was to investigate the acute effects of a commer-
cially available multinutrient supplement on neuromus-
cular fatigue, performance, perception of effort and
salivary markers of catabolism, during a bout of resis-
tance circuit training session.
Methods
Twelve recreationally resistance trained young males
(age 22±1.5 years, body weight 79.4±10.2 kg, height
181±0.07 cm), volunteered to participate in the study,
completing 2 randomised controlled circuit resistance
training sessions (CT). Immediately before and after the
workout, participants consumed 500ml of water mixed
with 60g of a multinutrient supplement (MTN) contain-
ing whey proteins, carbohydrate, creatine, HMB and
sodium bicarbonate, or maltodextrin (PL). CT involved
three rounds of 7 resistance exercises (CMJs, Bench
Press, Parallel-Squat, Upright row, Alternate Lunges,
Dead Lift, Push-press, Abdominals) followed by 1 min
rest. Participants performed 12 repetitions at 70% 1RM
in each of the exercises with no rest in between (only
the time to change from one exercise to the next).
Measurements included total kg lifted per exercise and in
the overall workout, the rate of perceived exertion (RPE)
determined at the end of each circuit, pre and post blood
lactate and markers of neuromuscular fatigue, including
Countermovement Jump (CMJ), 1RM Bench Press
(1RMBP) and the maximal velocity at 50% of 1RM Bench
Press (V50%BP). In addition, salivary markers of catabo-
lism: Free Testosterone (T) and Cortisol (C) were assessed
pre, 30min and 60min post CT. Consent to publish the
results was obtained from all participants.
Results
No significant differences were observed between the
total weight (kg) lifted for the entire CT or exercise
(P>0.05). RPE increased significantly during CT
(p<0.05), but without differences between conditions.
Lactate increased significantly from pre to post in both
conditions (p<0.05), but without differences between
them. Markers of neuromuscular fatigue (CMJ; 1RMBP
and V50%BP) significantly decreased from pre to post
but without difference between conditions. Salivary C
showed a trend, increasing from pre (7.9±6.2 nmol/L)
to 30min post (18.8±12.7 nmol/L -p=0.60-) and 60min
post (18.1±14.7 nmol/L -p=0.93-) in PL while no sig-
nificant changes or trends were observed for MTN
(10.1±7.0 Vs 16.6±13.9 and 12.8±8.5 respectively).
T showed significant higher values at 30min post
(510.1±124.9 pmol/L -p=0.005-) compared to pre
(360.4±104.6 pmol/L) and a returned to baseline levels at
60min post (402,1±88,4 pmol/L) for PL, while no changes
were observed for MTN. In addition, cortisol showed a
* Correspondence: f.j.naclerio@gre.ac.uk
1Centre for Sport Science and Human Performance, School of Science,
University of Greenwich, London, United Kingdom
Full list of author information is available at the end of the article
Seijo et al. Journal of the International Society of Sports Nutrition 2014, 11(Suppl 1):P9
http://www.jissn.com/content/11/S1/P9
© 2014 Seijo et al; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons
Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in
any medium, provided the original work is properly cited. The Creative Commons Public Domain Dedication waiver (http://
creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
strong tendency to be higher for PL compared to MTN at
60min post (18.1±14.7 Vs 12.8±8.5 nmol/L -p=0.054-). No
other differences or trends were observed.
Conclusion
Ingesting a MTN supplement immediately before and
after a circuit resistance training workout, resulted in no
impact on performance, attenuate neuromuscular fatigue
or perception of effort with respect to the ingestion of
only carbohydrate. However, some effect to attenuate
the rise in cortisol (30 min and 60 min post) and testos-
terone (30 min post) could be produced.
Authors’ details
1Centre for Sport Science and Human Performance, School of Science,
University of Greenwich, London, United Kingdom. 2Department of
Pharmaceutical, Chemical and Environmental Sciences, School of Science,
University of Greenwich, London, United Kingdom. 3Fundamentals of
Motricity and Sports Training Department, School of Sports Sciences,
European University of Madrid, Madrid, Spain.
Published: 1 December 2014
doi:10.1186/1550-2783-11-S1-P9
Cite this article as: Seijo et al.: Acute effects of a multinutrient
supplement on performance, rate of perceived exertion and markers of
catabolism in young resistance trainers practitioners. Journal of the
International Society of Sports Nutrition 2014 11(Suppl 1):P9.
Submit your next manuscript to BioMed Central
and take full advantage of: 
• Convenient online submission
• Thorough peer review
• No space constraints or color figure charges
• Immediate publication on acceptance
• Inclusion in PubMed, CAS, Scopus and Google Scholar
• Research which is freely available for redistribution
Submit your manuscript at 
www.biomedcentral.com/submit
Seijo et al. Journal of the International Society of Sports Nutrition 2014, 11(Suppl 1):P9
http://www.jissn.com/content/11/S1/P9
Page 2 of 2


Acute effects of a multinutrient supplement on performance, rate of perceived exertion and markers of catabolism in young resistance trainers practitioners

Crossref

POSTER PRESENTATION Open AccessAcute effects of a multinutrient supplement onperformance, rate of perceived exertion andmarkers of catabolism in young resistancetrainers practitionersMarcos Seijo1, Nadia Ashrafi2, Joshua Smith1, Christian Wilkinson1, Yue Fu1, Jack Miller1, Eneko Larumbe3,Fernando Naclerio1*From The Eleventh International Society of Sports Nutrition (ISSN) Conference and ExpoClearwater Beach, FL, USA. 20-21 June 2014BackgroundThe ingestion of a multi-nutrient containing proteins,carbohydrate and creatine has been shown to enhanceacute and chronic responses to resistance training,attenuating fatigue and markers of catabolism trainingafter resistance training workouts. The purpose of thisstudy was to investigate the acute effects of a commer-cially available multinutrient supplement on neuromus-cular fatigue, performance, perception of effort andsalivary markers of catabolism, during a bout of resis-tance circuit training session.MethodsTwelve recreationally resistance trained young males(age 22±1.5 years, body weight 79.4±10.2 kg, height181±0.07 cm), volunteered to participate in the study,completing 2 randomised controlled circuit resistancetraining sessions (CT). Immediately before and after theworkout, participants consumed 500ml of water mixedwith 60g of a multinutrient supplement (MTN) contain-ing whey proteins, carbohydrate, creatine, HMB andsodium bicarbonate, or maltodextrin (PL). CT involvedthree rounds of 7 resistance exercises (CMJs, BenchPress, Parallel-Squat, Upright row, Alternate Lunges,Dead Lift, Push-press, Abdominals) followed by 1 minrest. Participants performed 12 repetitions at 70% 1RMin each of the exercises with no rest in between (onlythe time to change from one exercise to the next).Measurements included total kg lifted per exercise and inthe overall workout, the rate of perceived exertion (RPE)determined at the end of each circuit, pre and post bloodlactate and markers of neuromuscular fatigue, includingCountermovement Jump (CMJ), 1RM Bench Press(1RMBP) and the maximal velocity at 50% of 1RM BenchPress (V50%BP). In addition, salivary markers of catabo-lism: Free Testosterone (T) and Cortisol (C) were assessedpre, 30min and 60min post CT. Consent to publish theresults was obtained from all participants.ResultsNo significant differences were observed between thetotal weight (kg) lifted for the entire CT or exercise(P>0.05). RPE increased significantly during CT(p<0.05), but without differences between conditions.Lactate increased significantly from pre to post in bothconditions (p<0.05), but without differences betweenthem. Markers of neuromuscular fatigue (CMJ; 1RMBPand V50%BP) significantly decreased from pre to postbut without difference between conditions. Salivary Cshowed a trend, increasing from pre (7.9±6.2 nmol/L)to 30min post (18.8±12.7 nmol/L -p=0.60-) and 60minpost (18.1±14.7 nmol/L -p=0.93-) in PL while no sig-nificant changes or trends were observed for MTN(10.1±7.0 Vs 16.6±13.9 and 12.8±8.5 respectively).T showed significant higher values at 30min post(510.1±124.9 pmol/L -p=0.005-) compared to pre(360.4±104.6 pmol/L) and a returned to baseline levels at60min post (402,1±88,4 pmol/L) for PL, while no changeswere observed for MTN. In addition, cortisol showed a* Correspondence: f.j.naclerio@gre.ac.uk1Centre for Sport Science and Human Performance, School of Science,University of Greenwich, London, United KingdomFull list of author information is available at the end of the articleSeijo et al. Journal of the International Society of Sports Nutrition 2014, 11(Suppl 1):P9http://www.jissn.com/content/11/S1/P9© 2014 Seijo et al; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative CommonsAttribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction inany medium, provided the original work is properly cited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.strong tendency to be higher for PL compared to MTN at60min post (18.1±14.7 Vs 12.8±8.5 nmol/L -p=0.054-). Noother differences or trends were observed.ConclusionIngesting a MTN supplement immediately before andafter a circuit resistance training workout, resulted in noimpact on performance, attenuate neuromuscular fatigueor perception of effort with respect to the ingestion ofonly carbohydrate. However, some effect to attenuatethe rise in cortisol (30 min and 60 min post) and testos-terone (30 min post) could be produced.Authors’ details1Centre for Sport Science and Human Performance, School of Science,University of Greenwich, London, United Kingdom. 2Department ofPharmaceutical, Chemical and Environmental Sciences, School of Science,University of Greenwich, London, United Kingdom. 3Fundamentals ofMotricity and Sports Training Department, School of Sports Sciences,European University of Madrid, Madrid, Spain.Published: 1 December 2014doi:10.1186/1550-2783-11-S1-P9Cite this article as: Seijo et al.: Acute effects of a multinutrientsupplement on performance, rate of perceived exertion and markers ofcatabolism in young resistance trainers practitioners. Journal of theInternational Society of Sports Nutrition 2014 11(Suppl 1):P9.Submit your next manuscript to BioMed Centraland take full advantage of: • Convenient online submission• Thorough peer review• No space constraints or color figure charges• Immediate publication on acceptance• Inclusion in PubMed, CAS, Scopus and Google Scholar• Research which is freely available for redistributionSubmit your manuscript at www.biomedcentral.com/submitSeijo et al. Journal of the International Society of Sports Nutrition 2014, 11(Suppl 1):P9http://www.jissn.com/content/11/S1/P9Page 2 of 2

Greenwich Academic Literature Archive

file:///data/core-remote/dit/data/Springer-OA/pdf/acc/aHR0cDovL2xpbmsuc3ByaW5nZXIuY29tLzEwLjExODYvMTU1MC0yNzgzLTExLVMxLVA5LnBkZg==.pdf

Acute effects of a multinutrient supplement on performance, rate of perceived exertion and markers of catabolism in young resistance trainers practitioners

Abstract

Similar works

Full text

Available Versions

Springer - Publisher Connector

Springer - Publisher Connector

Crossref

Greenwich Academic Literature Archive