EFFECT OF A NITRIC OXIDE PRE-WORKOUT SUPPLEMENT ON MUSCULAR ENDURANCE

Introduction: Multi-ingredient dietary supplements have been developed to increase nitric oxide (NO) production, with the expectation of improving resistance training performance. Many of these supplements contain ingredients and/ or ingredient amounts that have yet to be studied for their synergy o...

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Main Authors: Mason McIntosh, Robbie Cochrum, Ryan T. Conners, Vanessa Moreno, Michael Black, James Heimdal
Format: Article
Language:English
Published: Scientific Publishing House. NSA Press 2022-07-01
Series:Journal of Applied Sports Sciences
Subjects:
Online Access:http://journal.nsa.bg/pdf/vol1_2022/1%20EFFECT%20OF%20A%20NITRIC%20OXIDE%20PRE-WORKOUT%20SUPPLEMENT%20ON%20MUSCULAR%20ENDURANCE.pdf
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author Mason McIntosh
Robbie Cochrum
Ryan T. Conners
Vanessa Moreno
Michael Black
James Heimdal
author_facet Mason McIntosh
Robbie Cochrum
Ryan T. Conners
Vanessa Moreno
Michael Black
James Heimdal
author_sort Mason McIntosh
collection DOAJ
description Introduction: Multi-ingredient dietary supplements have been developed to increase nitric oxide (NO) production, with the expectation of improving resistance training performance. Many of these supplements contain ingredients and/ or ingredient amounts that have yet to be studied for their synergy or efficacy in increasing NO production and thus, resistance training performance. Purpose of the study: A randomized crossover design was used to investigate the effect of a citrulline malate (CM) based non-stimulant nitric oxide pre-workout supplement (NOPWS) blend or placebo on Young Men’s Christian Association (YMCA) bench press performance. Applied Methodology: Thirty-minutes were provided between NOPWS or placebo ingestion and YMCA bench press assessment. Pre/post heart rate was taken following each condition. Two- and one-way repeated measures ANOVAs (α = 0.05) were run to determine the effect of each condition on heart rate (HR) and the number of repetitions performed (respectively) during the bench press test. Achieved major results: There was a significant two-way interaction between the treatment and time for HR, F(1, 20) = 6.82, p = .017. Resting HR was significantly higher during the supplement session (M = 74.67, SE = 2.54 bpm) than during the placebo session (M = 69.14, SE = 2.31 bpm), F(1, 20) = 8.19, p = .010, ηp 2 = .290. No significant difference was found between conditions for number of repetitions performed. Leads: A specific CM-containing NOPWS blend had no significant effect on a standardized assessment of upper body muscular endurance. Practical implications: These findings highlight the need for consideration of the minimum effective dosage and assimilation timing of each respective ingredient when developing or researching pre-workout supplement blends. Originality/Value: This is the first known research to study the effectiveness of this specific blend of ingredients on resistance training performance. Thus, this study provides necessary foundational knowledge for future research in this area.
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spelling doaj.art-86d690ecc39c4b47b1986c5586c322792023-01-03T07:32:45ZengScientific Publishing House. NSA PressJournal of Applied Sports Sciences2534-95972535-01452022-07-011202231510.37393/JASS.2022.01.1EFFECT OF A NITRIC OXIDE PRE-WORKOUT SUPPLEMENT ON MUSCULAR ENDURANCEMason McIntosh0Robbie Cochrum1https://orcid.org/0000-0003-0046-6401Ryan T. Conners2https://orcid.org/0000-0002-4755-361XVanessa Moreno3https://orcid.org/0000-0002-0212-0394Michael Black4James Heimdal5https://orcid.org/0000-0003-0134-3665Tennessee State University, Department of HPSS, Nashville, TN, USATennessee State University, Department of HPSS, Nashville, TN, USAUniversity of Alabama in Huntsville, Department of Kinesiology, Huntsville, AL 35899, USATennessee State University, Department of HPSS, Nashville, TN, USATennessee State University, Department of HPSS, Nashville, TN, USATennessee State University, Department of HPSS, Nashville, TN, USAIntroduction: Multi-ingredient dietary supplements have been developed to increase nitric oxide (NO) production, with the expectation of improving resistance training performance. Many of these supplements contain ingredients and/ or ingredient amounts that have yet to be studied for their synergy or efficacy in increasing NO production and thus, resistance training performance. Purpose of the study: A randomized crossover design was used to investigate the effect of a citrulline malate (CM) based non-stimulant nitric oxide pre-workout supplement (NOPWS) blend or placebo on Young Men’s Christian Association (YMCA) bench press performance. Applied Methodology: Thirty-minutes were provided between NOPWS or placebo ingestion and YMCA bench press assessment. Pre/post heart rate was taken following each condition. Two- and one-way repeated measures ANOVAs (α = 0.05) were run to determine the effect of each condition on heart rate (HR) and the number of repetitions performed (respectively) during the bench press test. Achieved major results: There was a significant two-way interaction between the treatment and time for HR, F(1, 20) = 6.82, p = .017. Resting HR was significantly higher during the supplement session (M = 74.67, SE = 2.54 bpm) than during the placebo session (M = 69.14, SE = 2.31 bpm), F(1, 20) = 8.19, p = .010, ηp 2 = .290. No significant difference was found between conditions for number of repetitions performed. Leads: A specific CM-containing NOPWS blend had no significant effect on a standardized assessment of upper body muscular endurance. Practical implications: These findings highlight the need for consideration of the minimum effective dosage and assimilation timing of each respective ingredient when developing or researching pre-workout supplement blends. Originality/Value: This is the first known research to study the effectiveness of this specific blend of ingredients on resistance training performance. Thus, this study provides necessary foundational knowledge for future research in this area.http://journal.nsa.bg/pdf/vol1_2022/1%20EFFECT%20OF%20A%20NITRIC%20OXIDE%20PRE-WORKOUT%20SUPPLEMENT%20ON%20MUSCULAR%20ENDURANCE.pdfnitric oxideymca bench presssupplementcitrulline malatepre-workout
spellingShingle Mason McIntosh
Robbie Cochrum
Ryan T. Conners
Vanessa Moreno
Michael Black
James Heimdal
EFFECT OF A NITRIC OXIDE PRE-WORKOUT SUPPLEMENT ON MUSCULAR ENDURANCE
Journal of Applied Sports Sciences
nitric oxide
ymca bench press
supplement
citrulline malate
pre-workout
title EFFECT OF A NITRIC OXIDE PRE-WORKOUT SUPPLEMENT ON MUSCULAR ENDURANCE
title_full EFFECT OF A NITRIC OXIDE PRE-WORKOUT SUPPLEMENT ON MUSCULAR ENDURANCE
title_fullStr EFFECT OF A NITRIC OXIDE PRE-WORKOUT SUPPLEMENT ON MUSCULAR ENDURANCE
title_full_unstemmed EFFECT OF A NITRIC OXIDE PRE-WORKOUT SUPPLEMENT ON MUSCULAR ENDURANCE
title_short EFFECT OF A NITRIC OXIDE PRE-WORKOUT SUPPLEMENT ON MUSCULAR ENDURANCE
title_sort effect of a nitric oxide pre workout supplement on muscular endurance
topic nitric oxide
ymca bench press
supplement
citrulline malate
pre-workout
url http://journal.nsa.bg/pdf/vol1_2022/1%20EFFECT%20OF%20A%20NITRIC%20OXIDE%20PRE-WORKOUT%20SUPPLEMENT%20ON%20MUSCULAR%20ENDURANCE.pdf
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AT vanessamoreno effectofanitricoxidepreworkoutsupplementonmuscularendurance
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