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Fu T, Liu H, Shi C, Zhao H, Liu F, Xia Y. Global hotspots and trends of nutritional supplements in sport and exercise from 2000 to 2024: a bibliometric analysis. JOURNAL OF HEALTH, POPULATION, AND NUTRITION 2024; 43:146. [PMID: 39267150 PMCID: PMC11397053 DOI: 10.1186/s41043-024-00638-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2024] [Accepted: 09/04/2024] [Indexed: 09/14/2024]
Abstract
BACKGROUND Nutritional supplements for sports and exercise (NSSE) can facilitate the exogenous replenishment of the body. This study provides the first extensive overview of NSSE research through bibliometric and visual analyses. METHODS We searched the Web of Science Core Collection database for literature related to "NSSE" from 1st January 2000 to 8th March 2024. A total of 1744 articles were included. CiteSpace, VOSviewer, and Bibliometrix R package software were used to analyze the data. RESULTS Research in the NSSE can be divided into steady growth, exponential growth, fluctuating stage, and surge stages. The United States is the most active country in this field. In recent years, the leading countries have been Croatia, Colombia, Slovenia, Chile, Egypt, China, and Thailand. The Australian Institute of Sports is the top research institution in terms of number of publications. Burke, LM from Australia published the most articles. Research in this area has primarily been published in Nutrients in Switzerland. The study population mainly consisted of men, and postmenopausal women were the main focus of the female group. Coronary heart and cardiovascular diseases continue to dominate research. CONCLUSION Research on the NSSE is developing rapidly, with an annual growth trend. Insulin resistance, sports nutrition, inflammation, alpha-linolenic acid, limb strength performance, female sex, and gut microbiota are the focus of the current research and trends for future research. Future research should focus on improving the scientific training system for athletes and quality of training and life for the general public.
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Affiliation(s)
- Te Fu
- College of Physical Education, Henan University, Kaifeng, Henan, 475001, China
| | - Haitao Liu
- College of Physical Education, Henan University, Kaifeng, Henan, 475001, China.
- Research Center of Sports Reform and Development, Henan University, Kaifeng, Henan, 475001, China.
- Institute of Physical Fitness and Health, Henan University, Kaifeng, Henan, 475001, China.
| | - Chaofan Shi
- College of Physical Education, Henan University, Kaifeng, Henan, 475001, China
| | - Haichang Zhao
- College of Physical Education, Henan University, Kaifeng, Henan, 475001, China
| | - Feiyue Liu
- College of Physical Education, Henan University, Kaifeng, Henan, 475001, China
| | - Yingjian Xia
- College of Physical Education, Henan University, Kaifeng, Henan, 475001, China
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2
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Fambrini DL, Campos Neto ELD, Ferreira Dos Santos C. Acute Effect of Oral Adenosine Triphosphate (ATP) Supplementation on Muscular Performance in Trained Adults. JOURNAL OF THE AMERICAN NUTRITION ASSOCIATION 2024; 43:412-420. [PMID: 38193939 DOI: 10.1080/27697061.2023.2301400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 12/27/2023] [Indexed: 01/10/2024]
Abstract
INTRODUCTION Adenosine Triphosphate is a molecule with the function of generating energy, where high levels are directly related to cellular and muscular health. Oral supplementation appears as a possibility to guarantee such levels, and is normally consumed in capsules, which can be acute or chronic. OBJECTIVES To verify the influence of a dose of ATP on muscular performance in adults. METHODS This is an acute, crossover, randomized, double-blind, placebo-controlled intervention study. 18 trained men were recruited, with an average age of 27.95 years. Two visits were made to the laboratory, where each of the protocols consisted of randomized supplementation of 400 mg of Peak ATP® or placebo, and 30 min later, five series were performed, where the first consisted of five repetitions and the following four of ten repetitions at 60° per second in knee extension and flexion on a Biodex® 4.0 isokinetic dynamometer, where the volunteers' muscle strength and resistance to fatigue were measured. For data analysis, data normality was assessed using Shapiro Wilk, the ANOVA repeated measures test with Bonferroni post hoc. To identify the size of the effect, the Cohen test was performed, and the statistical package used was SPSS 25 with an applied significance of p < 0.05. RESULTS Acute supplementation was unable to achieve significant improvements in muscle strength indicators. The supplement delays drops in strength as the exercise progresses in knee extension compared to the placebo. CONCLUSIONS An acute dose of 400 mg of ATP did not improve the volunteers' muscle strength indicators, but it was able to reduce fatigue levels as the exercise progressed, enabling greater performance for longer.
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Affiliation(s)
- Danilo Luiz Fambrini
- Center for Health Sciences, State University of Northern Paraná, Jacarezinho, Brazil
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3
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Cherian P, Bergfeld WF, Belsito DV, Hill RA, Klaassen CD, Liebler DC, Marks JG, Shank RC, Slaga TJ, Snyder PW, Fiume M, Heldreth B. Safety Assessment of Adenosine as Used in Cosmetics. Int J Toxicol 2024; 43:50S-63S. [PMID: 38146080 DOI: 10.1177/10915818231221790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2023]
Abstract
The Expert Panel for Cosmetic Ingredient Safety (Panel) assessed the safety of Adenosine, Adenosine Phosphate, Adenosine Triphosphate, Disodium Adenosine Phosphate, and Disodium Adenosine Triphosphate. These ingredients are reported to function in cosmetics as skin-conditioning agents - miscellaneous. The Panel considered the available data and concluded that the five adenosine ingredients reviewed in this report are safe in cosmetics in the present practices of use and concentration described in this safety assessment.
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Affiliation(s)
- Priya Cherian
- Cosmetic Ingredient Review Senior Scientific Analyst/Writer
| | | | | | - Ronald A Hill
- Expert Panel for Cosmetic Ingredient Safety Former Member
| | | | | | - James G Marks
- Expert Panel for Cosmetic Ingredient Safety Former Member
| | - Ronald C Shank
- Expert Panel for Cosmetic Ingredient Safety Former Member
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4
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Suwara J, Radzikowska-Cieciura E, Chworos A, Pawlowska R. The ATP-dependent Pathways and Human Diseases. Curr Med Chem 2023; 30:1232-1255. [PMID: 35319356 DOI: 10.2174/0929867329666220322104552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Revised: 12/31/2021] [Accepted: 01/04/2022] [Indexed: 11/22/2022]
Abstract
Adenosine triphosphate (ATP) is one of the most important molecules of life, present both inside the cells and extracellularly. It is an essential building block for nucleic acids biosynthesis and crucial intracellular energy storage. However, one of the most interesting functions of ATP is the role of a signaling molecule. Numerous studies indicate the involvement of ATP-dependent pathways in maintaining the proper functioning of individual tissues and organs. Herein, the latest data indicating the ATP function in the network of intra- and extracellular signaling pathways including purinergic signaling, MAP kinase pathway, mTOR and calcium signaling are collected. The main ATP-dependent processes maintaining the proper functioning of the nervous, cardiovascular and immune systems, as well as skin and bones, are summarized. The disturbances in the ATP amount, its cellular localization, or interaction with target elements may induce pathological changes in signaling pathways leading to the development of serious diseases. The impact of an ATP imbalance on the development of dangerous health dysfunctions such as neurodegeneration diseases, cardiovascular diseases (CVDs), diabetes mellitus, obesity, cancers and immune pathogenesis are discussed here.
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Affiliation(s)
- Justyna Suwara
- Department of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363, Lodz, Poland
| | - Ewa Radzikowska-Cieciura
- Department of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363, Lodz, Poland
| | - Arkadiusz Chworos
- Department of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363, Lodz, Poland
| | - Roza Pawlowska
- Department of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363, Lodz, Poland
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5
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Dos Santos Nunes de Moura HP, Jäger R, Purpura M, Rathmacher JA, Fuller JC, Rossi FE. Dose Response of Acute ATP Supplementation on Strength Training Performance. Front Sports Act Living 2021; 3:780459. [PMID: 34957398 PMCID: PMC8692774 DOI: 10.3389/fspor.2021.780459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 11/11/2021] [Indexed: 11/13/2022] Open
Abstract
Background: Chronic oral ATP supplementation benefits cardiovascular health, muscular performance, body composition, and recovery while attenuating muscle breakdown and fatigue. A single 400 mg dose of oral ATP supplementation improved lower body resistance training performance and energy expenditure in recreational resistance trained males, however, the minimal effective dose is currently unknown. Materials and Methods: Twenty recreationally trained men (age 28.6 ± 1.0 years, body mass 81.2 ± 2.0 kg, height 175.2 ± 1.4 cm, 1RM 141.5 ± 5.0 kg) consumed a single dose of either 400 mg, 200 mg, or 100 mg ATP (PEAK ATP®, TSI USA LLC, Missoula, MT, USA) or a placebo in a randomized, placebo-controlled crossover design, separated by a one week wash out between treatments. After warm-up, participants performed 4 sets of half-squats using free-weights until movement failure separated by 2 mins of rest between sets. Results: In comparison to placebo, 400 mg ATP significantly increased the number of set 1 repetitions (+13%, p = 0.04), and numerically increased total repetitions (+7%, p = 0.19) and total weight lifted (+6%, p = 0.22). 200 mg ATP numerically increased set 1 repetitions (+4% p = 0.47), while 100 mg ATP showed no improvements over placebo. 100 mg ATP (−4%, p < 0.05) and 400 mg ATP (−4%, p = 0.11) decreased the perceived rate of exertion compared to placebo. Conclusions: In this study, the effective minimal dose of acute oral ATP supplementation during resistance exercise to increase performance was determined to be 400 mg, while as little as 100 mg showed improvements in perceived exertion.
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Affiliation(s)
- Helton Pereira Dos Santos Nunes de Moura
- Immunometabolism of Skeletal Muscle and Exercise Research Group, Department of Physical Education and Postgraduate Program in Science and Health, Federal University of Piauí (UFPI), Teresina, Brazil
| | - Ralf Jäger
- Increnovo LLC, Milwaukee, WI, United States
| | | | - John A Rathmacher
- MTI BioTech, Inc., Ames, IA, United States.,Department of Animal Science, Iowa State University, Ames, IA, United States
| | | | - Fabrício E Rossi
- Immunometabolism of Skeletal Muscle and Exercise Research Group, Department of Physical Education and Postgraduate Program in Science and Health, Federal University of Piauí (UFPI), Teresina, Brazil
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6
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Health and ergogenic potential of oral adenosine-5′-triphosphate (ATP) supplementation. J Funct Foods 2021. [DOI: 10.1016/j.jff.2021.104357] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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7
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Espada L, Dakhovnik A, Chaudhari P, Martirosyan A, Miek L, Poliezhaieva T, Schaub Y, Nair A, Döring N, Rahnis N, Werz O, Koeberle A, Kirkpatrick J, Ori A, Ermolaeva MA. Loss of metabolic plasticity underlies metformin toxicity in aged Caenorhabditis elegans. Nat Metab 2020; 2:1316-1331. [PMID: 33139960 DOI: 10.1038/s42255-020-00307-1] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 09/29/2020] [Indexed: 12/12/2022]
Abstract
Current clinical trials are testing the life-extending benefits of the diabetes drug metformin in healthy individuals without diabetes. However, the metabolic response of a non-diabetic cohort to metformin treatment has not been studied. Here, we show in C. elegans and human primary cells that metformin shortens lifespan when provided in late life, contrary to its positive effects in young organisms. We find that metformin exacerbates ageing-associated mitochondrial dysfunction, causing respiratory failure. Age-related failure to induce glycolysis and activate the dietary-restriction-like mobilization of lipid reserves in response to metformin result in lethal ATP exhaustion in metformin-treated aged worms and late-passage human cells, which can be rescued by ectopic stabilization of cellular ATP content. Metformin toxicity is alleviated in worms harbouring disruptions in insulin-receptor signalling, which show enhanced resilience to mitochondrial distortions at old age. Together, our data show that metformin induces deleterious changes of conserved metabolic pathways in late life, which could bring into question its benefits for older individuals without diabetes.
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Affiliation(s)
- Lilia Espada
- Leibniz Institute on Aging - Fritz Lipmann Institute (FLI), Jena, Germany
| | | | - Prerana Chaudhari
- Leibniz Institute on Aging - Fritz Lipmann Institute (FLI), Jena, Germany
| | - Asya Martirosyan
- Leibniz Institute on Aging - Fritz Lipmann Institute (FLI), Jena, Germany
| | - Laura Miek
- Institute of Pharmacy, Friedrich Schiller University Jena, Jena, Germany
| | | | - Yvonne Schaub
- Leibniz Institute on Aging - Fritz Lipmann Institute (FLI), Jena, Germany
| | - Ashish Nair
- Leibniz Institute on Aging - Fritz Lipmann Institute (FLI), Jena, Germany
| | - Nadia Döring
- Leibniz Institute on Aging - Fritz Lipmann Institute (FLI), Jena, Germany
| | - Norman Rahnis
- Leibniz Institute on Aging - Fritz Lipmann Institute (FLI), Jena, Germany
| | - Oliver Werz
- Institute of Pharmacy, Friedrich Schiller University Jena, Jena, Germany
| | - Andreas Koeberle
- Institute of Pharmacy, Friedrich Schiller University Jena, Jena, Germany
- Michael Popp Research Institute, University of Innsbruck, Innsbruck, Austria
| | | | - Alessandro Ori
- Leibniz Institute on Aging - Fritz Lipmann Institute (FLI), Jena, Germany
| | - Maria A Ermolaeva
- Leibniz Institute on Aging - Fritz Lipmann Institute (FLI), Jena, Germany.
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8
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Cruz AM, Beall C. Extracellular ATP Increases Glucose Metabolism in Skeletal Muscle Cells in a P2 Receptor Dependent Manner but Does Not Contribute to Palmitate-Induced Insulin Resistance. Front Physiol 2020; 11:567378. [PMID: 33101053 PMCID: PMC7545032 DOI: 10.3389/fphys.2020.567378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 08/26/2020] [Indexed: 11/24/2022] Open
Abstract
Saturated fatty acids such as palmitate contribute to the development of Type 2 Diabetes by reducing insulin sensitivity, increasing inflammation and potentially contributing to anabolic resistance. We hypothesized that palmitate-induced ATP release from skeletal muscle cells may increase inflammatory cytokine production and contribute to insulin/anabolic resistance in an autocrine/paracrine manner. In C2C12 myotubes differentiated at physiological glucose concentrations (5.5 mM), palmitate treatment (16 h) at concentrations greater than 250 μM increased release of ATP and inflammatory cytokines IL-6 and MIF, significantly blunted insulin and amino acid-induced signaling and reduced mitochondrial function. In contrast to our hypothesis, degradation of extracellular ATP using apyrase, did not alter palmitate-induced insulin resistance nor alter release of cytokines. Moreover, treatment with ATPγS (16 h), a non-hydrolysable ATP analog, in the absence of palmitate, did not diminish insulin sensitivity. Acute treatment with ATPγS produced insulin mimetic roles; increased phosphorylation of PKB (aka AKT), S6K1 and ERK and enhanced GLUT4-mediated glucose uptake in the absence of exogenous insulin. The increases in PKB and S6K1 phosphorylation were completely prevented by pre-incubation with broad spectrum purinergic receptor (P2R) blockers PPADs and suramin but not by P2 × 4 or P2 × 7 blockers 5-BDBD or A-438079, respectively. Moreover, ATPγS increased IL-6 yet decreased MIF release, similar to the cytokine profile produced by exercise. Acute and chronic treatment with ATPγS increased glycolytic rate in a manner that was differentially inhibited by PPADs and suramin, suggesting heterogeneous P2R activation in the control of cellular metabolism. In summary, our data suggest that the palmitate-induced increase in ATP does not contribute to insulin/anabolic resistance in a cell autonomous manner.
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Affiliation(s)
- Ana Miguel Cruz
- Institute of Biomedical and Clinical Science, University of Exeter Medical School, Exeter, United Kingdom
| | - Craig Beall
- Institute of Biomedical and Clinical Science, University of Exeter Medical School, Exeter, United Kingdom
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9
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Jäger R, Purpura M, Fuller JC. Subchronic (90-Day) repeated dose toxicity study of disodium adenosine-5'-triphosphate in rats. Regul Toxicol Pharmacol 2020; 116:104760. [PMID: 32771599 DOI: 10.1016/j.yrtph.2020.104760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 07/23/2020] [Accepted: 08/03/2020] [Indexed: 11/16/2022]
Abstract
Adenosine-5'-triphosphate (ATP) is the primary source of energy for cells and oral supplementation with ATP offers numerous different health benefits, including the regulation of blood flow and muscle contraction. In this study, ATP, disodium salt, was administered by gavage to rats for 90 consecutive days at doses of 0 (control), 500, 1000, and 2000 mg kg BW-1·d-1 (n = 10 per sex/group). Subchronic administration of ATP was well tolerated at all dose levels. Body weights and feed consumption body weight gains were similar between ATP-treated and control rats. Minor differences were seen in hematology and blood chemistry; however, these changes were not dose related and therefore not of biological or toxicological significance. Only one difference was observed in absolute organ weights, females of the high dose had increased kidney and increased relative kidney and liver weights; however, these differences were not seen in males nor appeared to be dose related. No biological or toxicological significant differences were observed in thyroid function or urine analysis. The incidence of histopathological lesions was low and similar between treated and control groups. Based upon these findings, the no-observed-adverse-effect level (NOAEL) was determined to be ≥ 2000 mg kg BW-1·d-1, which was the highest dose tested.
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Affiliation(s)
- Ralf Jäger
- Increnovo, LLC, 2138 E Lafayette Pl, Milwaukee, WI, 53202, USA.
| | - Martin Purpura
- Increnovo, LLC, 2138 E Lafayette Pl, Milwaukee, WI, 53202, USA.
| | - John C Fuller
- Metabolic Technologies, LLC, 135 W Main St, Suite B, Missoula, MT, 59802, USA.
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10
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Freitas MC, Cholewa JM, Gerosa-Neto J, Gonçalves DC, Caperuto EC, Lira FS, Rossi FE. A Single Dose of Oral ATP Supplementation Improves Performance and Physiological Response During Lower Body Resistance Exercise in Recreational Resistance-Trained Males. J Strength Cond Res 2020; 33:3345-3352. [PMID: 29045315 DOI: 10.1519/jsc.0000000000002198] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Freitas, MC, Cholewa, JM, Gerosa-Neto, J, Gonçalves, DC, Caperuto, EC, Lira, FS, and Rossi, FE. A single dose of oral ATP supplementation improves performance and physiological response during lower body resistance exercise in recreational resistance-trained males. J Strength Cond Res 33(12): 3345-3352, 2019-The aim of this study was to investigate the acute effect of adenosine-5'-triphosphate (ATP) supplementation on performance and physiological responses during resistance exercise in recreationally resistance-trained males. Eleven men (age = 27.5 ± 5.5 years, mass = 83.4 ± 9.8 kg, height = 182 ± 0.04 cm) completed 2 randomized, double-blind trials: ATP supplement condition (ATP = 400 mg) or a placebo condition. Thirty minutes after supplement consumption, subjects performed 4 sets of half-squats until momentary muscular failure at 80% of the 1 repetition maximum with 2 minutes of recovery between sets. The total number of repetitions, blood pressure, heart rate, blood lactate, and oxygen consumption were evaluated. The total weight lifted were higher for the ATP condition compared with placebo (Placebo = 3,995.7 ± 1,137.8, ATP = 4,967.4 ± 1,497.9 kg; p = 0.005). Heart rate was higher at set-4 for ATP compared with placebo (p < 0.001) and oxygen consumption during exercise was greater for ATP (p = 0.021). There were no differences between conditions for lactate and blood pressure. In summary, a single oral dose of ATP supplementation improved lower-body resistance training performance and energy expenditure in recreational resistance-trained males.
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Affiliation(s)
- Marcelo C Freitas
- Exercise and Immunometabolism Research Group, Department of Physical Education, São Paulo State University (UNESP), Presidente Prudente, SP, Brazil
| | - Jason M Cholewa
- Department of Kinesiology, Coastal Carolina University, Conway, South Carolina
| | - Jose Gerosa-Neto
- Exercise and Immunometabolism Research Group, Department of Physical Education, São Paulo State University (UNESP), Presidente Prudente, SP, Brazil
| | - Daniela C Gonçalves
- Biosciences Department, Federal University of São Paulo, UNIFESP, Santos, SP, Brazil
| | - Erico C Caperuto
- Human Movement Laboratory, University São Judas Tadeu, São Paulo, SP, Brazil
| | - Fábio S Lira
- Exercise and Immunometabolism Research Group, Department of Physical Education, São Paulo State University (UNESP), Presidente Prudente, SP, Brazil
| | - Fabrício E Rossi
- Immunometabolism of Skeletal Muscle and Exercise Research Group, Department of Physical Education, Federal University of Piauí (UFPI), Teresina, PI, Brazil
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11
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Valenzuela PL, Morales JS, Emanuele E, Pareja-Galeano H, Lucia A. Supplements with purported effects on muscle mass and strength. Eur J Nutr 2019; 58:2983-3008. [PMID: 30604177 DOI: 10.1007/s00394-018-1882-z] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Accepted: 12/13/2018] [Indexed: 02/07/2023]
Abstract
PURPOSE Several supplements are purported to promote muscle hypertrophy and strength gains in healthy subjects, or to prevent muscle wasting in atrophying situations (e.g., ageing or disuse periods). However, their effectiveness remains unclear. METHODS This review summarizes the available evidence on the beneficial impacts of several popular supplements on muscle mass or strength. RESULTS Among the supplements tested, nitrate and caffeine returned sufficient evidence supporting their acute beneficial effects on muscle strength, whereas the long-term consumption of creatine, protein and polyunsaturated fatty acids seems to consistently increase or preserve muscle mass and strength (evidence level A). On the other hand, mixed or unclear evidence was found for several popular supplements including branched-chain amino acids, adenosine triphosphate, citrulline, β-Hydroxy-β-methylbutyrate, minerals, most vitamins, phosphatidic acid or arginine (evidence level B), weak or scarce evidence was found for conjugated linoleic acid, glutamine, resveratrol, tribulus terrestris or ursolic acid (evidence level C), and no evidence was found for other supplements such as ornithine or α-ketoglutarate (evidence D). Of note, although most supplements appear to be safe when consumed at typical doses, some adverse events have been reported for some of them (e.g., caffeine, vitamins, α-ketoglutarate, tribulus terrestris, arginine) after large intakes, and there is insufficient evidence to determine the safety of many frequently used supplements (e.g., ornithine, conjugated linoleic acid, ursolic acid). CONCLUSION In summary, despite their popularity, there is little evidence supporting the use of most supplements, and some of them have been even proven ineffective or potentially associated with adverse effects.
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Affiliation(s)
- Pedro L Valenzuela
- Department of Sport and Health, Spanish Agency for Health Protection in Sport (AEPSAD), Madrid, Spain.,Physiology Unit. Systems Biology Department, University of Alcalá, Madrid, Spain
| | - Javier S Morales
- Faculty of Sport Sciences, Universidad Europea De Madrid, Villaviciosa De Odón, 28670, Madrid, Spain
| | | | - Helios Pareja-Galeano
- Faculty of Sport Sciences, Universidad Europea De Madrid, Villaviciosa De Odón, 28670, Madrid, Spain. .,Research Institute of the Hospital 12 De Octubre (i+12), Madrid, Spain.
| | - Alejandro Lucia
- Faculty of Sport Sciences, Universidad Europea De Madrid, Villaviciosa De Odón, 28670, Madrid, Spain.,Research Institute of the Hospital 12 De Octubre (i+12), Madrid, Spain
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12
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de Freitas MC, Ricci-Vitor AL, Freire RV, Caperuto EC, Vanderlei LCM, Lira FS, Rossi FE. Oral adenosine 5'-triphosphate supplementation improved hemodynamic and autonomic parameters after exercise in hypertensive women. J Exerc Rehabil 2018; 14:671-679. [PMID: 30276192 PMCID: PMC6165982 DOI: 10.12965/jer.1836256.128] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2018] [Accepted: 07/14/2018] [Indexed: 11/22/2022] Open
Abstract
The aim of this study was to verify the autonomic modulation and blood pressure after adenosine-5'-triphosphate (ATP) supplementation associated to acute aerobic exercise in hypertensive women. Eleven hypertensive women (age, 61.8±5.0 years) completed a randomized, double blind trial: ATP supplement condition (ATP=400 mg) or placebo. After 30 min of supplementation or placebo intake, the subjects performed 30 min of aerobic exercise (70%-75% of maximum heart rate). The autonomic modulation was assessed by heart rate variability during rest and recovery (postexercise until 30 min of recovery), the square root of the mean squared difference between adjacent RR intervals (RMSSD), standard deviation of successive values (SDNN), low frequency (LF) and high frequency (HF) were measured. The blood pressure (systolic blood pressure [SBP] and diastolic blood pressure, mmHg) were recorded at rest, immediately postexercise, post-10, post-20, and post-30 min after exercise. For RMSSD, there was statistically significant difference during recovery, with higher RMSSD for ATP compared to placebo (rest=16.4±8.5 vs. placebo=11.6±4.0; ATP=18.5±9.7 msec; P=0.020). When analyzing the delta (recovery minus rest), the RMSSD (ATP=2.1± 7.2 msec vs. placebo=-4.7±7.5 msec; P=0.009), LF (ATP=-19.8±122.7 vs. placebo=-94.1±200.2 msec2; P=0.02), and SDNN (ATP=-2.8±12.2 msec vs. placebo=-10.6±10.5 msec; P=0.010) were higher for ATP than placebo. Furthermore, there was a greater postexercise hypotension at 20 min for ATP (SBP: ATP=-13.2±8.4 mmHg vs. placebo=-6.1±9.9 mmHg; P=0.006). Acute ATP supplementation promoted greater postexercise hypotension for systolic blood pressure and induced faster recovery of heart rate variability in hypertensive women.
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Affiliation(s)
- Marcelo Conrado de Freitas
- Skeletal Muscle Assessment Laboratory (LABSIM), São Paulo State University (UNESP), School of Technology and Sciences, Department of Physical Education, Presidente Prudente, Brazil.,Department of Nutrition, São Paulo Western University-UNOESTE, Presidente Prudente, Brazil
| | - Ana Laura Ricci-Vitor
- Department of Physiotherapy, São Paulo State University (UNESP), Presidente Prudente, Brazil
| | - Renan Valero Freire
- Skeletal Muscle Assessment Laboratory (LABSIM), São Paulo State University (UNESP), School of Technology and Sciences, Department of Physical Education, Presidente Prudente, Brazil
| | | | | | - Fábio Santos Lira
- Exercise and Immunometabolism Research Group, Department of Physical Education, São Paulo State University (UNESP), Presidente Prudente, Brazil
| | - Fabrício Eduardo Rossi
- Immunometabolism of Skeletal Muscle and Exercise Research Group, Department of Physical Education, Federal University of Piauí (UFPI), Teresina, Brazil
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13
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Kerksick CM, Wilborn CD, Roberts MD, Smith-Ryan A, Kleiner SM, Jäger R, Collins R, Cooke M, Davis JN, Galvan E, Greenwood M, Lowery LM, Wildman R, Antonio J, Kreider RB. ISSN exercise & sports nutrition review update: research & recommendations. J Int Soc Sports Nutr 2018; 15:38. [PMID: 30068354 PMCID: PMC6090881 DOI: 10.1186/s12970-018-0242-y] [Citation(s) in RCA: 399] [Impact Index Per Article: 66.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Accepted: 07/17/2018] [Indexed: 12/18/2022] Open
Abstract
Background Sports nutrition is a constantly evolving field with hundreds of research papers published annually. In the year 2017 alone, 2082 articles were published under the key words ‘sport nutrition’. Consequently, staying current with the relevant literature is often difficult. Methods This paper is an ongoing update of the sports nutrition review article originally published as the lead paper to launch the Journal of the International Society of Sports Nutrition in 2004 and updated in 2010. It presents a well-referenced overview of the current state of the science related to optimization of training and performance enhancement through exercise training and nutrition. Notably, due to the accelerated pace and size at which the literature base in this research area grows, the topics discussed will focus on muscle hypertrophy and performance enhancement. As such, this paper provides an overview of: 1.) How ergogenic aids and dietary supplements are defined in terms of governmental regulation and oversight; 2.) How dietary supplements are legally regulated in the United States; 3.) How to evaluate the scientific merit of nutritional supplements; 4.) General nutritional strategies to optimize performance and enhance recovery; and, 5.) An overview of our current understanding of nutritional approaches to augment skeletal muscle hypertrophy and the potential ergogenic value of various dietary and supplemental approaches. Conclusions This updated review is to provide ISSN members and individuals interested in sports nutrition with information that can be implemented in educational, research or practical settings and serve as a foundational basis for determining the efficacy and safety of many common sport nutrition products and their ingredients.
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Affiliation(s)
- Chad M Kerksick
- Exercise and Performance Nutrition Laboratory, School of Health Sciences, Lindenwood University, St. Charles, MO, USA.
| | - Colin D Wilborn
- Exercise & Sport Science Department, University of Mary-Hardin Baylor, Belton, TX, USA
| | | | - Abbie Smith-Ryan
- Department of Exercise and Sport Science, University of North Carolina, Chapel Hill, NC, USA
| | | | | | - Rick Collins
- Collins Gann McCloskey and Barry PLLC, Mineola, NY, USA
| | - Mathew Cooke
- Department of Health and Medical Sciences, Swinburne University of Technology, Hawthorn, Victoria, Australia
| | - Jaci N Davis
- Exercise & Sport Science Department, University of Mary-Hardin Baylor, Belton, TX, USA
| | - Elfego Galvan
- University of Texas Medical Branch, Galveston, TX, USA
| | - Mike Greenwood
- Exercise & Sports Nutrition Lab, Human Clinical Research Facility, Texas A&M University, College Station, TX, USA
| | - Lonnie M Lowery
- Department of Human Performance & Sport Business, University of Mount Union, Alliance, OH, USA
| | | | - Jose Antonio
- Department of Health and Human Performance, Nova Southeastern University, Davie, FL, USA
| | - Richard B Kreider
- Exercise & Sports Nutrition Lab, Human Clinical Research Facility, Texas A&M University, College Station, TX, USA.
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14
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Purpura M, Rathmacher JA, Sharp MH, Lowery RP, Shields KA, Partl JM, Wilson JM, Jäger R. Oral Adenosine-5'-triphosphate (ATP) Administration Increases Postexercise ATP Levels, Muscle Excitability, and Athletic Performance Following a Repeated Sprint Bout. J Am Coll Nutr 2017; 36:177-183. [PMID: 28080323 DOI: 10.1080/07315724.2016.1246989] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
OBJECTIVE Oral adenosine-5'-triphosphate (ATP) administration has failed to increase plasma ATP levels; however, chronic supplementation with ATP has shown to increase power, strength, lean body mass, and blood flow in trained athletes. The purpose of this study was to investigate the effects of ATP supplementation on postexercise ATP levels and on muscle activation and excitability and power following a repeated sprint bout. METHODS In a double-blind, placebo-controlled, randomized design, 42 healthy male individuals were given either 400 mg of ATP as disodium salt or placebo for 2 weeks prior to an exercise bout. During the exercise bout, muscle activation and excitability (ME, ratio of power output to muscle activation) and Wingate test peak power were measured during all sprints. ATP and metabolites were measured at baseline, after supplementation, and immediately following exercise. RESULTS Oral ATP supplementation prevented a drop in ATP, adenosine-5'-diphosphate (ADP), and adenosine-5'-monophosphate (AMP) levels postexercise (p < 0.05). No group by time interaction was observed for muscle activation. Following the supplementation period, muscle excitability significantly decreased in later bouts 8, 9, and 10 in the placebo group (-30.5, -28.3, and -27.9%, respectively; p < 0.02), whereas ATP supplementation prevented the decline in later bouts. ATP significantly increased Wingate peak power in later bouts compared to baseline (bout 8: +18.3%, bout 10: +16.3%). CONCLUSIONS Oral ATP administration prevents exercise-induced declines in ATP and its metabolite and enhances peak power and muscular excitability, which may be beneficial for sports requiring repeated high-intensity sprinting bouts.
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Affiliation(s)
| | - John A Rathmacher
- c Applied Science and Performance Institute , Tampa , Florida , USA.,d Metabolic Technologies Inc. , Ames , Iowa , USA.,e Department of Animal Sciences , Iowa State University , Ames , Iowa , USA
| | - Matthew H Sharp
- b Department of Health Sciences and Human Performance , The University of Tampa , Tampa , Florida , USA
| | - Ryan P Lowery
- c Applied Science and Performance Institute , Tampa , Florida , USA
| | - Kevin A Shields
- b Department of Health Sciences and Human Performance , The University of Tampa , Tampa , Florida , USA
| | - Jeremy M Partl
- b Department of Health Sciences and Human Performance , The University of Tampa , Tampa , Florida , USA
| | - Jacob M Wilson
- c Applied Science and Performance Institute , Tampa , Florida , USA
| | - Ralf Jäger
- a Increnovo LLC , Milwaukee , Wisconsin , USA
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15
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Joy JM, Vogel RM, Moon JR, Falcone PH, Mosman MM, Pietrzkowski Z, Reyes T, Kim MP. Ancient peat and apple extracts supplementation may improve strength and power adaptations in resistance trained men. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2016; 16:224. [PMID: 27430755 PMCID: PMC4950767 DOI: 10.1186/s12906-016-1222-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Accepted: 07/14/2016] [Indexed: 11/16/2022]
Abstract
Background Increased cellular ATP levels have the potential to enhance athletic performance. A proprietary blend of ancient peat and apple extracts has been supposed to increase ATP production. Therefore, the purpose of this investigation was to determine the effects of this supplement on athletic performance when used during 12 weeks of supervised, periodized resistance training. Methods Twenty-five healthy, resistance-trained, male subjects completed this study. Subjects supplemented once daily with either 1 serving (150 mg) of a proprietary blend of ancient peat and apple extract (TRT) or an equal-volume, visually-identical placebo (PLA) daily. Supervised resistance training consisted of 8 weeks of daily undulating periodized training followed by a 2 week overreach and a 2 week taper phase. Strength was determined using 1-repetition-maximum (1RM) testing in the barbell back squat, bench press (BP), and deadlift exercises. Peak power and peak velocity were determined during BP at 30 % 1RM and vertical jump tests as well as a 30s Wingate test, which also provided relative power (watt:mass) Results A group x time interaction was present for squat 1RM, deadlift 1RM, and vertical jump peak power and peak velocity. Squat and deadlift 1RM increased in TRT versus PLA from pre to post. Vertical jump peak velocity increased in TRT versus PLA from pre to week 10 as did vertical jump peak power, which also increased from pre to post. Wingate peak power and watt:mass tended to favor TRT. Conclusions Supplementing with ancient peat and apple extract while participating in periodized resistance training may enhance performance adaptations. Trial Registration ClinicalTrials.gov registration ID: NCT02819219, retrospectively registered on 6/29/2016
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16
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Joy JM, Vogel RM, Moon JR, Falcone PH, Mosman MM, Kim MP. Twelve weeks supplementation with an extended-release caffeine and ATP-enhancing supplement may improve body composition without affecting hematology in resistance-trained men. J Int Soc Sports Nutr 2016; 13:25. [PMID: 27293386 PMCID: PMC4901467 DOI: 10.1186/s12970-016-0136-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Accepted: 06/01/2016] [Indexed: 11/23/2022] Open
Abstract
Background Increased ATP levels may enhance training-induced muscle accretion and fat loss, and caffeine is a known ergogenic aid. A novel supplement containing ancient peat and apple extracts has reported enhanced mitochondrial ATP production and it has been coupled with an extended-release caffeine. Therefore, the purpose of this investigation was to determine the effects of this supplement on body composition when used in conjunction with 12 weeks of resistance training. Methods Twenty-one resistance-trained subjects (27.2 ± 5.6y; 173.5 ± 5.7 cm; 82.8 ± 12.0 kg) completed this study. Subjects supplemented daily with either 1 serving of the supplement (TRT), which consisted of 150 mg ancient peat and apple extracts, 180 mg blend of caffeine anhydrous and pterostilbene-bound caffeine, and 38 mg B vitamins, or an equal-volume, visually-identical placebo (PLA) 45 min prior to training or at the same time of day on rest days. Supervised resistance training consisted of 8 weeks of daily undulating periodized training followed by a 2-week overreach and a 2-week taper phase. Body composition was assessed using DEXA and ultrasound at weeks 0, 4, 8, 10, and 12. Vital signs and blood markers were assessed at weeks 0, 8, and 12. Results Significant group x time (p < 0.05) interactions were present for cross-sectional area of the rectus femoris, which increased in TRT (+1.07 cm2) versus PLA (−0.08 cm2), as well as muscle thickness (TRT: +0.49 cm; PLA: +0.04 cm). A significant group x time (p < 0.05) interaction existed for creatinine (TRT: +0.00 mg/dL; PLA: +0.15 mg/dL) and estimated glomerular filtration rate (TRT: −0.70 mL/min/1.73; PLA: −14.6 mL/min/1.73), which remained within clinical ranges, but no other significant observations were observed. Conclusions Supplementation with a combination of extended-release caffeine and ancient peat and apple extracts may enhance resistance training-induced skeletal muscle hypertrophy without adversely affecting blood chemistry.
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Affiliation(s)
- Jordan M Joy
- Department of Nutrition and Food Sciences, Texas Woman's University, 401 AME Drive #7101, Denton, TX 76207 USA
| | - Roxanne M Vogel
- Department of Nutrition and Food Sciences, Texas Woman's University, 401 AME Drive #7101, Denton, TX 76207 USA
| | - Jordan R Moon
- American Public University System, School of Health Sciences, Charles Town, WV USA
| | - Paul H Falcone
- MusclePharm Sports Science Institute, MusclePharm Corp., Denver, CO USA
| | | | - Michael P Kim
- MusclePharm Sports Science Institute, MusclePharm Corp., Denver, CO USA
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17
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Cutler RG, Camandola S, Malott KF, Edelhauser MA, Mattson MP. The Role of Uric Acid and Methyl Derivatives in the Prevention of Age-Related Neurodegenerative Disorders. Curr Top Med Chem 2016; 15:2233-8. [PMID: 26059354 DOI: 10.2174/1568026615666150610143234] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Revised: 04/13/2015] [Accepted: 05/04/2015] [Indexed: 12/13/2022]
Abstract
High uric acid (UA levels have been correlated with a reduced risk of many neurodegenerative diseases through mechanisms involving chelating Fenton reaction transitional metals, antioxidant quenching of superoxide and hydroxyl free radicals, and as an electron donor that increases antioxidant enzyme activity (e.g. SOD. However, the clinical usefulness of UA is limited by its' low water solubility and propensity to form inflammatory crystals at hyperuricemic levels. This review focuses on the role of UA in neuroprotection, as well as potential strategies aimed at increasing UA levels in the soluble range, and the potential therapeutic use of more water-soluble methyl-UA derivatives from the natural catabolic end-products of dietary caffeine, theophylline, and theobromine.
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Affiliation(s)
- Roy G Cutler
- Laboratory of Neurosciences, 251 Bayview Blvd, Baltimore, MD, 21224, U.S.A.
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18
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Joy JM, Falcone PH, Vogel RM, Mosman MM, Kim MP, Moon JR. Supplementation with a proprietary blend of ancient peat and apple extract may improve body composition without affecting hematology in resistance-trained men. Appl Physiol Nutr Metab 2015; 40:1171-7. [PMID: 26489051 DOI: 10.1139/apnm-2015-0241] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Adenosine-5'-triphosphate (ATP) is primarily known as a cellular source of energy. Increased ATP levels may have the potential to enhance body composition. A novel, proprietary blend of ancient peat and apple extracts has been reported to increase ATP levels, potentially by enhancing mitochondrial ATP production. Therefore, the purpose of this investigation was to determine the supplement's effects on body composition when consumed during 12 weeks of resistance training. Twenty-five healthy, resistance-trained, male subjects (age, 27.7 ± 4.8 years; height, 176.0 ± 6.5 cm; body mass, 83.2 ± 12.1 kg) completed this study. Subjects supplemented once daily with either 1 serving (150 mg) of a proprietary blend of ancient peat and apple extracts (TRT) or placebo (PLA). Supervised resistance training consisted of 8 weeks of daily undulating periodized training followed by a 2-week overreach and a 2-week taper phase. Body composition was assessed using dual-energy X-ray absorptiometry and ultrasound at weeks 0, 4, 8, 10, and 12. Vital signs and blood markers were assessed at weeks 0, 8, and 12. Significant group × time (p < 0.05) interactions were present for ultrasound-determined cross-sectional area, which increased in TRT (+0.91 cm(2)) versus PLA (-0.08 cm(2)), as well as muscle thickness (TRT: +0.46; PLA: +0.04 cm). A significant group × time (p < 0.05) interaction existed for creatinine (TRT: +0.06; PLA: +0.15 mg/dL), triglycerides (TRT: +24.1; PLA: -20.2 mg/dL), and very-low-density lipoprotein (TRT: +4.9; PLA: -3.9 mg/dL), which remained within clinical ranges. Supplementation with a proprietary blend of ancient peat and apple extracts may enhance resistance training-induced skeletal muscle hypertrophy without affecting fat mass or blood chemistry in healthy males.
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Affiliation(s)
- Jordan M Joy
- a MusclePharm Sports Science Institute, MusclePharm Corp., Denver, CO 80239, USA
| | - Paul H Falcone
- a MusclePharm Sports Science Institute, MusclePharm Corp., Denver, CO 80239, USA
| | - Roxanne M Vogel
- a MusclePharm Sports Science Institute, MusclePharm Corp., Denver, CO 80239, USA
| | - Matt M Mosman
- a MusclePharm Sports Science Institute, MusclePharm Corp., Denver, CO 80239, USA
| | - Michael P Kim
- a MusclePharm Sports Science Institute, MusclePharm Corp., Denver, CO 80239, USA
| | - Jordan R Moon
- a MusclePharm Sports Science Institute, MusclePharm Corp., Denver, CO 80239, USA.,b Department of Sports Exercise Science, US Sports Academy, Daphne, AL 36526, USA
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19
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Jäger R, Roberts MD, Lowery RP, Joy JM, Cruthirds CL, Lockwood CM, Rathmacher JA, Purpura M, Wilson JM. Oral adenosine-5'-triphosphate (ATP) administration increases blood flow following exercise in animals and humans. J Int Soc Sports Nutr 2014; 11:28. [PMID: 25006331 PMCID: PMC4086998 DOI: 10.1186/1550-2783-11-28] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Accepted: 06/02/2014] [Indexed: 01/22/2023] Open
Abstract
INTRODUCTION Extracellular adenosine triphosphate (ATP) stimulates vasodilation by binding to endothelial ATP-selective P2Y2 receptors; a phenomenon, which is posited to be accelerated during exercise. Herein, we used a rat model to examine how different dosages of acute oral ATP administration affected the femoral blood flow response prior to, during, and after an exercise bout. In addition, we performed a single dose chronic administration pilot study in resistance trained athletes. METHODS ANIMAL STUDY Male Wistar rats were gavage-fed the body surface area, species adjusted human equivalent dose (HED) of either 100 mg (n=4), 400 mg (n=4), 1,000 mg (n=5) or 1,600 mg (n=5) of oral ATP as a disodium salt (Peak ATP®, TSI, Missoula, MT). Rats that were not gavage-fed were used as controls (CTL, n=5). Blood flow was monitored continuously: a) 60 min prior to, b) during and c) 90 min following an electrically-evoked leg-kicking exercise. Human Study: In a pilot study, 12 college-aged resistance-trained subjects were given 400 mg of ATP (Peak ATP®, TSI, Missoula, MT) daily for 12 weeks, and prior to an acute arm exercise bout at weeks 1, 4, 8, and 12. Ultrasonography-determined volumetric blood flow and vessel dilation in the brachial artery was measured at rest, at rest 30 minutes after supplementation, and then at 0, 3, and 6 minutes after the exercise. RESULTS ANIMAL STUDY Rats fed 1,000 mg HED demonstrated significantly greater recovery blood flow (p < 0.01) and total blood flow AUC values (p < 0.05) compared to CTL rats. Specifically, blood flow was elevated in rats fed 1,000 mg HED versus CTL rats at 20 to 90 min post exercise when examining 10-min blood flow intervals (p < 0.05). When examining within-group differences relative to baseline values, rats fed the 1,000 mg and 1,600 mg HED exhibited the most robust increases in blood flow during exercise and into the recovery period. Human study: At weeks 1, 8, and 12, ATP supplementation significantly increased blood flow, along with significant elevations in brachial dilation. CONCLUSIONS Oral ATP administration can increase post-exercise blood flow, and may be particularly effective during exercise recovery.
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Affiliation(s)
- Ralf Jäger
- Increnovo LLC, 2138 E Lafayette Pl, Milwaukee, WI 53202, USA
| | - Michael D Roberts
- School of Kinesiology, Molecular and Applied Sciences Laboratory, Auburn University, Auburn, AL 36849, USA
| | - Ryan P Lowery
- Department of Health Sciences and Human Performance, The University of Tampa, 318 N Boulevard, Tampa, FL 33606, USA
| | - Jordan M Joy
- Department of Health Sciences and Human Performance, The University of Tampa, 318 N Boulevard, Tampa, FL 33606, USA
| | - Clayton L Cruthirds
- Department of Biomedical Sciences, College of Veterinary Medicine, University of Missouri-Columbia, 1600 Rollins, Columbia, MO 65211, USA
| | | | - John A Rathmacher
- Metabolic Technologies Inc., 2711 S Loop Dr, Suite 4400, Ames, IA 50010, USA ; Department of Animal Sciences, Iowa State University, Ames, IA, 50011, USA
| | - Martin Purpura
- Increnovo LLC, 2138 E Lafayette Pl, Milwaukee, WI 53202, USA
| | - Jacob M Wilson
- Department of Health Sciences and Human Performance, The University of Tampa, 318 N Boulevard, Tampa, FL 33606, USA
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20
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Rathmacher JA, Fuller JC, Baier SM, Abumrad NN, Angus HF, Sharp RL. Adenosine-5'-triphosphate (ATP) supplementation improves low peak muscle torque and torque fatigue during repeated high intensity exercise sets. J Int Soc Sports Nutr 2012; 9:48. [PMID: 23046855 PMCID: PMC3483284 DOI: 10.1186/1550-2783-9-48] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2012] [Accepted: 10/03/2012] [Indexed: 01/08/2023] Open
Abstract
Background Intracellular concentrations of adenosine-5’-triphosphate (ATP) are many times greater than extracellular concentrations (1–10 mM versus 10–100 nM, respectively) and cellular release of ATP is tightly controlled. Transient rises in extracellular ATP and its metabolite adenosine have important signaling roles; and acting through purinergic receptors, can increase blood flow and oxygenation of tissues; and act as neurotransmitters. Increased blood flow not only increases substrate availability but may also aid in recovery through removal of metabolic waste products allowing muscles to accomplish more work with less fatigue. The objective of the present study was to determine if supplemental ATP would improve muscle torque, power, work, or fatigue during repeated bouts of high intensity resistance exercise. Methods Sixteen participants (8 male and 8 female; ages: 21–34 years) were enrolled in a double-blinded, placebo-controlled study using a crossover design. The participants received either supplemental ATP (400 mg/d divided into 2 daily doses) or placebo for 15 d. After an overnight fast, participants underwent strength and fatigue testing, consisting of 3 sets of 50 maximal knee extensions performed on a Biodex® leg dynamometer. Results No differences were detected in high peak torque, power, or total work with ATP supplementation; however, low peak torque in set 2 was significantly improved (p < 0.01). Additionally, in set 3, a trend was detected for less torque fatigue with ATP supplementation (p < 0.10). Conclusions Supplementation with 400 mg ATP/d for 15 days tended to reduce muscle fatigue and improved a participant’s ability to maintain a higher force output at the end of an exhaustive exercise bout.
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Affiliation(s)
- John A Rathmacher
- Department of Animal Science, Iowa State University, Ames, IA, 50010, USA.
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