Product advantages
- Complete utilization of all metabolic pathways leading to nitric oxide synthesis.
- Increase aerobic capacity.
- Naturally increase energy metabolism without the effect of excessive irritation and agitation.
- Without the "down" effect (feeling even more tired and fatigued after time).
- Improved cognitive function, reaction speed, concentration and focus.
- Guaranteed stimulation without added caffeine - can be consumed even before evening workout sessions.
Dedicated to people:
- Physically active, to increase performance during training/work,
- working mentally or learning, to maximize performance with ingredients that stimulate cognitive function,
- performing activities for long periods of time to reduce fatigue and tiredness, such as drivers during long car rides.
LABEL INFORMATION
STEEL DURANCE A dietary supplement in liquid form. Contains sweeteners. Formula combining the amino acids arginine and citrulline, enriched with sage leaf extract and red spinach. The product is intended for physically active adults, especially those who practice endurance sports. Ingredients: Water, kombucha (fermented tea - water, black tea, sugar, kombucha cultures), L-arginine, red spinach leaf extract (Amaranthus tricolor L.), L-citrulline, acidity regulator citric acid; apple juice from 20% concentrated apple juice, sage leaf extract (Salvia officinalis L.), sweeteners - acesulfame K, sucralose; flavors, preservative - sorbic acid.Nutritional information | Daily serving = 30 ml (½ shot) |
---|---|
Red spinach extract | 2000 mg |
L-arginine | 2000 mg |
L-Citrulline | 1500 mg |
Sage extract | 400 mg |
PRODUCT DESCRIPTION
There is a growing interest in the sports supplement market in ingredients that help raise nitric oxide levels in the body to improve blood flow, and thus help athletes perform long and hard workouts. Many products aimed at the action of increasing training capacity have already been developed, but for various reasons have not met the expectations of athletes, as some:- substances can cause intestinal and gastrointestinal disorders,
- of substances/products have to be taken in large doses/portions, which can also be uncomfortable before training,
- of substances/products are not very effective, they are short-lived because they use only one of the metabolic pathways.
STEEL DURANCE
This product is mainly dedicated to athletes of endurance sports, whose main goal is to maximize endurance and aerobic capacity. However, also those who practice sports with other characteristics can strongly improve their performance. More below. The product's ingredients are a proprietary composition based on knowledge, experience and scientific innovations. STEEL DURANCE is the only product composed to use all metabolic pathways for nitric oxide synthesis.- Without excessive stimulation of the nervous system, which can cause distraction.
- With no stimulation of catecholamines (epinephrine, norepinephrine, dopamine), the product can be consumed during evening training sessions without disrupting sleep patterns.
- Without the risk of the "descent effect" that is often seen, for example, after taking a product that is supposed to stimulate, but generates even more fatigue and tiredness (32).
- It works for up to 8 hours (26).
NITROGEN OXIDE
It is an inorganic chemical compound whose most well-known and remarkable function, in the context of sports physiology, is its role in controlling vasodilation of blood vessels. This leads to improved transport of blood, oxygen and a role in mitochondrial respiration, thereby enhancing training performance and efficiency (1). There are three pathways for nitric oxide synthesis:- By the enzyme NO synthase (arginine).
- By providing a substrate for the production of arginine (citrulline).
- By reducing nitrates in the mouth and stomach to nitric oxide (nitrate-containing plants).
![](https://ppbhc.com/wp-content/uploads/2023/05/STEEL DURANCE infografika v4.webp)
ARGININA
![](https://ppbhc.com/wp-content/uploads/2023/07/arginina.png)
CITRULINE
As a substrate in the production of nitric oxide![](https://ppbhc.com/wp-content/uploads/2023/07/cytrulina.png)
AZOTANS
Another metabolic pathway through which NO can be produced is the nitrate-nitrite-nitric oxide pathway.![](https://ppbhc.com/wp-content/uploads/2023/07/azotany.png)
VOLUME AND DOSAGES
To get such nitrate doses, one would have to drink about 500 ml of beet juice, which is not convenient or good for the stomach before training. As for other sources of nitrates, Dr. Andrew Coggan, for his research work, measured the nitrate content of beets, where there is considerable variability on the market, as well as in red spinach extracts (25). Findings show that red spinach extracts are richer in nitrates than beets, and one study found that a single dose of red spinach extract raised nitrate levels in healthy adult subjects after just 30 to 60 minutes, and NO levels remained elevated for eight hours (26). A study published in the Journal of Strength and Conditioning Research reported that subjects supplementing with nitrate-rich red spinach extract significantly improved their athletic performance. A reduction in the test time (a 4-kilometer bicycle test) was noted, due to an increase in power and speed. The group supplementing with red spinach also saw a reduction in diastolic blood pressure during as well as after exercise (27). In another study, researchers examined 17. active men and women who took 1 gram of red spinach extract or a placebo for seven days, followed by another dose one hour before performing an endurance test. Red spinach supplementation showed a significant increase in performance. The red spinach supplementation group completed the time test an average of 6 seconds faster (6:44 vs. 6:50) than the placebo group. In addition, their average power output was 4.3 watts higher (185.9 watts vs. 181.6 watts) (28).SLAVIA
Studies on athletes indicate that sage improves cognitive function (working memory, reaction time and less fatigue and exertion). The positive effects were obtained in the pre-exercise state and persisted even with fatigue (29).![](https://ppbhc.com/wp-content/uploads/2023/07/szalwia.png)
- Short-term and sprinting (speed and reaction time),
- long effort (long-distance running, cycling, etc.).
BIBLIOGRAPHY
- Oral O. Nitric oxide and its role in exercise physiology. J Sports Med Phys Fitness. 2021 Sep;61(9):1208-11.
- Kerksick CM, Wilborn CD, Roberts MD, Smith-Ryan A, Kleiner SM, Jäger R, et al. ISSN exercise & sports nutrition review update: research & recommendations. J Int Soc Sports Nutr. 2018 Aug;15(1):38.
- Wu G, Morris SMJ. Arginine metabolism: nitric oxide and beyond. Biochem J. 1998 Nov;336 ( Pt 1(Pt 1):1-17.
- Schaefer A, Piquard F, Geny B, Doutreleau S, Lampert E, Mettauer B, et al. L-arginine reduces exercise-induced increase in plasma lactate and ammonia. Int J Sports Med. 2002 Aug;23(6):403-7.
- Tsai P-H, Tang T-K, Juang C-L, Chen KW-C, Chi C-A, Hsu M-C. Effects of arginine supplementation on post-exercise metabolic responses. Chin J Physiol. 2009 Jun;52(3):136-42.
- Forbes SC, Harber V, Bell GJ. The acute effects of L-arginine on hormonal and metabolic responses during submaximal exercise in trained cyclists. Int J Sport Nutr Exerc Metab. 2013 Aug;23(4):369-77.
- Huerta Ojeda Á, Domínguez de Hanna A, Barahona-Fuentes G. [The effect of supplementation with L-arginine and L-citrulline on physical performance: a systematic review]. Nutr Hosp. 2019 Dec;36(6):1389-402.
- Pahlavani N, Entezari MH, Nasiri M, Miri A, Rezaie M, Bagheri-Bidakhavidi M, et al. The effect of l-arginine supplementation on body composition and performance in male athletes: a double-blinded randomized clinical trial. Eur J Clin Nutr. 2017 Apr;71(4):544-8.
- Bailey SJ, Winyard PG, Vanhatalo A, Blackwell JR, DiMenna FJ, Wilkerson DP, et al. Acute L-arginine supplementation reduces the O2 cost of moderate-intensity exercise and enhances high-intensity exercise tolerance. J Appl Physiol. 2010 Nov;109(5):1394-403.
- Knowles RG, Moncada S. Nitric oxide synthases in mammals. Biochem J. 1994 Mar;298 ( Pt 2(Pt 2):249-58.
- Durante W, Johnson FK, Johnson RA. Arginase: a critical regulator of nitric oxide synthesis and vascular function. Clin Exp Pharmacol Physiol. 2007 Sep;34(9):906-11.
- McRae MP. Therapeutic Benefits of l-Arginine: An Umbrella Review of Meta-analyses. J Chiropr Med. 2016 Sep;15(3):184-9.
- Sureda A, Pons A. Arginine and citrulline supplementation in sports and exercise: ergogenic nutrients? Med Sport Sci. 2012;59:18-28.
- Schmidt HH, Nau H, Wittfoht W, Gerlach J, Prescher KE, Klein MM, et al. Arginine is a physiological precursor of endothelium-derived nitric oxide. Eur J Pharmacol. 1988 Sep;154(2):213-6.
- Schwedhelm E, Maas R, Freese R, Jung D, Lukacs Z, Jambrecina A, et al. Pharmacokinetic and pharmacodynamic properties of oral L-citrulline and L-arginine: impact on nitric oxide metabolism. Br J Clin Pharmacol. 2008 Jan;65(1):51-9.
- Benjamin N, O'Driscoll F, Dougall H, Duncan C, Smith L, Golden M, et al. Stomach NO synthesis. Vol. 368, Nature. England; 1994. p. 502.
- Lundberg JO, Weitzberg E, Lundberg JM, Alving K. Intragastric nitric oxide production in humans: measurements in expelled air. Gut. 1994 Nov;35(11):1543-6.
- Lundberg JO, Weitzberg E, Gladwin MT. The nitrate-nitrite-nitric oxide pathway in physiology and therapeutics. Nat Rev Drug Discov [Internet]. 2008;7(2):156-67. Available from: https://doi.org/10.1038/nrd2466
- Wylie LJ, Bailey SJ, Kelly J, Blackwell JR, Vanhatalo A, Jones AM. Influence of beetroot juice supplementation on intermittent exercise performance. Eur J Appl Physiol [Internet]. 2016;116(2):415-25. Available from: https://doi.org/10.1007/s00421-015-3296-4
- Thompson C, Vanhatalo A, Jell H, Fulford J, Carter J, Nyman L, et al. Dietary nitrate supplementation improves sprint and high-intensity intermittent running performance. Nitric Oxide [Internet]. 2016;61:55-61. Available from: https://www.sciencedirect.com/science/article/pii/S1089860316301185
- Thompson C, Wylie LJ, Fulford J, Kelly J, Black MI, McDonagh STJ, et al. Dietary nitrate improves sprint performance and cognitive function during prolonged intermittent exercise. Eur J Appl Physiol. 2015 Sep;115(9):1825-34.
- Wylie LJ, Kelly J, Bailey SJ, Blackwell JR, Skiba PF, Winyard PG, et al. Beetroot juice and exercise: pharmacodynamic and dose-response relationships. J Appl Physiol. 2013 Aug;115(3):325-36.
- Maughan RJ, Burke LM, Dvorak J, Larson-Meyer DE, Peeling P, Phillips SM, et al. IOC consensus statement: dietary supplements and the high-performance athlete. Br J Sports Med [Internet]. 2018 Apr 1;52(7):439 LP - 455. Available from: http://bjsm.bmj.com/content/52/7/439.abstract
- Rokkedal-Lausch T, Franch J, Poulsen MK, Thomsen LP, Weitzberg E, Kamavuako EN, et al. Chronic high-dose beetroot juice supplementation improves time trial performance of well-trained cyclists in normoxia and hypoxia. Nitric oxide Biol Chem. 2019 Apr;85:44-52.
- Gallardo EJ, Coggan AR. What Is in Your Beet Juice? Nitrate and Nitrite Content of Beet Juice Products Marketed to Athletes. Int J Sport Nutr Exerc Metab [Internet]. 2019;29(4):345-9. Available from: https://journals.humankinetics.com/view/journals/ijsnem/29/4/article-p345.xml
- Subramanian D, Gupta S. Pharmacokinetic study of amaranth extract in healthy humans: A randomized trial. Nutrition. 2016;32(7-8):748-53.
- Gonzalez AM, Accetta MR, Spitz RW, Mangine GT, Ghigiarelli JJ, Sell KM. Red Spinach Extract Supplementation Improves Cycle Time Trial Performance in Recreationally Active Men and Women. J Strength Cond Res [Internet]. 2021;35(9). Available from: https://journals.lww.com/nsca-jscr/Fulltext/2021/09000/Red_Spinach_Extract_Supplementation_Improves_Cycle.27.aspx
- Coggan AR, Broadstreet SR, Mikhalkova D, Bole I, Leibowitz JL, Kadkhodayan A, et al. Dietary nitrate-induced increases in human muscle power: high versus low responders. Physiol Rep. 2018 Jan;6(2).
- Babault N, Noureddine A, Amiez N, Guillemet D, Cometti C. Acute Effects of Salvia Supplementation on Cognitive Function in Athletes During a Fatiguing Cycling Exercise: A Randomized Cross-Over, Placebo-Controlled, and Double-Blind Study. Front Nutr. 2021;8:771518.
- Scholey AB, Tildesley NTJ, Ballard CG, Wesnes KA, Tasker A, Perry EK, et al. An extract of Salvia (sage) with anticholinesterase properties improves memory and attention in healthy older volunteers. Psychopharmacology (Berl). 2008 May;198(1):127-39.
- Kennedy DO, Pace S, Haskell C, Okello EJ, Milne A, Scholey AB. Effects of cholinesterase inhibiting sage (Salvia officinalis) on mood, anxiety and performance on a psychological stressor battery. Neuropsychopharmacology. 2006 Apr;31(4):845-52.
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Life Training Ahead of You
Red spinach Amaranthus tricolor L. is a variety of traditional spinach that grows in...
Arginine a key amino acid for athletes that supports nitric oxide synthesis, which dilates vessels....
Citrulline, the second nitric oxide (NO) donor after L-arginine, can be an effective precursor to...
Sage improves cognitive function (working memory), reaction time and reduces feelings of fatigue....
Exit grid
Nutritional information | Daily serving = 30 ml (½ shot) |
---|---|
Red spinach extract | 2000 mg |
L-arginine | 2000 mg |
L-Citrulline | 1500 mg |
Sage extract | 400 mg |
Ingredients
Water, kombucha (fermented tea - water, black tea, sugar, kombucha cultures), L-arginine, red spinach leaf extract (Amaranthus tricolor L.), L-citrulline, acidity regulator citric acid; apple juice from 20% concentrated apple juice, sage leaf extract (Salvia officinalis L.), sweeteners - acesulfame K, sucralose; flavors, preservative - sorbic acid.
BEFORE USE
APPLICATION
The product is intended for physically active adults, especially those who practice endurance sports
RECOMMENDED DAILY ALLOWANCE
Consume 30 ml (2 x 15 ml) once a day, about 30-60 minutes before final exercise. Shake several times before use
STORAGE
At room temperature, away from direct heat sources.
After opening, store in the refrigerator and consume within 48h
ADDITIONAL COMMENTS
Sediment and crystallization that may occur are natural phenomena and do not affect the quality of the product. Do not exceed the portion recommended for consumption during the day. The dietary supplement should not be used as a substitute for a varied diet. A balanced diet and healthy lifestyle are recommended. Keep out of reach of small children. Attention: The product is not recommended for hypotension. Do not use together with medications, especially for hypertension. Not recommended in pregnancy, breastfeeding or with hypersensitivity to any of the ingredients of the product.
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