Scivation Xtend BCAA 90 serves

For over 10 years, XTEND has been making the best recovery products in the world. Powered by the XTEND Performance Amino Complex which has been designed to support muscle recovery and growth, XTEND ORGINAL also contains hydrating electrolytes to help you refuel, repair and recover. Try all the sugar-free, mouth-watering flavours of XTEND to support your fitness goals.

L-Leucine 3.5 grams. L-Leucine is one of the three Branched Chain Amino Acids and is sometimes referred to as the key BCAA. It is the most potent inducer of muscle protein synthesis and is a Ketogenic Amino Acid - (produces Ketones when metabolised)1.Studies  show L-Leucine to have an anabolic effect that supports skeletal muscle and appears to be amplified with resistance training2. Studies have revealed that this amino acid acts in a unique way: unlike other amino acids, it aids in burning fat without losing muscle by sparing the muscle proteins and leaving them to assist in building and maintaining muscle3. Researchers have confirmed that people staying on a protein-rich diet, which includes sufficient L-Leucine, lose more body fat while retaining more  lean muscle mass.  Further to this, L-Leucine has also been noted to assist those who suffer from muscle wastage due to diseases such as cancer or auto immune deficiencies.

L-Isoleucine 1.75 grams. L-Isoleucine is widely recognised as an amino acid that can increase endurance and help muscle tissue rebuild. It is particularly useful for athletes and gym goers, as the primary function of Isoleucine in the body is to boost energy levels and assist with recovery from strenuous physical activity5.As a member of the Branched Chain Amino Acid family, L-Isoleucine is one of three amino acids that constitutes nearly 70% of all amino acids in the body’s proteins.

L-Valine 1.75 grams. This amino acid aids the prevention of muscle breakdown. It supplies the muscles with an extra hit of glucose responsible for energy production during physical activity7. L-Valine is also responsible for inhibiting the transport of L-Tryptophan across the blood-brain barrier, which may increase energy and alertness. L-Valine also supports the nervous system, cognitive function and helps regulate the immune system8. Branched Chain Amino Acids7 grams Athletes typically use L-Leucine, L-Isoleucine and L-Valine together to promote muscle growth and recovery. Several studies demonstrate the benefit of taking all three Branched Chain Amino Acids together. XTEND utilises all three Branched Chain Amino Acids, in the nature designed and research proven 2:1:1 ratio and is the most advanced product of its kind. In one study, athletes ingested a supplement containing BCAAs while following an 8-week resistance training program which, resulted in a greater loss of body fat, an increase in lean muscle, and 10 Rep Max strength gains on the bench press and squat when compared against ingestion of whey protein or a typical sports drink9.

L-Glutamine 2.5 grams. L-Glutamine is the most abundant amino acid in the human body, comprising more than 60% of the free amino acid pool in skeletal muscle and greater than 20% of total circulating amino acids. Prolonged high-intensity exercise has been shown to decrease L-Glutamine levels, which may result in glutamine deficiency. Supplemental L-Glutamine may help reduce muscle soreness and rebuild muscle tissue. There is also evidence that L-Glutamine may promote digestive and immune health as well as supporting healthy nerve function10.L-Glutamine is recognised as a very important amino acid helping remove excess ammonia, which is a usual waste product in the human body. This amino acid also turned out to be important for the digestion and for the normal brain function. L-Glutamine aids to protect the lining of the gastrointestinal tract and helps athletes to keep fit.

2-amino-5 (carbmoylamino) pentanoic acid1 gram.This amino acid is produced when the amino acid L-Ornithine is combined with Carbamoyl Phosphate. This happens during the urea cycle, a way that the body disposes of nitrogen waste. The excess created from supplementation is thought to put the urea cycle into overdrive, sucking up the ammonia produced by working muscles before it can produce fatigue.By accelerating ammonia clearance, supplemental 2-amino-5 (carbmoylamino) pentanoic acid postpones the inevitable decrease in muscle pH that happens during intense exertion. As pH drops, the muscle becomes more acidic, and fatigue rapidly sets in12.A 2010 study by Spanish researchers looked at how this process affected the results male strength athletes were able to achieve in bench press workouts. The subjects who were taking 2-amino-5 (carbmoylamino) pentanoic acid completed 50 percent more repetitions when working to the point of muscular failure than subjects taking a placebo13.What’s more, taking this supplement also helps reduce muscular soreness following this high-volume weight training.

Attenuating soreness isn’t the only way that 2-amino-5 (carbmoylamino) pentanoic acid has been shown to aid in recovery, though. Another group of researchers gave this ingredient to a group of male professional cyclists, a demographic whose hard-training methods often leave them with compromised immune systems and illnesses such as upper respiratory infections. The subjects who took this amino acid, experienced reduced and delayed onset of symptoms associated with a compromised immune system that are often experienced after intense exercise. This suggests that 2-amino-5 (carbmoylamino) pentanoic acid has the potential to help the body heal from intense training and avoid some of the symptoms that occur from overtraining14.

2-amino-5 (carbmoylamino) pentanoic acid is proven to increase blood arginine levels and has the potential to enact a wide range of benefits, including elevated protein synthesis, creatine synthesis, and more efficient BCAA utilisation by muscles during exercise15.

Warnings: Keep out of reach of children. Always consult a physician prior to using any dietary supplements.

SOURCES

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3.Eley, H. L., Russell, S. T., and Tisdale, M. J. (2007). Effect of branched-chain amino acids on muscle atrophy in cancer cachexia. Biochem. J. 407, 113–120. doi: 10.1042/BJ20070651

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5.Doi, M., Yamaoka, I., Fukunaga, T. & Nakayama, M. (2003) Isoleucine, a potent plasma glucose-lowering amino acid, stimulates glucose uptake in C2C12 myotubes. Biochem. Biophys. Res. Commun. 312:1111–1117.

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7.Swendsied, M. E., Villalobos, J., Figueroa, W. S. & Drenick, E. J. (1965) The effect of test doses of leucine, isoleucine or valine on plasma amino acid levels. The unique effect of leucine. Am J. Clin. Nutr. 17:317.

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9.Stoppani, J., Scheett, T., Pena, J., Rudolph, C. and Charlebois, D. (2009). Consuming a supplement containing branched-chain amino acids during a resistance-training program increases lean mass, muscle strength and fat loss. Journal of the International Society of Sports Nutrition, 6(S1).

10.Kim, M. and Kim, H. (2017). The Roles of Glutamine in the Intestine and Its Implication in Intestinal Diseases. International Journal of Molecular Sciences, 18(5), p.1051.

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12.Pérez-Guisado, J. and Jakeman, P. (2010). Citrulline Malate Enhances Athletic Anaerobic Performance and Relieves Muscle Soreness. Journal of Strength and Conditioning Research, 24(5), pp.1215-1222.

13.Orozco-Gutierrez JJ, Castillo-Martinez L, Orea-Tejeda A, et al. Effect of L-arginine or L-citrulline oral supplementation on blood pressure and right ventricular function in heart failure patients with preserved ejection fraction. Cardiology journal 2010;17(6):612-8.

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15.Effects of L-citrulline oral supplementation on polymorphonuclear neutrophils oxidative burst and nitric oxide production after exercise. Free Radical Research 2009;43(9):828-35.

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17.Freis, T., Hecksteden, A., Such, U. and Meyer, T. (2017). Effect of sodium bicarbonate on prolonged running performance: A randomized, double-blind, cross-over study. PLOS ONE, 12(8), p.e0182158.

18.Godek, S., Peduzzi, C., Burkholder, R., Condon, S., Dorshimer, G. and Bartolozzi, A. (2010). Sweat Rates, Sweat Sodium Concentrations, and Sodium Losses in 3 Groups of Professional Football Players. Journal of Athletic Training, 45(4), pp.364-371.

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