High-intensity interval training (HIIT) is an effective way to improve fitness rapidly. It is an unpleasant way to train, but it works. Caffeine, creatine monohydrate, and amino acids increase exercise performance and recovery from HIIT.
One of the more well-characterized muscle-building supplements is the branched-chain amino acid leucine, which has clearly been shown to inhibit muscle protein breakdown while simultaneously increasing the rate of muscle protein synthesis, ultimately promoting substantial muscle growth.
Amino acids are the building blocks of proteins, but they also act as stimulators of biochemical pathways that synthesize proteins. Likewise, optimal muscle blood flow is considered important for maximizing muscle protein synthesis in weight-trained athletes.
Iranian scientists found that supplementing 10 mgs of boron from Sodium Tetra Borate (STB) per day in healthy young males for a week decreased levels of sex-hormone binding globulin, and significantly increased levels of free testosterone which makes the hormone more biologically active.
In younger athletes, consuming whey protein supplements after exercise promotes recovery and increases gains in strength and muscle mass. - See more at: http://fitnessrxformen.com/nutrition/supplements/whey-protein-boosts-muscle-protein-synthesis/#sthash.TrncjbYJ.dpuf
By now we've all heard of branched chain amino acids and know they are fundamental in the building and maintenance of lean muscle mass but what could be so special about them?
The amino acid arginine, which occurs naturally in some foods, boosts the body's production of nitric oxide. Nitric Oxide (N.O.) supplements actually include arginine – not nitric oxide.
A recent study by American, Finnish and Italian researchers indicates there may be good reasons to take an amino acid supplement during an intense weight training period.
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