by Paul C. Henning, Ph.D. CSCS | Research
The benefits of caffeine on long-term endurance performance are well-known [1]. In contrast, it is not understood if caffeine ingestion is ergogenic during short-term high-intensity exercises. It has recently been reported that caffeine causes ergogenic effects when...
by Paul Cribb Ph.D. CSCS. | Research
Now days the public will almost always associate the words “anabolic steroids” with elite athletes, sensational drug scandals, and cheating. However, according to a recent report involving the largest sample group to date; the majority of (anabolic) steroid users are...
by AST Sports Science | Articles, Research
The amino acid Gamma Aminobutyric Acid (GABA) is a neurotransmitter that plays a key role in growth hormone (GH) secretion. Twenty years ago, a group of Italian researchers published several studies showing GABA’s unique ability to significantly increase...
by AST Sports Science | Articles, Research, Supplements
Glutamine and GABA are two extremely effective GH stimulators. In fact, they have a greater impact on increasing growth hormone than any other natural substances I know of. GABA has been shown in studies to increase growth hormone levels by as much as 550%. GABA also...
by Paul C. Henning, Ph.D. CSCS | Research
Skeletal muscle contains high concentrations of histidine-containing dipeptides (HCD), in the form of carnosine, anserine, or ophidine. Carnosine, the only HCD found in humans, is related to high-intensity exercise performance 1. Beta-alanine is the rate-limiting...
by Paul Cribb Ph.D. CSCS. | Research
Glutamine is essential for protein synthesis and muscle cell growth. While maintaining glutamine status is critical to hard training athletes and the critically ill, very little research has investigated the most effective nutritional method to enhance glutamine...
by AST Sports Science | Research
Crazy huh? No this is not some new ad like you would see in Muscular Development. This actually has some truth behind it. Drinking bottled water increases testosterone levels in men! A recent study led by Peninsula Medical School and the University of Exeter and...
by Paul C. Henning, Ph.D. CSCS | Research
Creatine has proven to be very beneficial for resistance-trained athletes and is the most extensively researched form of creatine by far is creatine monohydrate 1. Research consistently demonstrates the efficacy of creatine supplementation by increasing muscle...
by Paul Cribb Ph.D. CSCS. | Articles, Research
Athletes know the importance of growth hormone (GH) for building muscle and shedding fat. While virtually every athlete I know takes supplements, most don’t realize that some supplements can actually blunt the GH response to exercise. Melatonin...
