Growth hormone (GH), through its action on the liver and the stimulation of somatomedin-C production, is an important hormone in maintaining muscle homeostasis. Many bodybuilders realized the beneficial effects of supplemental human growth hormone (HGH) especiallly for growth hormone deficient people. Growth hormone (GH), which is secreted from the pituitary gland, stimulates growth of all tissues of the body that are capable of growing. Muscle growth is a function of protein accretion and cell proliferation. Muscle protein accretion is a function of protein synthesis and degradation, and the balance between protein synthesis and degradation determines the net gain or loss of muscle mass. There are three different types of muscle in the body: skeletal muscle, smooth muscle and cardiac muscle. All three types of muscle are composed of fibers that permit movement through coordinated contraction and relaxation. Athletes engage in strenuous training to accomplish the goals of their sport. This strenuous training essentially amounts to trauma to the body, in that the human body interprets every strenuous work-out as a threat to its survival. HGH promotes the growth of bone and regulated height, stimulates the breakdown of body fat to produce energy, and the synthesis of collagen for cartilage, tendons and ligaments. HGH helps increase muscle mass, hence its promise to the sports communtity and for anti-aging. Exercise is the repeated use or activity of a muscle group or organ.
Exercise is bodily exertion for the sake of developing and maintaining physical fitness. Anaerobic exercise occurs when the activity results in the body incurring an oxygen debt. Aerobic exercise is physical conditioning involving exercise that does not cause an oxygen debt, such as distance running, jogging, walking, swimming, circuit training or cross country skiing strenuously performed so as to cause a marked, but steady increase in respiration and heart rate over an extended period of time. One of the keys to achieving muscle growth and repair is having an adequate supply of available proteins when growth hormone is released by the body. Protein supplementation for serious athletes, such as body builders, is well accepted and is well known to increase the muscle mass of the athlete. Numerous sources for the protein supplements are known, such as milk, egg, soy, beef and vegetable protein. Isolated fractions of these sources are also known such as ion-exchange whey protein, caseinates, whey protein concentrates, immunoglobulin and egg albumin. Anabolic steroids have been shown to be effective in increasing the size and strength of musculature. Athletes also experience psychological effects including increased aggressiveness and diminished fatigue, which cancontribute to enhanced traing programs. About 90% of the body's daily supply of growth hormone is released during the first four hours that a person sleeps. During sleep, compound proteins and nutrients need to be made readily available to muscles, so that the body can successfully perform the muscle-repairing, muscle-rebuilding processes that ultimately result in increased muscle size and strength.Human growth hormone is used by some athletes to mimic the effects of anabolic steroids. Supplement preparations might contain HGH releasing amino acids (arginine, ornithine, carnitine), a homeopathic preparation of HGH, bovine colostrum, and deer velvet. These supplements are touted in many and variousaspects for antiaging. They're touted to increase muscle mass, increase cardiac function, improve the immune system, increase athletic performance, low blood sugar, lower cholesterol, create younger looking skin, increase hair growth, remove wrinkles, improve vision, and increase memory. |
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