HGH does seem to help healing of damaged tissue. One mechanism is explained by HGH binding to injured cells and stimulating them to multiply faster than normal. Next, it stimulates the body’s release of a substance known as IGF-1
which in turn stimulates synthesis of individual amino acids as well as protein, both mandatory for tissues to grow and heal. Furthermore, it positively regulates the transport of amino acids so that more enters the cells than exits. This then leads to faster protein synthesis and quicker healing. Then again, this same process is hastened even more since HGH drives the body to increase and optimize glucose utilization which is necessary for protein synthesis.
The same Igf-1
that was mentioned above also increases the stimulation of collagen, which is the raw material for connective tissue. With increased collagen, wounds increase in tensile strength and cause them to hold together and heal faster. With this mechanism, bone healing in fractures is positively affected, as well as tendons and ligaments
Keep in mind that most of these findings have been shown in laboratory animals rather than humans. Unfortunately, all too often they do not transfer to the human model or in significant effect.
To date, the only truly accepted confirmation of benefit in humans has come from studies on the brain following head trauma, and in the case of the healing of burns and skin grafts.
Studies on HGH have revealed that, indeed, there is substantial increase in muscle mass, but surprisingly there has been no evidence of increase in muscle strength.
HGH deficiency as may be expected has been linked to athletes’ slower healing following injury.
Keep in mind that some studies such as one coming out of Stanford demonstrated no benefit in sports injuries when compared to athletes taking a placebo.
For those interested in HGH, you may find this sports article interesting.:
The Case For HGH