New exercise technology designed for athletes increases production of 'HGH'

I wonder if HGH would be useful in neurogenesis. In all my research I haven't come across HGH and stroke rehab yet.
http://www.smartplanet.com/video/new-exercise-technology-designed-for-athletes-increases-production-of-hgh/6246488?tag=nl.e662
At NASA Ames Research Park, scientist Peter Wasowski has developed an alternative exercise machine called Vasper. The user wears compression cuffs on the arms and legs and core-cooling panels on the chest and head. During exercise, the machine traps large amounts of lactic acid in the body, stimulating the pituitary gland and producing more HGH or human growth hormone.