title: Effects of ChunDoSunBup Qi-training on growth hormone, insulin-like growth factor-I, and testosterone in young and elderly subjects.
abstract: We observed the response of plasma growth hormone (GH), insulin-like growth factor-I (IGF-I) and testosterone (T) to an acute period of ChunDoSunBup (CDSB) Qi-training. Although the basal level of GH was not different between the two groups, after the portion of the training in which the subjects were physically active (the mid-training point), plasma GH levels increased by 7.26 fold (p < 0.05) in the elderly trainees and by 1.66 fold (p < 0.05) in the young. In response to CDSB Qi-training, IGF-I levels in the young increased significantly at mid-training point, but there were no increase in the elderly. Significant correlations existed between GH and IGF-I levels in the young subjects, but not in the elderly. The T level at the mid-training point increased significantly in elderly subjects but not in the young. These results suggest that CDSB Qi-training is a potential method for modulating of the secretion of growth factor in the young and the elderly, but that the elderly IGF-I response does not equal that of the young. In addition, our study suggests CDSB Qi-training may be one mode of therapy applicable to growth factor related disorders such as GH deficiency in children and osteoporosis in the elderly, especially women.
authors.affiliation: Department of Qi-Medicine, Wonkwang University, Iksan, Korea.
authors.forename: M S
authors.initials: MS
authors.lastname: Lee
authors.forename: C W
authors.initials: CW
authors.lastname: Kang
authors.forename: H
authors.initials: H
authors.lastname: Ryu
authors.forename: J D
authors.initials: JD
authors.lastname: Kim
authors.forename: H T
authors.initials: HT
authors.lastname: Chung
mesh_terms: D000368:Aged; D000375:Aging / Q000378:metabolism*; D001945:Breathing Exercises; D006063:Chorionic Gonadotropin / Q000097:blood; D005260:Female; D019382:Human Growth Hormone / Q000097:blood*; D006801:Humans; D007334:Insulin-Like Growth Factor I / Q000378:metabolism*; D008297:Male; D008875:Middle Aged; D011863:Radioimmunoassay; D013739:Testosterone / Q000097:blood*
chemical_list: D006063:Chorionic Gonadotropin; D019382:Human Growth Hormone; D013739:Testosterone; D007334:Insulin-Like Growth Factor I