title: Reproductive hormones and bone mineral density in women runners.
abstract: We examined the relationships among reproductive hormone concentrations and bone mineral density (BMD) in 43 women runners classified as eumenorrheic (n = 24), oligomenorrheic (n = 8), or amenorrheic (n = 11). Results were compared with a eumenorrheic nonrunner control group (n = 11). Serum 17 beta-estradiol, progesterone, and dehydroepiandrosterone sulfate concentrations were determined in daily blood samples for 21 days, and integrated concentrations (areas under the curve) were calculated. BMD was assessed at the lumbar spine and proximal femur by dual-photon absorptiometry. As expected, 17 beta-estradiol, progesterone, and lumbar spine BMD were higher in the control and eumenorrheic runner groups than in the oligomenorrheic and amenorrheic runner groups (P less than 0.05). Progesterone concentration was significantly correlated with lumbar spine BMD in the eumenorrheic runners (r = 0.61). None of the steroid hormones was significantly related to BMD in the oligomenorrheic/amenorrheic group. The present data suggest that circulating levels of gonadal steroid hormones affect axial BMD in eumenorrheic runners.
authors.affiliation: Curry School of Education, University of Virginia, Charlottesville 22903.
authors.forename: D B
authors.initials: DB
authors.lastname: Snead
authors.forename: A
authors.initials: A
authors.lastname: Weltman
authors.forename: J Y
authors.initials: JY
authors.lastname: Weltman
authors.forename: W S
authors.initials: WS
authors.lastname: Evans
authors.forename: J D
authors.initials: JD
authors.lastname: Veldhuis
authors.forename: M M
authors.initials: MM
authors.lastname: Varma
authors.forename: C D
authors.initials: CD
authors.lastname: Teates
authors.forename: E A
authors.initials: EA
authors.lastname: Dowling
authors.forename: A D
authors.initials: AD
authors.lastname: Rogol
mesh_terms: D000293:Adolescent; D000328:Adult; D000568:Amenorrhea / Q000503:physiopathology; D015519:Bone Density / Q000502:physiology*; D003687:Dehydroepiandrosterone / Q000031:analogs & derivatives / Q000097:blood; D019314:Dehydroepiandrosterone Sulfate; D004958:Estradiol / Q000097:blood; D015444:Exercise / Q000502:physiology*; D005260:Female; D012739:Gonadal Steroid Hormones / Q000097:blood / Q000502:physiology*; D006801:Humans; D008598:Menstruation / Q000502:physiology; D009839:Oligomenorrhea / Q000503:physiopathology; D011374:Progesterone / Q000097:blood; D012420:Running
chemical_list: D012739:Gonadal Steroid Hormones; D003687:Dehydroepiandrosterone; D011374:Progesterone; D004958:Estradiol; D019314:Dehydroepiandrosterone Sulfate