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Impact of detraining on bone loss in former collegiate female gymnasts.
Calcif Tissue Int. 2004 Dec; 75(6):482-7.CT

Abstract

Undesirable changes in health-related parameters are thought to occur in retiring female athletes, but this has not been examined in longitudinal studies. The purpose of this study was to examine longitudinal changes in bone mineral density (BMD), body composition, and dietary intake in gymnasts and controls. Nonathletic, college-age women (: n = 9) were selected as a control group for comparison to the gymnasts (n = 10). Initial BMDs for the gymnasts were determined by using dual energy X-ray absorptiometry (Lunar, DPX) at the beginning of their final competitive year. Initial BMDs for the controls were measured during a similar time-frame. Follow-up measurements were made at least 1-year after the initial measurement. Gymnasts had significantly greater BMD of the femoral neck (1.262 versus 1.058 g/cm2, respectively), Ward's triangle (1.230 versus 1.008 g/cm2), greater trochanter (1002 versus 0.822 g/cm2), and total body (1.232 versus 1.145 g/cm2) than controls while still competing (P < .05). Following retirement from competition, (mean years of retirement, 4 years), BMD of the gymnasts remained significantly greater than controls at total body, femoral neck, trochanter, and Ward's triangle (P < .05). Significant declines in femoral neck, Ward's triangle, and greater trochanter BMD were found in both gymnasts and controls (0.72% to 1.9% per year), but only gymnasts had a significant decline at the lumbar spine (0.87% per year). In conclusion, BMD changes in former gymnasts appear to be site-specific, and gymnasts continue to have greater proximal femur BMD than controls, despite their decreased exercise, which may help postpone or prevent osteoporosis later in life.

Authors+Show Affiliations

Exercise and Sports Nutrition Program, Texas Woman's University, PO Box 425647, Denton, Texas 76204-5647, USA. JDKudlac@aol.comNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

15365660

Citation

Kudlac, J, et al. "Impact of Detraining On Bone Loss in Former Collegiate Female Gymnasts." Calcified Tissue International, vol. 75, no. 6, 2004, pp. 482-7.
Kudlac J, Nichols DL, Sanborn CF, et al. Impact of detraining on bone loss in former collegiate female gymnasts. Calcif Tissue Int. 2004;75(6):482-7.
Kudlac, J., Nichols, D. L., Sanborn, C. F., & DiMarco, N. M. (2004). Impact of detraining on bone loss in former collegiate female gymnasts. Calcified Tissue International, 75(6), 482-7.
Kudlac J, et al. Impact of Detraining On Bone Loss in Former Collegiate Female Gymnasts. Calcif Tissue Int. 2004;75(6):482-7. PubMed PMID: 15365660.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Impact of detraining on bone loss in former collegiate female gymnasts. AU - Kudlac,J, AU - Nichols,D L, AU - Sanborn,C F, AU - DiMarco,N M, Y1 - 2004/09/16/ PY - 2003/09/11/received PY - 2004/04/12/accepted PY - 2004/9/15/pubmed PY - 2005/4/22/medline PY - 2004/9/15/entrez SP - 482 EP - 7 JF - Calcified tissue international JO - Calcif Tissue Int VL - 75 IS - 6 N2 - Undesirable changes in health-related parameters are thought to occur in retiring female athletes, but this has not been examined in longitudinal studies. The purpose of this study was to examine longitudinal changes in bone mineral density (BMD), body composition, and dietary intake in gymnasts and controls. Nonathletic, college-age women (: n = 9) were selected as a control group for comparison to the gymnasts (n = 10). Initial BMDs for the gymnasts were determined by using dual energy X-ray absorptiometry (Lunar, DPX) at the beginning of their final competitive year. Initial BMDs for the controls were measured during a similar time-frame. Follow-up measurements were made at least 1-year after the initial measurement. Gymnasts had significantly greater BMD of the femoral neck (1.262 versus 1.058 g/cm2, respectively), Ward's triangle (1.230 versus 1.008 g/cm2), greater trochanter (1002 versus 0.822 g/cm2), and total body (1.232 versus 1.145 g/cm2) than controls while still competing (P < .05). Following retirement from competition, (mean years of retirement, 4 years), BMD of the gymnasts remained significantly greater than controls at total body, femoral neck, trochanter, and Ward's triangle (P < .05). Significant declines in femoral neck, Ward's triangle, and greater trochanter BMD were found in both gymnasts and controls (0.72% to 1.9% per year), but only gymnasts had a significant decline at the lumbar spine (0.87% per year). In conclusion, BMD changes in former gymnasts appear to be site-specific, and gymnasts continue to have greater proximal femur BMD than controls, despite their decreased exercise, which may help postpone or prevent osteoporosis later in life. SN - 0171-967X UR - https://www.unboundmedicine.com/medline/citation/15365660/Impact_of_detraining_on_bone_loss_in_former_collegiate_female_gymnasts_ L2 - https://dx.doi.org/10.1007/s00223-004-0228-4 DB - PRIME DP - Unbound Medicine ER -