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Testosterone and BMD in Elite Male Lightweight Rowers

Vinther, Anders LU ; Kanstrup, I. -L; Christiansen, E.; Ekdahl, Charlotte LU and Aagaard, P. (2008) In International Journal of Sports Medicine 29(10). p.803-807
Abstract
The purpose of the present study was to investigate if a relationship between BMD and testosterone levels could be identified in elite male lightweight rowers. Thirteen male lightweight national team rowers had their BMD measured in a DEXA scanner. Plasma concentrations of total testosterone (TT), free testosterone (IFT), dihydrotestosterone (DHT) and sex hormone binding globulin (SHBG) and additional parameters related to bone metabolism were measured. Plasma concentrations of TT, FT and DHT were in the lower part of the normal range, while BMD was close to or above normal. BMD of total body and L2-L4 were correlated to years of training (r(s): 0.59, p = 0.034 and r(s): 0.73, p = 0.005) and to TT (r(s): 0.56, p = 0.046 and rs: 0.63, p =... (More)
The purpose of the present study was to investigate if a relationship between BMD and testosterone levels could be identified in elite male lightweight rowers. Thirteen male lightweight national team rowers had their BMD measured in a DEXA scanner. Plasma concentrations of total testosterone (TT), free testosterone (IFT), dihydrotestosterone (DHT) and sex hormone binding globulin (SHBG) and additional parameters related to bone metabolism were measured. Plasma concentrations of TT, FT and DHT were in the lower part of the normal range, while BMD was close to or above normal. BMD of total body and L2-L4 were correlated to years of training (r(s): 0.59, p = 0.034 and r(s): 0.73, p = 0.005) and to TT (r(s): 0.56, p = 0.046 and rs: 0.63, p = 0.021). Moreover, L2 - L4 BMD was correlated to FT (r(s): 0.62, p = 0.024). After adjusting for years of training, partial correlation analysis showed a significant correlation between L2-L4 BMD and TT (r(s): 0.61, p < 0.05). BMD appears to be influenced by both testosterone levels and years of training in elite male lightweight rowers. The relatively high BMD and low testosterone levels indicate that the mechanical loading induced by rowing is more important to BMD than testosterone levels. Prospective investigations are needed to elucidate potential causal relationships. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
bone remodeling, vitamin D, leptin
in
International Journal of Sports Medicine
volume
29
issue
10
pages
803 - 807
publisher
Georg Thieme Verlag
external identifiers
  • wos:000260253900003
  • scopus:53849145714
ISSN
0172-4622
DOI
10.1055/s-2008-1038430
language
English
LU publication?
yes
id
07468285-3f5c-4076-8e31-ad5b004496a6 (old id 1284668)
date added to LUP
2009-02-09 09:41:03
date last changed
2017-07-30 03:57:10
@article{07468285-3f5c-4076-8e31-ad5b004496a6,
  abstract     = {The purpose of the present study was to investigate if a relationship between BMD and testosterone levels could be identified in elite male lightweight rowers. Thirteen male lightweight national team rowers had their BMD measured in a DEXA scanner. Plasma concentrations of total testosterone (TT), free testosterone (IFT), dihydrotestosterone (DHT) and sex hormone binding globulin (SHBG) and additional parameters related to bone metabolism were measured. Plasma concentrations of TT, FT and DHT were in the lower part of the normal range, while BMD was close to or above normal. BMD of total body and L2-L4 were correlated to years of training (r(s): 0.59, p = 0.034 and r(s): 0.73, p = 0.005) and to TT (r(s): 0.56, p = 0.046 and rs: 0.63, p = 0.021). Moreover, L2 - L4 BMD was correlated to FT (r(s): 0.62, p = 0.024). After adjusting for years of training, partial correlation analysis showed a significant correlation between L2-L4 BMD and TT (r(s): 0.61, p &lt; 0.05). BMD appears to be influenced by both testosterone levels and years of training in elite male lightweight rowers. The relatively high BMD and low testosterone levels indicate that the mechanical loading induced by rowing is more important to BMD than testosterone levels. Prospective investigations are needed to elucidate potential causal relationships.},
  author       = {Vinther, Anders and Kanstrup, I. -L and Christiansen, E. and Ekdahl, Charlotte and Aagaard, P.},
  issn         = {0172-4622},
  keyword      = {bone remodeling,vitamin D,leptin},
  language     = {eng},
  number       = {10},
  pages        = {803--807},
  publisher    = {Georg Thieme Verlag},
  series       = {International Journal of Sports Medicine},
  title        = {Testosterone and BMD in Elite Male Lightweight Rowers},
  url          = {http://dx.doi.org/10.1055/s-2008-1038430},
  volume       = {29},
  year         = {2008},
}