Journal of Bone and Mineral Metabolism

, Volume 21, Issue 1, pp 17–21

Relative contribution of lean and fat mass component to bone mineral density in males

Authors

  • Tsutomu Douchi
    • Department of Obstetrics and Gynecology, Faculty of Medicine, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan
  • Riki Kuwahata
    • Department of Obstetrics and Gynecology, Faculty of Medicine, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan
  • Takashi Matsuo
    • Department of Obstetrics and Gynecology, Faculty of Medicine, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan
  • Hirofumi Uto
    • Department of Obstetrics and Gynecology, Faculty of Medicine, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan
  • Toshimichi Oki
    • Department of Obstetrics and Gynecology, Faculty of Medicine, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan
  • Yukihiro Nagata
    • Department of Obstetrics and Gynecology, Faculty of Medicine, Kagoshima University, 8-35-1 Sakuragaoka, Kagoshima 890-8520, Japan

DOI: 10.1007/s007740300003

Cite this article as:
Douchi, T., Kuwahata, R., Matsuo, T. et al. J Bone Miner Metab (2003) 21: 17. doi:10.1007/s007740300003

Abstract.

 We investigated the relative contribution of lean body mass (LBM) and body fat mass to bone mineral density (BMD) in 93 healthy Japanese male volunteers (mean age, 33.1 ± 6.9 years; range, 18–54 years). Age, height (Ht), weight (Wt), and body mass index (BMI, Wt/Ht2) were recorded. Body fat mass, percentage of body fat, body fat mass/Ht2, LBM, LBM/Wt, LBM/Ht2, and lumbar spine (L2–L4) and total body BMD (TBBMD) were measured by dual-energy X-ray absorptiometry. On the Pearson correlation test, LBM was positively correlated with L2–L4 BMD. LBM, LBM/Wt, and LBM/Ht2 were positively correlated with TBBMD. However, body fat mass and body fat mass/Ht2 were not correlated with lumbar spine and total body BMD. On the partial correlation test, LBM was still correlated with lumbar spine (r = 0.307, P < 0.05) and total body BMD (r = 0.545, P < 0.0001), irrespective of age and height, whereas body fat mass was not correlated with BMD of these sites (r = −0.069 and −0.169, respectively). We concluded that, in males, LBM is one of the significant determinants of BMD whereas body fat mass is a negligible BMD determinant.

Key words bone mineral densitylean body massbody fat massmales

Copyright information

© Springer-Verlag Tokyo 2003