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Relationships among bone mineral density, body composition, and isokinetic strength in young women.
Calcif Tissue Int. 2004 Mar; 74(3):229-35.CT

Abstract

The purpose of this study was to examine the relationships among bone mineral density (BMD), body composition, and isokinetic strength in young women. Subjects were 76 women (age: 20 +/- 2 yr, height: 164 +/- 6 cm, weight: 57 +/- 6 kg, body fat: 27 +/- 4%) with a normal body mass index (18-25 kg/m(2)). Total body, nondominant proximal femur, and nondominant distal forearm BMD were measured with dual-energy x-ray absorptiometry. Isokinetic concentric (CON) and eccentric (ECC) strength of the nondominant thigh and upper arm were measured at 60 deg/sec. Fat-free mass (FFM) correlated (P < 0.001) with BMD of the total body (r = 0.56) and femoral neck (r = 0.52), whereas fat mass (FM) did not relate to BMD at any site. Leg FFM, but not FM, correlated with BMD in all regions of interest at the proximal femur. Weak associations were observed between arm FFM and forearm BMD. Isokinetic strength did not relate to BMD at any site after correcting for regional FFM. In conclusion, strong, independent associations exist between BMD and FFM, but not FM or isokinetic strength, in young women.

Authors+Show Affiliations

Department of Human Nutrition, Foods and Exercise, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061-0430, USA.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, U.S. Gov't, Non-P.H.S.

Language

eng

PubMed ID

14517718

Citation

Miller, L E., et al. "Relationships Among Bone Mineral Density, Body Composition, and Isokinetic Strength in Young Women." Calcified Tissue International, vol. 74, no. 3, 2004, pp. 229-35.
Miller LE, Nickols-Richardson SM, Wootten DF, et al. Relationships among bone mineral density, body composition, and isokinetic strength in young women. Calcif Tissue Int. 2004;74(3):229-35.
Miller, L. E., Nickols-Richardson, S. M., Wootten, D. F., Ramp, W. K., & Herbert, W. G. (2004). Relationships among bone mineral density, body composition, and isokinetic strength in young women. Calcified Tissue International, 74(3), 229-35.
Miller LE, et al. Relationships Among Bone Mineral Density, Body Composition, and Isokinetic Strength in Young Women. Calcif Tissue Int. 2004;74(3):229-35. PubMed PMID: 14517718.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Relationships among bone mineral density, body composition, and isokinetic strength in young women. AU - Miller,L E, AU - Nickols-Richardson,S M, AU - Wootten,D F, AU - Ramp,W K, AU - Herbert,W G, Y1 - 2003/09/25/ PY - 2003/03/18/received PY - 2003/05/21/accepted PY - 2003/10/1/pubmed PY - 2004/9/29/medline PY - 2003/10/1/entrez SP - 229 EP - 35 JF - Calcified tissue international JO - Calcif Tissue Int VL - 74 IS - 3 N2 - The purpose of this study was to examine the relationships among bone mineral density (BMD), body composition, and isokinetic strength in young women. Subjects were 76 women (age: 20 +/- 2 yr, height: 164 +/- 6 cm, weight: 57 +/- 6 kg, body fat: 27 +/- 4%) with a normal body mass index (18-25 kg/m(2)). Total body, nondominant proximal femur, and nondominant distal forearm BMD were measured with dual-energy x-ray absorptiometry. Isokinetic concentric (CON) and eccentric (ECC) strength of the nondominant thigh and upper arm were measured at 60 deg/sec. Fat-free mass (FFM) correlated (P < 0.001) with BMD of the total body (r = 0.56) and femoral neck (r = 0.52), whereas fat mass (FM) did not relate to BMD at any site. Leg FFM, but not FM, correlated with BMD in all regions of interest at the proximal femur. Weak associations were observed between arm FFM and forearm BMD. Isokinetic strength did not relate to BMD at any site after correcting for regional FFM. In conclusion, strong, independent associations exist between BMD and FFM, but not FM or isokinetic strength, in young women. SN - 0171-967X UR - https://www.unboundmedicine.com/medline/citation/14517718/Relationships_among_bone_mineral_density_body_composition_and_isokinetic_strength_in_young_women_ L2 - https://dx.doi.org/10.1007/s00223-003-0060-2 DB - PRIME DP - Unbound Medicine ER -