@article{Japneet Kaur_Ryan Miller_Eduardo Freitas_Debra Bemben_Michael Bemben_2020, place={Rio de Janeiro - RJ, Brazil}, title={Racial/ethnic differences in bone mineral density, muscle function and fat mass in young women}, volume={18}, url={/bjhbs/article/view/119}, DOI={10.12957/bjhbs.2019.53500}, abstractNote={<p>Background: Racial/ethnic differences in bone mineral density (BMD) result in increased susceptibility of some ethnic groups to fragility fractures in comparison to others. Conventionally, both lean mass and fat mass provide mechanical loading to the skeleton and increase BMD, however, increase in fat mass beyond a certain level without a concurrent increase in muscle mass/strength, is detrimental to the skeleton. The aim of this study was to determine racial/ethnic differences in BMD, muscle function and fat mass in 18-30-year-old women of Caucasian, East-Asian, South-Asian, Hispanic and African-American backgrounds. Materials and methods: Forty-six women participated in the study. The visits included signing a written informed consent and questionnaires to assess health status, menstrual history, physical activity and calcium intake. Body composition (fat mass, bone free lean body mass (BFLBM), and bone mineral content (BMC)) and total and regional BMD were measured using Dual Energy X-Ray Absorptiometry, while handgrip test, jump test, 1Repetition-Maximum leg press test, and bilateral isokinetic testing of knee flexors and extensors were used to quantify lower limb muscle strength and power. Results: African-American women had a higher BMD at the left and right trochanter (p=0.03) and higher BMC at several sites in comparison to South-Asians (p=0.02) and Hispanics (p=0.03). South-Asian women had a higher fat mass (p=0.04) and percent body fat (p=0.003), and lower BFLBM (p=0.04) and strength (p=0.003) than East-Asians and Caucasians. Conclusion: This type of research is essential to identify at-risk minorities and fundamental for creating awareness, developing ethnicity-specific diagnostic criteria, and preventative and therapeutic strategies.</p> <p> </p>}, number={2}, journal={Ïã¸ÛÁùºÏ²Ê¿ª½±½á¹û}, author={Japneet Kaur and Ryan Miller and Eduardo Freitas and Debra Bemben and Michael Bemben}, year={2020}, month={Jan.}, pages={103–113} }