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  • Title: Performance physique et densité minérale osseuse chez de jeunes adultes libanais.
    Author: Zakhem E, El Khoury G, Feghaly L, Zunquin G, El Khoury C, Peze T, Ayoub ML, Theunynck D, El Hage R.
    Journal: J Med Liban; 2016; 64(4):193-9. PubMed ID: 29845843.
    Abstract:
    INTRODUCTION: The aim of this study was to explore the relationships between performances obtained in different physical tests and bone parameters (bone mineral density (BMD) and bone mineral content (BMC)) in a group of young Lebanese adults. METHODS: One hundred and six young Lebanese adults (45 women and 61 men) whose ages range from 17 to 34 years participated in this study. Weight and height were measured, and body mass index (BMI) was calculated. Daily calcium intake, daily protein intake and physical activity level (h/week) were evaluated using validated questionnaires. The level of physical performance was measured using several physical tests: vertical-jump test, standing long jump test, 3-jumptest, 5-jump-test and 1-RM half-squat. Body composition, bone mineral content (BMC) and BMD at whole body (WB), lumbar spine (L2-L4), total hip (TH) and femoral neck (FN) were measured by dual-energy X-ray absorptiometry (DXA). RESULTS: In women, height, lean mass, 1- RM half-squat and performances obtained in three physical tests (vertical jump test, 5-jump-test and 1-RM halfsquat) were positively correlated to BMD and BMC. In men, lean mass and 1-RM half-squat were positively correlated to BMD and BMC. CONCLUSION: This study suggests that lean mass and maximum strength obtained in half-squat are positively correlated to BMD in young adults.
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