Résumé
Hypothesis: body weight is positively associated with bone mass. Few studies, however, have examined the relative importance of the fat and lean components of body weight for skeletal mass and the findings are contradictory
Objective: this study was performed find out the relative influence of fat and lean mass on bone mineral density [BMD] in postmenopausal females
Methodology: one hundred and twenty post-menopausal females were classified in to four groups: Group [1]: 30 women non-obese with BMI less than 30 and has at least 5 years after menopause [YAM]. Group [2]: 30 women non-obese with BMI less than 30 and have at least 10 YAM. Group [3]: 30 women obese with BMI above 30 and has at least 5 YAM. Group [4]: 30 women obese with BMI above 30 and has at least 10 YAM
Results: T score: G3 was significantly higher than that for GI p<0.01, G4 was significantly higher than that for G2 p<0.01. Fat weight: G3 was significantly higher than that for G1 p<0.001, G4 was significantly higher than that G2 p<0.001. Lean weight: G3 was significantly higher than that for GI and p<0.001, G4 was significantly higher than that G2 p<0.001
Conclusion: both lean weight and fat weight have a positive effect on bone density but bone density appears to be affected by lean weight more than fat weight