Objective: Bioelectric impedance analysis (BIA) and dual energy X-ray absorptiometry (DEXA) are two commonly used techniques, but each has its own pros and cons. To assess the accuracy of BIA in comparison with DEXA in the assessment of total and segmental fat mass and fat percentage. Material and Methods: Fifty-four healthy adults (24 men and 30 women) participated in this study. The total fat mass, extremity fat mass, and trunk fat mass with the respective percentages were assessed by both DEXA and BIA techniques. Results: BIA technique significantly underestimated total and segmental fat masses and percentages (p<0.0001) in comparison with DEXA. The average differences were as follows: total fat mass, 5.76±1.04 kg; total fat mass percentage, 10.56±1.43; extremity fat mass, 3.28±0.54 kg; extremity fat mass percentage, 10.72±1.85; trunk fat mass, 3.04±0.62 kg; and trunk fat mass percentage, 9.83±1.24. The highest correlation between BIA and DEXA was in the estimation of total fat mass percentage (0.93) and the lowest was in the estimation of extremity fat mass (0.72). Conclusion: BIA underestimates fat composition, thus the difference should be considered during the evaluation of a client.

In this research, we discussed bone density for women taking into consideration the method of research, we measure the total body mass of women in premenopausal and comparing it with postmenopausal, since the amount of the bone mineral content and bone mineral density, fat mass and lean mass.A cross sectional study conducted at DXA laboratory, Physiology Department, College of Medicine, University of Ninevah, Mosul-Iraq from Jan. 1 - Dec. 31, 2013. Since 174 healthy women recruited from reviewing of college medical academic center. They were divided into two groups: pre menopause group (n = 42) and post menopause group (n= 130). Detailed anthropometric data were gathered from study subjects. The mean age SD of pre-menopause group was (43.37 7.49) year while the mean age SD postmenopausal group (63.63 9.23) years .The T-score, Z-score, Bone Mineral Density (BMD), Bone Mineral Content (BMC), Fat Mass and Lean Mass were measured in the supine position by the use of DXA bone densitometer scanner type (STRATOS) from (DMS) group, France.Bone Mineral Content (BMC) was significantly lower in arm, rib, and thoracic spines. Bone Mineral Density (BMD) in arm, rib, leg and total were significantly low in postmenopausal women. Non-significant differences were noticed between both groups for lean mass. Postmenopausal women having more fat mass than pre menopause group. Both T-score and Z-score for pre menopause and post menopause groups were from class of osteopenia, but it was significantly lower in post menopause group (p-value =0.001, 0.008 respectively).Postmenopausal women were at higher risk of osteoporosis due to lowered Bone Mineral Density , T & Z scores.

Aim: To assess the body composition of fat mass, lean mass, visceral fat mass, and total body water in DM patients and compares their findings with a healthy control group. Material and Methods: A total of 86 people including 40 diabetes Mellitus type 2 matched for sex and age with 46 healthy control participated in the study. BMDs of the lumbar vertebrae and the hip regions like (total femur, femoral neck) were assessed using the DXA technique. The mean age of (DM) group was 59 ± 11.82 years, the height 1.55 ± 0.05 m., the weight 80.82 ± 13.25 kg, and BMI 33.81 ± 6.76 kg/m2. Results: The differences in measurements of the lumbar spine BMD (1.12 ± 0.13 g/cm2), total femur BMD (1.10± 0.17 g/cm2) neck of femur BMD (0.85± 0.35 g/cm2), and total BMD of the body (0.90± 0.06 g/cm2) were highly significant in healthy control group as compared to DM patients 0.84 ± 0.13 g/cm2, 0.99±0.15 g/cm2, 0.82± 0.24 g/cm2 and 0.79 ± 0.09 g/cm2 respectively. Conclusion: The results shows a highly significant in the lumbar spine, total femur, and total BMC, and not significant in the neck of the femur. The total body lean compartment was not significantly different between DM patients and healthy control women groups. The total body water compartment in the DM women group was highly significant lower different comparing with a healthy control group. The mathematical equations to predict total bone density in DM type 2 and healthy control women were calculated.

In this research, we discussed the bone density by measuring the total bone mineral density, fat mass and lean mass in a sample of Mosul people, as soon as to compare the accuracy of the BIA approach to DXA in assessing total body compartments and segmental tissue mass. A cross sectional study conducted at DXA