Changes in Body Composition, Basal Metabolic Rate, and Blood Albumin during the First Year following Laparoscopic Mini-Gastric Bypass

Table 2

Changes of bioelectrical impedance analysis at the end of the study.

Item	Preop	12-months postop	value
BMR J/(h·kg)	8570.9 ± 1821.3	6834.70 ± 1451.3
Total body fat mass (%)	47.7 ± 5.3	29.3 ± 8.4
Total body fat mass (kg)	58.6 ± 13.7	23.0 ± 9.1
Total free fat mass (%)	64.2 ± 13.6	54.6 ± 11.2
Visceral fat level	15.9 ± 3.9	5.8 ± 2.7
Total body water (%)	47.1 ± 9.9	51.8 ± 6.1
Total body water (kg)	47.0 ± 9.9	39.9 ± 8.1
Total muscle mass (kg)	60.9 ± 12.9	51.8 ± 10.7
Right leg fat mass (%)	49.3 ± 7.3	31.9 ± 9.5
Right leg free fat mass (kg)	11.6 ± 1.6	9.7 ± 2.1
Right leg muscle mass (kg)	10.9 ± 2.5	9.2 ± 1.9
Left leg fat mass (kg)	49.2 ± 7.6	32.5 ± 9.3
Left leg free fat mass (kg)	11.5 ± 2.7	9.4 ± 1.9
Left leg muscle mass (kg)	10.9 ± 2.6	8.9 ± 1.9
Right arm fat mass (kg)	56.0 ± 8.3	34.9 ± 9.4
Right arm free fat mass (kg)	3.4 ± 0.8	2.7 ± 1.0
Right arm muscle mass (kg)	3.2 ± 0.9	2.5 ± 0.7
Left arm fat mass (kg)	56.9 ± 8.1	35.4 ± 9.5
Left arm lean mass (kg)	3.6 ± 0.9	2.7 ± 0.8
Left arm muscle mass (kg)	3.4 ± 0.9	2.6 ± 0.7
Trunk fat mass (kg)	43.9 ± 5.1	25.9 ± 8.6
Trunk fat mass (kg)	26.8 ± 6.0	10.8 ± 4.9
Trunk free fat mass (kg)	34.0 ± 6.3	29.9 ± 5.7
Trunk muscle mass (kg)	32.5 ± 6.1	28.7 ± 5.5