Table 3 Body composition analysis components at three time points before and after surgery

Fat (%)

47.96 ± 3.65

40.66 ± 0.80

36.46 ± 0.94

 < 0.001

Fat (kg)

58.15 ± 13.9

40.27 ± 1.60

32.41 ± 1.40

 < 0.001

FFM (kg)

62.96 ± 14.36

58.33 ± 1.84

55.36 ± 1.81

 < 0.001

Muscle Mass(kg)

59.73 ± 13.71

55.41 ± 1.76

52.66 ± 1.72

 < 0.001

Visceral FAT Level

15.93 ± 4.97

10.87 ± 0.50

8.67 ± 0.43

 < 0.001

Trunk Fat (%)

43.05 ± 4.75

35.95 ± 0.99

32.02 ± 1.06

 < 0.001

Trunk Fat (kg)

25.70 ± 6.72

18.17 ± 0.84

14.90 ± 0.78

 < 0.001

Trunk FFM (kg)

33.53 ± 6.22

31.78 ± 5.98

30.45 ± 6.02

 < 0.001

Trunk Muscle Mass (kg)

32.05 ± 6.00

30.39 ± 5.77

29.17 ± 5.76

 < 0.001

Body Water (%)

38.07 ± 2.67

43.44 ± 0.58

46.69 ± 0.68

 < 0.001