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Table 4 Baseline to Week 16 Body Composition Changes

From: The role of age in the physiological adaptations and psychological responses in bikini-physique competitor contest preparation: a case series

Body Composition

Recommended Range

Baseline

Pre-Contest (Week 16)

Δ Change

Δ% Change

Bikini Competitor Contest Preparation

Weight (kg)

–

55.90

51.50

−4.40

−4.10

BMI (kg∙m−2)

18.5–24.9

20.99

19.34

−1.65

−4.10

Fat Mass (kg)

–

11.71

7.394

−4.32

− 22.59

Body Fat (%)

≥12

21.8

14.9

−6.90

−18.80

SAT Total (mm)

–

49.19

24.36

24.83

−33.76

LBM (kg)

–

42.14

42.301

0.16

0.19

SKMM (kg)

–

21.22

20.84

−0.38

−0.90

DeltCSA (cm2)

–

33.62

36.51

2.89

4.12

GMMT (cm)

–

4.21

3.284

−0.93

−12.36

BMC Total (kg)

–

2.25

2.241

− 0.01

−0.20

BMD Total (g∙cm−2)

–

1.119

1.090

−0.03

−1.31

TBW (L)

–

32.28

32.39

0.11

0.17

ECF (L)

–

11.81

12.02

0.21

0.88

ICF (L)

–

20.41

20.41

0.00

0.00

Masters Bikini Competitor Contest Preparation

Weight (kg)

–

53.07

48.7

−4.37

−4.29

BMI (kg∙m-2)

18.5–24.9

21.75

19.96

−1.79

−4.29

Fat Mass (kg)

–

9.98

6.77

−3.21

−19.14

Body Fat (%)

≥12

19.5

14.4

−5.10

−15.04

SAT Total (mm)

–

33.54

26.07

−7.47

−12.52

LBM (kg)

–

41.27

40.23

−1.04

−1.28

SKMM (kg)

–

19.6

18.66

−0.94

−2.46

DeltCSA (cm2)

–

26.71

29.60

2.89

5.14

GMMT (cm)

–

3.97

2.29

−1.68

−26.77

BMC Total (kg)

–

2.12

2.098

−0.02

−0.52

BMD Total (g∙cm-2)

–

1.101

1.114

0.01

0.59

TBW (L)

–

32.79

31.89

−0.90

−1.39

ECF (L)

–

12.72

12.11

−0.61

−2.46

ICF (L)

–

20.32

19.82

−0.50

−1.25

  1. Subcutaneous adipose tissue (SAT); Lean body mass (LBM); Skeletal muscle mass (SKMM);
  2. Deltoid cross-sectional area (DeltCSA); Gluteus maximus muscle thickness (GMMT)
  3. Bone mineral content (BMC); Bone mineral density (BMD); Total body water (TBW);
  4. Extracellular fluid (ECF); Intracellular fluid (ICF)