Table 1 Comparison of age, height, and body composition between groups

Age (years)

44.0 ± 2.3^a

44.3 ± 2.8

46.0 ± 2.7**

0.01

0.10

0.79

Height (cm)

160.2 ± 5.8

161.1 ± 5.5

159.9 ± 4.8

0.61

0.01

0.13

Weight (kg)

57.1 ± 7.8

60.1 ± 9.1

57.6 ± 7.8

0.38

0.03

0.25

Skeletal muscle mass (kg)

21.1 ± 2.1

23.1 ± 2.9*

22.8 ± 2.5*

0.02

0.10

0.80

Body fat amount (kg)

18.0 ± 5.9

17.7 ± 6.9

16.0 ± 5.0

0.48

0.02

0.20

Body mass index (kg/m²)

22.3 ± 3.2

23.3 ± 4.2

22.5 ± 2.6

0.79

0.01

0.16

Body fat percentage (%)

30.9 ± 6.4

28.7 ± 7.0

27.2 ± 5.5

0.11

0.05

0.44

Skeletal muscle percentage (%)

37.1 ± 3.4

38.7 ± 3.8

39.7 ± 3.0*

0.01

0.07

0.64

Fat-free mass percentage (kg/m²)

15.3 ± 1.1

16.3 ± 1.7*

16.3 ± 1.2*

0.01

0.02

0.82

Waist-hip ratio

0.85 ± 0.05

0.85 ± 0.05

0.82 ± 0.04**

0.01

0.97

0.78