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Table 3 Results before and after the intervention by groups

From: Effects of a ketogenic diet on body composition and strength in trained women

 

Group

Before

(X ± SD)

After

(X ± SD)

a

(X ± SD [95% CI])

p-value

d

Time

Group

Time x Group

Pp2)

BM (kg)

KD

61.9 + 9.8

59.7 + 10.1

−2.2 ± 1.2 [−3.0, − 1.3]*

0.005

−0.2

0.08 (0.16)

0.53 (0.02)

< 0.01 (0.52)

NKD

62.6 + 5.9

63.4 + 6.5

0.8 ± 1.8 [−0.4, 2.0]*

0.154

0.1

FM (kg)

KD

18.4 + 6.4

17.3 + 5.5

−1.1 ± 1.5 [−2.2, −0.1]

0.042

−0.2

0.19 (0.09)

0.74 (0.01)

0.01 (0.30)

NKD

18.3 + 4.3

18.7 + 4.5

0.3 ± 0.8 [−0.2, 0.9]

0.225

0.1

FFM (kg)

KD

42.8 + 5.4

42.1 + 6.1

−0.7 ± 1.7 [−1.9, 0.5] *

0.202

− 0.1

0.94 (0.00)

0.47 (0.03)

0.04 (0.21)

NKD

43.5 + 2.8

44.2 + 3.4

0.7 ± 1.1 [−0.1, 1.4]*

0.074

0.2

BP (kg)

KD

41.5 + 8.4

43.0 + 7.7

1.5 ± 4.6 [−1.8, 4.8]*

0.329

0.2

0.001 (0.47)

0.91 (0.00)

0.05 (0.19)

NKD

39.8 + 7.1

44.6 + 7.4

4.8 ± 1.8 [3.6, 5.9]*

< 0.01

0.7

Squat (kg)

KD

68.5 + 11.2

74.1 + 12.3

5.6 ± 7.6 [0.1, 11.0]*

0.045

0.5

< 0.01 (0.74)

0.84 (0.00)

< 0.01 (0.39)

NKD

64.5 + 11.3

80.1 + 10.8

15.6 ± 5.4 [11.7, 19.4]*

0.005

1.4

CMJ (cm)

KD

20.8 + 2.7

22.4 + 3.3

1.7 ± 1.9 [0.3, 3.1]

0.022

0.6

0.00 (0.56)

0.48 (0.03)

0.46 (0.03)

NKD

22.0 + 4.2

24.2 + 4.9

2.2 ± 1.7 [1.1, 3.4]

0.001

0.5

  1. a, changes from baseline; CI confidence interval; P, significant difference between pretest vs postest; d, Cohen’s d; KD ketogenic diet group; NKD non-ketogenic diet group; FM fat mass; FFM fat-free mass; BP bench press; CMJ countermovement jump; * difference (P < 0.05) between KD and NKD group.