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Table 8 Muscle and Liver enzymes and Markers of Catabolism

From: Effects of ingesting a pre-workout dietary supplement with and without synephrine for 8 weeks on training adaptations in resistance-trained males

Variable

Group

Number

Time (wk)

 

p-value

0

4

8

ALP

(U/L)

PLA

27

76.8 ± 15.1

66.4 ± 12.9

71.2 ± 13.4

Group

0.24

PWS

27

87.2 ± 24.7

72.3 ± 19.0

78.4 ± 24.9

Time

<0.001

PWS + S

26

76.4 ± 22.8

68.1 ± 17.3

74.4 ± 19.6

G x T

0.25

ALT

(U/L)

PLA

27

25.3 ± 10.0

25.0 ± 22.4

24.6 ± 13.0

Group

0.74

PWS

27

25.1 ± 10.1

26.9 ± 16.0

30.9 ± 17.9

Time

0.73

PWS + S

26

26.6 ± 23.0

28.6 ± 20.8

26.0 ± 12.2

G x T

0.55

AST

(U/L)

PLA

27

29.1 ± 11.0

27.6 ± 17.7

27.1 ± 9.8

Group

0.47

PWS

27

28.8 ± 9.7

31.6 ± 26.1

33.1 ± 19.7

Time

0.96

PWS + S

26

28.4 ± 15.1

28.4 ± 10.3

27.3 ± 8.5

G x T

0.76

CK

(U/L)

PLA

27

310.0 ± 217.2

263.1 ± 214.4

215.5 ± 115.1

Group

0.34

PWS

27

297.5 ± 160.4

256.9 ± 203.7

336.1 ± 242.0

Time

0.79

PWS + S

26

261.2 ± 130.0

324.1 ± 232.2

274.8 ± 172.3

G x T

0.86

LDH

(U/L)

PLA

27

164.2 ± 36.2

153.5 ± 33.9

159.4 ± 29.5

Group

0.90

PWS

27

157.7 ± 24.2

160.7 ± 37.6

162.8 ± 24.3

Time

0.19

PWS + S

26

158.8 ± 32.1

152.5 ± 24.3

160.4 ± 23.6

G x T

0.44

BUN

(mg/dl)

PLA

27

14.9 ± 4.9 b

12.3 ± 6.7

16.2 ± 6.8

Group

0.62

PWS

27

12.0 ± 4.0 c

12.3 ± 5.8

16.1 ± 5.3

Time

<0.001

PWS + S

26

13.6 ± 4.9

12.6 ± 6.6

16.5 ± 5.0

G x T

0.55

Creatinine

(mg/dl)

PLA

27

1.15 ± 0.44

0.72 ± 0.47

0.85 ± 0.36a

Group

0.27

PWS

27

1.08 ± 0.41

0.75 ± 0.38

0.95 ± 0.31

Time

<0.001

PWS + S

26

1.13 ± 0.51

0.82 ± 0.43

1.05 ± 0.28c

G x T

0.78

BUN:Creatinine

PLA

27

15.7 ± 9.6

24.7 ± 19.1

26.5 ± 23.4

Group

0.20

PWS

27

12.7 ± 6.8

22.7 ± 17.3

20.4 ± 15.0

Time

0.002

PWS + S

26

15.3 ± 10.9

20.9 ± 15.1

17.9 ± 12.6

G x T

0.63

  1. Values are means ± standard deviations. All variables were analyzed by MANOVA. MANOVA analysis revealed overall Wilks’ Lambda group (p = 0.43), time (p < 0.001), and group x time (p = 0.66). Greenhouse-Geisser time and group x time (G x T) interaction p-values are reported with univariate group p-values. * represents p < 0.05 difference from baseline. ^ represents p < 0.05 difference from wk 4