Skip to main content

Table 5 Anaerobic capacity repeated sprint performance results

From: Effects of 28 days of beta-alanine and creatine supplementation on muscle carnosine, body composition and exercise performance in recreationally active females

 

BA (n = 8)

BAC (n = 9)

CRE (n = 8)

PLA (n =7)

Time

P value

Peak power (W/kg)

 

Wingate 1

 Baseline

15.24 ± 4.87d

14.74 ± 5.81d

15.00 ± 3.95d

11.09 ± 2.33abc

14.13 ± 4.62

T = 0.67

 1 Week

15.68 ± 3.85

13.88 ± 2.95

14.63 ± 2.82

13.43 ± 1.93

14.42 ± 2.97

G = 0.46

 4 Weeks

14.77 ± 1.82

13.00 ± 3.40

13.46 ± 2.69

14.26 ± 4.73†

13.83 ± 3.19

T × G = 0.58

Wingate 2

G × W = 0.91

 Baseline

13.51 ± 1.37

13.22 ± 3.15

12.70 ± 3.22†

13.77 ± 3.62

13.28 ± 2.83

W = 0.59

 1 Week

14.97 ± 1.95

14.96 ± 3.80

13.30 ± 3.38

12.67 ± 3.04

14.05 ± 3.16

T × W = 0.46

 4 Weeks

13.68 ± 1.40

13.60 ± 3.89

15.48 ± 4.47

12.61 ± 2.47

13.87 ± 3.33

T × W × G = 0.02

Mean power (W/kg)

 

Wingate 1

 Baseline

6.13 ± 0.97

5.77 ± 0.59

5.87 ± 0.53

5.44 ± 1.21

5.81 ± 0.84

T = 0.46

 1 Week

6.25 ± 0.83

5.89 ± 0.65

6.01 ± 0.65

5.39 ± 0.67

5.90 ± 0.74

G = 0.36

 4 Weeks

6.07 ± 0.80

5.75 ± 0.61

5.65 ± 0.86

5.69 ± 0.76

5.79 ± 0.74

T × G = 0.48

Wingate 2

G × W = 0.89

 Baseline

5.60 ± 0.87

5.42 ± 0.55

5.20 ± 0.54

5.10 ± 1.01

5.34 ± 0.74

W = 0.006

 1 Week

5.48 ± 0.86

5.48 ± 0.62

5.37 ± 0.64

5.21 ± 0.96

5.39 ± 0.74

T × W =0.58

 4 Weeks

5.27 ± 0.86

5.34 ± 0.57

5.19 ± 0.71

5.14 ± 1.05

5.24 ± 0.76

T × W × G = 0.70

Total work (J)

 

Wingate 1

 Baseline

11,467 ± 1,048

10,476 ± 1,499

10,764 ± 1,420

9,541 ± 2,262

10,591 ± 1,653

T = 0.97

 1 Week

11,793 ± 1,438

10,719 ± 1,531

11,081 ± 1,726

9,566 ± 1,422

10,826 ± 1,660

G = 0.07

 4 Weeks

11,494 ± 1,430

10,561 ± 1,223

10,437 ± 2,071

10,152 ± 1,698

10,674 ± 1,621

T × G = 0.33

Wingate 2

G × W = 0.92

 Baseline

10,565 ± 1,862

9,878 ± 1,678

9,545 ± 1,235

8,939 ± 1,800

9,761 ± 1,678

W = 0.02

 1 Week

10,363 ± 1,767

9,986 ± 1,617

9,903 ± 1,605

8,220 ± 1,673

9,892 ± 1,633

T × W =0.48

 4 Weeks

10,019 ± 1,785

9,835 ± 1,320

9,548 ± 1,556

9,168 ± 2,041

9,663 ± 1,619

T × W × G = 0.66

Rate of fatigue (%)

 

Wingate 1

 Baseline

107.4 ± 13.9d

104.1 ± 14.3d

103.7 ± 21.0

92.4 ± 9.4ab

102.3 ± 15.6

T = 0.40

 1 Week

105.8 ± 14.1

102.0 ± 9.9

96.2 ± 16.6

108.4 ± 9.4†

102.9 ± 13.1

G = 0.09

4 Weeks

109.8 ± 10.9d

103.4 ± 10.3

104.2 ± 15.9

93.1 ± 12.4a

102.7 ± 13.1

T × G = 0.52

Wingate 2

     

G × W = 0.96

 Baseline

91.7 ± 12.0†

101.9 ± 11.4

96.0 ± 14.8

92.9 ± 13.7

95.9 ± 13.0

W = 0.02

 1 Week

102.4 ± 9.5

97.9 ± 13.5

99.6 ± 11.2

90.3 ± 21.0

97.8 ± 14.1

T × W = 0.66

 4 Weeks

108.5 ± 13.8‡bd

95.3 ± 16.6ad

99.6 ± 15.9d

82.8 ± 11.1abc

99.1 ± 15.2

T × W × Gq = 0.04

  1. Data are means ± SD. BA signifies beta-alanine only group; BAC represents beta-alanine and creatine combined group; CRE represents the creatine only group; PLA represents the placebo group; T represents time p-level; G represents group p-level, W represents Wingate p-level, T × G represents time by group interaction, T × W × G represents time × group × Wingate interactions, q represents quadratic p-level. MANOVA analysis revealed overall Wilks’ Lambda time (p = 0.004), T × G (0.65), T × W (0.97), and T × G × W effects (p = 0.21). Univariate ANOVA p-levels from MANOVA analysis are presented for each variable. † represents p < 0.05 difference from Wingate 1 baseline while ‡ represents p < 0.05 difference from Wingate 2 baseline. arepresents p < 0.05 difference from BA group. brepresents p < 0.05 difference from BAC group. crepresents p < 0.05 difference from CRE group. drepresents p < 0.05 difference from PLA group. B
Back to article page

Journal of the International Society of Sports Nutrition

ISSN: 1550-2783

Contact us