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Table 3 Macronutrient and Energy Intake Scaled for Body Size of British Professional and Amateur Natural Bodybuilders

From: Nutritional strategies of British professional and amateur natural bodybuilders during competition preparation

 

Stage

PRO

SD

AMA

SD

Mean

SD

p time

p division

p time × division

Male

 Protein (g/kg BW)

Start

2.9

0.9

2.8

0.6

2.9

0.7

0.060

0.814

0.889

End

3.1

0.6

3.0

0.8

3.0

0.7

 Carbohydrate (g/kg BW)

Start

4.9

1.1

4.1

1.2

4.3

1.2

0.228

0.034

0.135

End

4.9

1.3

3.5

1.5

3.8

1.8

 Fat (g/kg BW)

Start

0.6

0.3

0.8

0.3

0.8

0.3

0.024

0.549

0.363

End

0.8

0.3

0.8

0.4

0.8

0.3

 Energy (kcal/kg BW)

Start

37.2

7.5

34.5

6.1

35.2

6.5

0.089

0.124

0.301

End

36.6

5.4

31.4

6.6

32.6

6.4

Female

 Protein (g/kg BW)

Start

3.2

0.6

3.2

0.8

3.2

0.8

0.113

0.967

0.879

End

3.1

0.8

2.6

1.6

2.8

1.4

 Carbohydrate (g/kg BW)

Start

4.0

1.4

3.0

1.1

3.4

1.2

0.152

0.201

0.626

End

3.1

0.8

2.6

1.6

2.8

1.4

 Fat (g/kg BW)

Start

0.8

0.5

0.7

0.3

0.7

0.4

0.572

0.998

0.714

End

0.7

0.3

0.7

0.4

0.7

0.3

 Energy (kcal/kg BW)

Start

34.5

12.3

29.1

5.5

31.0

8.5

0.827

0.251

0.554

End

32.2

3.1

30.2

7.6

30.9

6.3

  1. p time, difference in means over the competition preparation diet (start, middle and end of phases), p result, division in means between PRO and AMA. Time x division interaction between diet over time and division. Differences in macronutrients and energy measured by repeated measures ANOVA. Statistical significance assumed where p < 0.05
  2. Abbreviations: Phase stage of the competition preparation, PRO professional, AMA amateur, SD standard deviation