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Table 2 Comparison of energy intake and exercise energy expenditure between groups according to energy availability level

From: Association of energy availability with resting metabolic rates in competitive female teenage runners: a cross-sectional study

  

EA (kcal⋅kg−1 FFM⋅d−1)

  
 

All

> 30

< 30

p

Effect size

N

18

12

6

  

Energy intake

     

(kcal⋅kg−1 FFM⋅d−1)

56.8 ± 15.2

65.4 ± 10.0

39.5 ± 6.2

<0.001

2.75

Exercise energy expenditure

     

(kcal⋅kg−1 FFM⋅d−1)

21.7 ± 5.9

21.0 ± 5.9

23.1 ± 6.3

0.502

0.33

Energy availability

     

(kcal⋅kg−1 FFM⋅d−1)

35.0 ± 15.0

44.3 ± 6.6

16.5 ± 7.5

<0.001

3.85

  1. Values are presented as mean ± standard deviation
  2. EA: energy availability, FFM: fat free mass (kg)