Table 1: Physical characteristics of study subjects, training years, and training volume of runners and cyclists are shown.

Runners ( )Cyclists )Untrained ( )

Age (yrs)
Tanner Stage
Weight (kg) a a, b
Height (cm) a a, b
Body fat (%) a a
Years of training
Training hours/day35
Training days/week6.56
Energy costs for training (Kcal·d−1) b

aSignificant at when compared with untrained group.
bSignificant at when compared with runners.
Values are mean ± SD.