Variable

ACTN3 Genotype

RR

RX

R allele total

XX

Number

12

33

45

19

Preference

Sprint

5

11

16

6

Endurance

7

17

24

9

Neither

0

5

5

4

%

18.8

51.6

70.3

29.7

Preference

Sprint

41.7

33.3

35.6

31.6

Endurance

58.3

51.5

53.3

47.4

Neither

0.0

41.7

41.7

33.3