Skip to main content

Table 1 Mean (SD) 1500 m, 3000 m, 5000 m, 10,000 m and marathon best running times in (a) males and (b) females in the three ACTN3 R577X genotypes

From: No association between ACTN3 R577X and ACE I/D polymorphisms and endurance running times in 698 Caucasian athletes

(a)

ACTN3R577X males

RR

N = 380

34.7%

RX

N = 492

44.9%

XX

N = 224

20.4%

Additive

(RR = 0, RX = 1, XX = 2)

Recessive

(RR = RX = 0, XX = 1)

 Running time 1500 m (s)

232.6 (10.7)

43.5%

234.2 (13.2)

39.1%

234.0 (15.1)

17.4%

p = 0.54

p = 0.81

 Running time 3000 m (s)

509.6 (27.5)

37.2%

517.0 (28.0)

44.2%

518.1 (26.9)

18.6%

p = 0.08

p = 0.37

 Running time 5000 m (s)

902.1 (61.7)

33.6%

912.2 (61.8)

46.2%

913.2 (59.5)

20.2%

p = 0.25

p = 0.58

 Running time 10,000 m (s)

1860.9 (109.2)

34.8%

1885.7 (125.8)

42.9%

1889.3 (112.1)

22.4%

p = 0.22

p = 0.51

 Running time marathon (s)

9148.6 (593.0)

30.4%

9220.7 (582.1)

47.6%

9129.1 (581.6)

22.0%

p = 0.94

p = 0.41

(b)

ACTN3R577X females

RR

N = 156

29.6%

RX

N = 301

57.1%

XX

N = 70

13.3%

Additive

(RR = 0, RX = 1, XX = 2)

Recessive

(RR = RX = 0, XX = 1)

 Running time 1500 m (s)

269.4 (15.4)

34.7%

268.3 (14.0)

55.6%

262.6 (15.4)

9.7%

p = 0.35

p = 0.30

 Running time 3000 m (s)

600.9 (44.7)

30.4%

602.8 (37.3)

61.6%

600.2 (48.5)

8.0%

p = 0.93

p = 0.89

 Running time 5000 m (s)

1028.2 (79.1)

29.2%

1048.9 (97.1)

59.4%

1048.2 (88.9)

11.5%

p = 0.39

p = 0.83

 Running time 10,000 m (s)

2067.6 (153.6)

27.7%

2101.0 (159.9)

57.4%

2067.6 (153.6)

14.9%

p = 0.61

p = 0.91

 Running time marathon (s)

10,796.4 (818.2)

28%

10,667.3 (695.3)

54%

10,675.3 (552.8)

18%

p = 0.36

p = 0.78

  1. All running times are expressed in seconds because statistical analyses were performed on times converted to seconds. The last two columns of the table correspond to the p-value of the linear regression, using an additive or a recessive genetic model. The percentage values represent the genotype proportions