Table 2.
The ACTN3 R577X genotype and allele frequencies in all groups
| Group | Number | Genotype | Allele frequency | |||
|---|---|---|---|---|---|---|
| R/R | R/X | X/X | R allele | X allele | ||
| Runners | ||||||
| Long distance | 65 | 13(20.0)*,** | 29(44.6)*,** | 23(35.4)*,** | 55(42.3)¥, ¥¥ | 75(57.7)¥, ¥¥ |
| Short distance | 72 | 29(40.3)*** | 31(43.1)*** | 12(16.7)*** | 89(61.8)¥¥¥ | 55(38.2)¥¥¥ |
| Total | 187 | 57(30.5) | 86(46.0) | 44(23.5) | 200(53.5) | 174(46.5) |
| Swimmers | ||||||
| Long distance | 48 | 18(37.5)#, ^ | 18(37.5)# | 12(25.0)# | 57(57.0)& | 43(43.0)& |
| Short distance | 43 | 16(37.2)^^ | 22(51.2) | 5(11.6) | 55(62.5) | 33(37.5) |
| Total | 91 | 34(37.4) | 40(43.9) | 17(18.7) | 108(59.3) | 74(40.7) |
| Controls | 217 | 48(22.1) | 129(59.4) | 40(18.4) | 225(51.8) | 209(48.2) |
Values are absolute (relative frequencies in parentheses)
*χ 2(2) = 8.50, p < 0.01, genotype frequency, LDR vs. controls
**χ 2(2) = 9.29, p < 0.01, genotype frequency, LDR vs. SDR
***χ 2(2) = 9.41, p < 0.01, genotype frequency, SDR vs. controls
# χ 2(2) = 8.01, p < 0.02, genotype frequency, LDS vs. controls (χ 2(1) = 6.14, p < 0.01, RR genotype, SDS vs. controls
^χ 2(1) = 4.25, p < 0.04, RR genotype, LDR vs. LDS
^^χ 2(1) = 4.97, p < 0.03, RR genotype, SDS vs. controls
¥¥ χ 2(1) = 10.42, p < 0.001, allele frequency, LDR vs. SDR
¥¥¥ χ 2(1) = 4.32, p < 0.05, allele frequency, SDR vs. controls
&χ 2(1) = 4.30, p < 0.04, allele frequency, LDR vs. LDS