Table 1. Subjects characteristics according to the ACTN3 R577X genotypes. Values are means (± standard deviation).
| Variables |
|
RR (n= 50) |
RX (n = 66) |
XX (n = 25) |
P |
| Age (years) |
|
21.9 (2.1) |
21.8 (2.6) |
22.6 (4.3) |
.265 |
| Height (m) |
|
1.76 (.07) |
1.75 (.07) |
1.74 (.06) |
.210 |
| Body mass |
Pre (kg) |
73.1 (13.7) |
71.5 (14.8) |
70.4 (12.6) |
.716 |
|
Post (kg) |
74.0 (14.8) |
72.7 (16.4) |
71.0 (10.6) |
.813 |
| Body mass index |
Pre (kg·cmË—-2) |
23.5 (4.0) |
23.3 (3.8) |
23.3 (3.6) |
.959 |
|
Post (kg·cmË—-2) |
24.0 (4.2) |
23.4 (4.1) |
23.2 (2.6) |
.757 |
| Knee extensors PT |
Pre (Nm) |
229 (43) |
223 (35) |
224 (27) |
.608 |
|
Post (Nm) |
243 (42) * |
238 (37) * |
241 (33) * |
.739 |
| Delta variation (%) |
|
6.1 |
6.9 |
7.7 |
.926 ** |
| Bench press 1RM |
Pre (kg) |
60.2 (14.6) |
59.1 (12.7) |
59.5 (17.5) |
.909 |
|
Post (kg) |
66.9 (12.9) * |
66.3 (11.7) * |
65.2 (13.1) * |
.851 |
| Delta variation (%) |
|
11.1 |
12.3 |
9.6 |
.282 ** |
PT= peak torque; 1RM= one repetition maximum*p < 0.05 between pre and post-training**time by genotype interaction
