TABLE 1
FROM:
Association analysis of the ACTN3 R577X polymorphism and complex quantitative body composition and performance phenotypes in adolescent Greeks
Colin N Moran, Nan Yang, Mark E S Bailey, Athanasios Tsiokanos, Athanasios Jamurtas, Daniel G MacArthur, Kathryn North, Yannis P Pitsiladis and Richard H Wilson
BACK TO ARTICLETable 1. ANOVA analysis of associations between R577X genotype and body composition-, strength/power- and endurance-related phenotypes in male and female subjects
| Total males (N=172,242,93) | Total females (N=151,215,73) | |
|---|---|---|
| Body composition | ||
| BMI (kgm-2) | RR=23.4 (22.8–23.9) | RR=21.9 (21.5–22.3) |
| RX=23.5 (23.0–23.9) | RX=22.3 (21.9–22.6) | |
| XX=23.2 (22.5–23.9) | XX=22.0 (21.5–22.5) | |
| V=0.1%, P=0.791 | V=0.5%, P=0.332 | |
| Triceps skinfolds (mm) | RR=11.1 (10.3–11.8) | RR=16.7 (15.8–17.6) |
| RX=11.6 (10.9–12.3) | RX=17.6 (17.0–18.3) | |
| XX=11.8 (10.8–13.0) | XX=17.4 (16.3–18.6) | |
| V=0.3%, P=0.492 | V=0.6%, P=0.234 | |
| Subscapular skinfolds (mm) | RR=11.4 (10.8–12.1) | RR=13.0 (12.4–13.7) |
| RX=11.7 (11.1–12.4) | RX=13.6 (13.0–14.2) | |
| XX=11.5 (10.5–12.5) | XX=13.3 (12.5–14.3) | |
| V=0.1%, P=0.799 | V=0.4%, P=0.392 | |
| Strength/power-related | ||
| Handgrip strength (kg) | RR=80.3 (77.7–82.9) | RR=49.7 (48.2–51.2) |
| RX=80.6 (78.8–82.5) | RX=49.8 (48.5–51.1) | |
| XX=78.4 (75.8–81.2) | XX=49.7 (47.7–51.7) | |
| V=0.3%, P=0.488 | V=0%, P=0.990 | |
| Basketball throw (m) | RR=6.87 (6.70–7.04) | RR=4.52 (4.42–4.63) |
| RX=6.75 (6.61–6.89) | RX=4.47 (4.38–4.56) | |
| XX=6.88 (6.64–7.13) | XX=4.64 (4.50–4.77) | |
| V=0.3%, P=0.475 | V=0.8%, P=0.159 | |
| Vertical jump (cm) | RR=45.0 (43.9–46.1) | RR=31.2 (30.6–31.9) |
| RX=44.5 (43.5–45.4) | RX=30.5 (29.9–31.2) | |
| XX=43.4 (42.2–44.6) | XX=31.2 (30.3–32.1) | |
| V=0.6%, P=0.203 | V=0.5%, P=0.291 | |
| 40 m Sprint (s) | RR=5.92 (5.85–5.99) | RR=7.43 (7.33–7.52) |
| RX=6.00 (5.94–6.06) | RX=7.47 (7.39–7.55) | |
| XX=6.13 (6.04–6.22) | XX=7.51 (7.38–7.65) | |
| V=2.3%, P=0.003 | V=0.3%, P=0.567 | |
| Agility run (s) | RR=18.8 (18.7–19.0) | RR=21.2 (20.9–21.4) |
| RX=18.9 (18.7–19.0) | RX=21.2 (21.0–21.5) | |
| XX=19.1 (18.8–19.3) | XX=21.4 (21.0–21.7) | |
| V=0.4%, P=0.374 | V=0.2%, P=0.674 | |
| Aerobic capacity | ||
| VO2 max (mlkg-1min-1) | RR=38.0 (37.0–39.1) | RR=30.1 (29.4–30.7) |
| RX=36.7 (35.8–37.7) | RX=30.1 (29.5–30.6) | |
| XX=37.9 (36.4–39.5) | XX=29.3 (28.5–30.1) | |
| V=0.7%, P=0.151 | V=0.5%, P=0.316 |
No. of individuals of each genotype is given in the column headings (for RR, RX and XX genotypes, respectively). For each test, means and their 95% confidence intervals are shown (to 3 significant figures) for each genotype as well as percentage variance explained in ANOVA (V) and its associated probability (P). The reported means and confidence intervals have been converted back from z-scores (used for age-correction) to the equivalent measurements in 17- to 18-year-olds. Tests significant after a Sidak correction (P<0.004) are shown in bold. Note that smaller values for 40 m sprint and agility run are faster.
