Table 1. Physical characteristics of tennis players and control group, and total and regional length of rectus abdominis from pubic symphysis to the discal space between L1 and L2 (mean ± SD).
| Variables | Tennis | Controls |
| Age (years) | 21.9±3.8 | 27.5±8.1 |
| Height (cm) | 182.5±3.9 | 177.7±2.6a |
| Body mass (Kg) | 75.4±6.9 | 75.5±11.1 |
| BMI (Kg/m2) | 22.6±1.5 | 23.9±3.5 |
| Rectus abdominis length (cm) | ||
| 1st segment | 3.5±0.5 | 3.7±0.5 |
| 2nd segment | 3.0±0.0 | 3.0±0.0 |
| 3rd segment | 3.8±0.4 | 3.2±0.5a |
| 4th segment | 3.3±0.4 | 2.8±0.5 |
| 5th segment | 3.6±0.5 | 3.3±0.5 |
| 6th segment | 3.0±0.0 | 3.0±0.0 |
| 7th segment | 3.9±0.4 | 3.0±0.0b |
| 8th segment | 3.1±0.6 | 2.8±0.4 |
| Total | 27.1±2.2 | 25.2±1.8 |
a
P = 0.03 CG vs. TP,
b
P<0.001 CG vs TP.