Table 2. Pearson correlation coefficients between changes (Δ scores) in bone mineral values over the 3-year period with baseline body composition and jumping performance variables.
| Variable |
Rhythmic gymnasts (n = 25) |
Untrained controls (n = 25) |
| ΔWB BMD (g·cm-2) |
ΔFN BMD (g·cm-2) |
ΔWB BMD (g·cm-2) |
ΔFN BMD (g·cm-2) |
| Age (yrs) |
.28 |
-.04 |
.32 |
.16 |
| Bone age (yrs) |
.19 |
.06 |
.62 * |
.35 |
| BMI (kg/m2) |
.13 |
.17 |
.58 * |
.30 |
| Fat mass (kg) |
.07 |
.11 |
.73 * |
.47 * |
| Fat free mass (kg) |
.48 * |
.45 * |
.61 * |
.36 |
| CMJ (cm) |
.11 |
.07 |
.22 |
.27 |
| RJ15s (cm) |
.29 |
..48* |
.33 |
.21 |
* Statistically significant; p < 0.05.WB, whole body; BMD, bone mineral density; FN, femoral neck; CMJ, countermovement jump; RJ15s, the rebound jumps for 15 seconds.
