Table 3

Dual-energy X-ray absorptiometry measurements expressed as bone mineral density (g/cm2) for runners and cyclists. Values are presented as means and SD (n=40)

MeasureRunners
(n=21)
Cyclists
(n=19)
L-spine L2–L4 (g/cm²)1.267 (0.094)*†1.166 (0.144)*†
Femoral neck (g/cm²)1.157 (0.124)*†1.052 (0.123)*†
Total BMD (g/cm²)1.283 (0.090)**1.195 (0.102)**
Number of athletes with Z-score ≤−1010
Number of athletes with Z-score ≤−201
  • *P≤0.05; P≤0.01.

  • †Missing data form one subject.

  • BMD, bone mineral density; L-spine, lumbar spine.