Table 1.
Comparison of anthropometric characteristics between groups according to energy availability level
| EA (kcal⋅kg−1 FFM⋅d−1) | |||||
|---|---|---|---|---|---|
| All | > 30 | < 30 | p | Effect size | |
| N | 18 | 12 | 6 | ||
| Age (years) | 16.8 ± 0.9 | 16.8 ± 0.9 | 16.8 ± 0.8 | >0.99 | <0.01 |
| Height (cm) | 160.3 ± 5.8 | 159.2 ± 6.5 | 162.6 ± 3.3 | 0.261 | 0.56 |
| Body mass (kg) | 45.6 ± 5.2 | 43 ± 3.6 | 51 ± 3.4 | <0.001 | 2.14 |
| BMI (kg⋅m−2) | 17.7 ± 1.3 | 16.9 ± 0.5 | 19.3 ± 1.0 | 0.001 | 3.22 |
| % fat (%) | 13.5 ± 4.2 | 12.0 ± 2.6 | 16.6 ± 5.2 | 0.084 | 1.21 |
| Fat mass (kg) | 6.3 ± 2.6 | 5.2 ± 1.3 | 8.6 ± 3.2 | 0.047 | 1.56 |
| Fat free mass (kg) | 39.3 ± 3.5 | 37.8 ± 3.2 | 42.4 ± 1.4 | 0.005 | 1.56 |
| BMDTBLH (g⋅cm−2) | 1.021 ± 0.039 | 1.006 ± 0.037 | 1.049 ± 0.027 | 0.024 | 1.18 |
| Z-score (TBLH) | 0.1 ± 0.5 | −0.1 ± 0.5 | 0.4 ± 0.3 | 0.042 | 1.05 |
| Amenorrhea (%) | 50 | 41.7 | 66.7 | 0.620 | 0.24 |
Values are presented as mean ± standard deviation
EA: energy availability, BMI: body mass index, BMDTBLH: bone mineral density of total body less head