Table 1.
Descriptive characteristics of jockeys and track-work riders in Tasmania
| Study factor | Jockeys (n=8) | Track-work riders (n=20) |
| Age (years) | ||
| Median | 27.00 | 36.50 |
| Mean (±SD) | 28.75 (10.10) | 33.20 (11.08) |
| Range | 18–41 | 15–47 |
| Height (cm) | ||
| Median | 163.45 | 168.25 |
| Mean (±SD) | 163.39 (7.08) | 166.51 (7.36) |
| Range | 154.4–174.9 | 156.6–179.5 |
| Mass (kg) | ||
| Median | 51.75 | 65.90 |
| Mean (±SD) | 55.08 (5.87) | 67.32 (12.51) |
| Range | 50.5–66.3 | 44.2–90.5 |
| Body mass index | ||
| Median | 20.63 | 24.00 |
| Mean (±SD) | 20.62 (1.58) | 24.13 (3.28) |
| Range | 18.45–23.27 | 18.02–30.52 |
| Body fat (%)* | ||
| Median | 15.90 | 29.45 |
| Mean (±SD) | 13.98 (3.52) | 28.15 (8.21) |
| Range | 8.50–16.90 | 17.00–37.60 |
| Bone mineral density (g/cm2)* | ||
| Median | 1.167 | 1.273 |
| Mean (±SD) | 1.157 (0.068) | 1.312 (0.103) |
| Range | 1.085–1.246 | 1.206–1.473 |
*
Subset of data (n=5 jockeys; n=6 track-work riders).