Table 2.
Athlete-specific characteristics, separated by athletic group and sex. Values are mean ± standard deviation except accelerometry counts (median (IQR)); P values for post hoc comparison between groups are shown after adjusting for sex
| Variable | Group | Group difference P | ||||
|---|---|---|---|---|---|---|
| 1. Sprint | 2. Endurance | |||||
| Sex | M | F | M | F | ||
| Training age (years) |
< 18 18–29 30–49 > 50 |
17 2 6 3 |
5 1 1 3 |
57 12 22 18 |
8 3 11 15 |
0.140 |
| Current training hours per week |
0–1 1–3 4–7 7+ |
0 5 18 4 |
0 2 4 3 |
2 13 59 36 |
0 4 19 15 |
0.111 |
| Age-graded performance (%) | 82.3 ± 13.6 | 89.5 ± 11.4 | 76.5 ± 10.7 | 80.6 ± 10.2 | 0.002 | |
| Accelerometry low impact (0.5–1 g) counts | 20,876 (12362–40,738) | 14,368 (6623–33,408) | 40,882 (28228–53,412) | 37,161 (25787–55,780) | <0.0005 | |
| Accelerometry medium impact (1–3.5 g) counts | 6434 (2364–13,692) | 3326 (694–13,081) | 33,458 (18847–49,909) | 29,868 (21076–41,859) | < 0.0005 | |
| Accelerometry (counts) high impact (> 3.5 g) counts | 131 (9–693) | 37 (4–293) | 193 (20–1038) | 90 (12–774) | 0.291 | |
Italics represent significance at p < 0.05