Tests of muscle function
| Knee angles (°) | Practice trials, n (% of 1RM) | Maximum repetitions (n) | Rest between repetitions (s) | |
| Knee extension | ||||
| Isometric* | 60 | 3 (70, 80, 90% of 1RM) | 3–5 | 40 |
| Isokinetic† | 0–90 | 1–2 (90% of 1RM) | ||
| Knee flexion | ||||
| Isometric‡ | 60 | 3 (70, 80, 90% of 1RM) | 3–5 | 40 |
| Isokinetic† | 0–90 | 1–2 (90% of 1RM) | ||
| Unilateral vertical hop§ | – | 2 | 3 | 20–30 |
| Single-leg hop for distance | – | 2 | 3 | 20–30 |
| Side hop¶ | – | 10 | 1 | 360 |
*Measured with David F200 DMS-EVE (David Health Solutions, 2013, Finland).
†Measured with Biodex System 4 (Biodex Medical Systems, Shirley, New York, USA) at 90°/s.
‡Measured with David F300 DMS-EVE (David Health Solutions, 2013, Finland).
§Measured with MuscleLab, Ergotest Technology, Oslo, Norway.
¶As many hops as possible in 30 s over two lines, 40 cm apart.
RM, repetition maximum.