2.4. Strength Measurements
knee flexion
Strength measurements, as a primary endpoint, were taken at baseline (day 0), day 16 and day 17. Height and body mass were measured immediately prior to testing (Portable SECA 213 Stadiometer). All participants completed a warm-up consisting of 5 min cycle ergometer (Wattbike). Subjects then underwent concentric knee extension and flexion strength testing, assessed at an angular velocity of 60°/s through the range of 0–100° knee flexion using an isokinetic dynamometer (Cybex NORM; Computer Sports Medicine Inc, Stoughton, MA, USA). High relative reliability and moderate absolute reliability have been found for this protocol using the Cybex NORM [