The Counter-movement Jump (CMJ) is a vertical jump performed with a preparatory downward movement prior to take-off (the "counter-movement"). It begins with a quick eccentric/pre-stretch phase ...

Background The ‘jumper's knee paradox’, where symptomatic athletes appear to perform better in a counter movement jump (CMJ) compared to asymptomatic controls in previous case–control studies is not ...

Before and after plyometric training, 10 m and 20 m sprint time, squat jump (SJ), countermovement jump (CMJ), and eccentric utilization ratio (CMJ/SJ) were determined. Muscle soreness was measured ...