The jump mat software has the GCT and flight time (ms), the VJH in centimeters (cm) and efficiency automatically displayed in a chart.
The data of the force plate were collected as follows: the GCT during the first foot contact until the foot breaks contact again (in milliseconds: ms) was measured and the VJH (in millimeters: mm) was calculated.
The Pearson correlation coefficient (r) was calculated for the association between the values VJH and GCT of the force plate and the jump mat.
The VJH on the jump mat represent larger values for heights compared to the force plate, and this difference increases slightly with larger jump heights.
A very strong correlation was determined between the two devices (HE jump mat and force plate) for VJH and GCT.