What is the Vertec Jump test?
The Vertec Jump test is a measure of vertical jump height which uses the Vertec device to measure performance. The test is extremely practical as it uses a simple device which is portable and can be used in a variety of settings to measure performance. To perform the test, the athlete must perform a maximal jump with either a single- or double-arm swing to reach the highest possible vane of the Vertec device .
However, the Vertec device has been shown to both underestimate [2, 3] and overestimate  performance when compared to a criterion device such as a force plate, contact mat or 3-camera motion analysis systems. Therefore, the Vertec device may not be a reliable method for measuring lower-limb power and performance.
Vertical jumps are often used as a measurement of lower-body power, and thus as an indirect measure of performance . Maximum jump height can provide key information about functional capacity and performance in many sports , and is considered as an essential motor skill in a range of team sports; including soccer , basketball , volleyball  and handball .
As there appears to be a relationship between vertical jump height, 0-30m sprint times  and 1RM back squat strength , it may be a useful measure of performance. This relationship is likely due to the vertical force vectors which all of these activities (vertical jump, sprinting and the back squat) are characterised by. If you are unsure what these force vectors are, then read our article on force-vector training.
This test may therefore be appropriate for assessing performance in a variety of sports such as handball, basketball, volleyball, Olympic weightlifting, American football and football (soccer).