Witty User Manual - EN - v1.5 P. 58 / 171
4.4 WITTY·SEM
There are various categories of "Witty·SEM” tests:
4.4.1 CHANGE DIRECTION
The Witty·SEM/Change Direction type of tests are used to perform exercises in which the traffic light has the
athlete change direction randomly (right, left, forwards, backwards) using the arrow symbols.
Example 1: this could be a variant of the classic T-test, where the athlete starts off, crosses a Start photocell,
runs a few metres and the traffic light indicates (randomly) to sprint to the right or to the left;