Gacon Test is an intermittent beep style test, with 45 seconds running, 15 seconds rest and with the running distance (as well as the running speed) incrementally increasing.
It allows to measure the Maximal Aerobic Speed (MAS), VO2max and Maximal Heart Rate (HRmax).
On the basis of the results, it is possible to personalize the intermittent running drills. Procedure: Mark out an oval running track with cones at the distance of 125m, 131.25m, 137.5m etc.
All participants line up at the starting line. Players are required to run 125 metres within 45 seconds. Upon completion, they are given a 15 seconds rest. When the 15 seconds are up, they repeat the run in the opposite direction back to the starting cone, but this time the distance is increased by 6.25m to 131.25m. For each repetition, the distance is increased by 6.25m while the running (45sec) and the rest time (15sec) remain constant.
The athletes continue until they cannot to cover the set distance in 45 seconds.