Most tiles broken on the back of a person in plank position (single striking blow)

Most tiles broken on the back of a person in plank position (single striking blow)
Who
Luca Cuccovillo, Silvio Sabba
What
6 total number
Where
Italy (Milan)
When

The most tiles broken on the back of a person in plank position (single striking blow) is 6 and was achieved by Silvio Sabba and Luca Cuccovillo (both Italy) in Milan, Italy, on 14 April 2016.

The must be no bending at the waist or knees while in the plank position, the body must remain straight. All tiles are standard according to European norm UNE-EN 1304//UNE-EN 538.