When you stretch your quadriceps, you have to be on 1 leg only.
As a result, you have to hold on to something or someone so as not to lose your balance.
But what if you have nothing around you to lean on?
The trick is to fix a point on the ground to keep your balance:
By fixing a point on the ground instead of looking around you, you can keep your balance much more easily.
Very practical for all athletes who stretch often.
