SACH-SAWCH

A circle is equally described by it's radius or diameter . We use the diameter when the entire stature is in play. So, a full gait cycle of two steps is measured in statures from the wheel diameter (full stature). One step (either side) is measured using the radius of that circle (half diameter). So normal stride (2 steps) = 75% of stature. One step (either side) is 75% of the radius or half stature. So easy!! A mild slowing might get down to about 65%. A pressured walk might get to 85% stature.