How Many Percent of BW is Supported by the Hands in a Plank Position?

Today i did some measurements to find out how many percent of MY bodyweight is supported on my hands in a plank position of various heights.

Using standard height plyometric boxes of heights 30 inch, 24 inch, 18 inch, 12 inch and the floor.

BW = 65.6 kg
Height = 170 cm

Results:

30 inch box - 16.9kg = 25.8%
24 inch box - 27.6kg = 42.1%
18 inch box - 38.1kg = 58.1%
12 inch box - 40.7kg = 62.0%
Kneeling Plank on floor - 40.7kg = 62.0%
Pull Plank on floor - 46.0kg = 70%

Comments:

Good reference for your push up progressions.

A 6 inch difference makes a big difference at the higher heights. If you need more micro adjustments, you can consider using barbel plates of various thicknesses to use intermediate height adjustments.