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measuring dissipation of force of bouldering mats 15-May-2006 At 5:54:22 PM shmalec

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I think this is probably a bit of a waste of time if you don't account for the wobbly nature of a person falling. I think the ratio of the falling distance divided by the thickness of the mat will give you the number of G for a solid body ie a rock. If you don't take into account the springiness in your legs, rotation about your cg, squishiness of your backside etc etc the numbers will suggest bouldering mats should be made like 50cm thick gym mats. Guess you could do some sort of relative comparison of foam - looking for particular acceleration/stiffness characteristics as you squash it, eg constant acceleration/stiffness up to some predefined load level.
Better go get some dinner...