Importance

Loading Importance Indicators...

Abstract

A landing mat for gymnasts is composed of a top layer serving as a primary cushion, a middle layer disposed under the top layer so as to stabilize the posture of the gymnasts going to land on their feet, and a bottom layer serving as a main cushion and secured to a lower surface of the middle layer. All the layers are made of plastics foams. The top layer is 10-30 mm thick and has a 25%-compression stiffness of 0.20-0.50 kgf/cm.sup.2 and a repelling elasticity of 40-60%. The middle layer is 15-50 mm thick and has a compression stiffness of 1.0-4.0 kgf/cm.sup.2. The bottom layer is 50-175 mm thick and has a compression stiffness of 0.040-0.060 kgf/cm.sup.2 and a repelling elasticity of 35-50%, such that the International Federation of Gymnasts' (FIG) standards going to be revised in 1995 are satisfied with respect to safety and posture stabilizability for the landing gymnasts.

Loading the Abstract Image...

First Claim