Abstract: An orthopedic shoe (01), for preventing excess pressure loads on pressure-sensitive foot soles, in particular those of diabetics, has a rigid sole (02) which substantially precludes bending of the forward joint of the foot during walking. A toes and/or heel area has a convexly rounded sole portion (04, 05) allowing rolling. The shoe has a shaft (03) with a fixation device (06, 07) to fix a foot in the shoe. The fixation device has a heel strap (11) and a dorsal strap (12). The dorsal strap has a load-transmitting attachment, with a left and a right connecting element (18, 19), to the left and right portion (11a, 11b) of the heel strap. The connecting elements each have a distance to the two ends (13, 16) of the heel strap attached laterally to the shoe and a distance to the center (20) of the heel strap spanning across the heel bone.

Abstract: A method for determining an extension of an object with an extensometer, and an extensometer for performing the method, include two legs being movable in a spreading plane and each having one end connected to a joint and another end connected to the object, with the extension spreading the legs apart. The spreading plane is oriented approximately parallel to a surface of the object between the other ends of the legs. Foot-plates, each being carried by a respective one of the legs, being oriented in the spreading plane and having a region projecting beyond the other ends of the legs, are fastened to the object at the region.