AXIOM SP - Visco Wheelchair cushion

Axiom SP Visco is designed to provide increased immersion, allowing the trochanters to bear an effective load. This improves stability by widening the base of support and reduces the load the tissue that supports the Ischial Tuberosities must bear. A thick section of a specially designed Viscoelastic foam deforms to immerse and envelop the Ischial Tuberosities. Using anthropometric design, this section also has two small areas where foam is removed under the Ischial Tuberosities to facilitate immersion. Viscoelastic material is both viscous (changes shape slowly) and elastic (it returns to its original shape). It deforms and returns to shape very slowly. There is a significant lag between when you deform a viscoelastic foam and when it returns to shape. Because energy is effectively absorbed and dissipated during the time lag there is less reaction force pushing back after deformation.