Runners training for a marathon can get a stress fracture if they. escalate their training too quickly. Stress fractures occur when too much weight or stress is put on a weakened bone. It's often the result of an imbalance in bone health caused by actions that outpace the body's natural bone rebuilding process. See Stress Fracture Risk Factors.
Definition of MDF (Medium-Density Fiberboard) Medium-density fiberboard (MDF). Definition. Medium-density fiberboard, or MDF, is a manufactured (engineered) wood product composed of wood fibers that are mixed with resin and wax and pressed into flat panels under high temperature and pressure. It is used much like plywood as a building material in residential and commercial construction.
MDF is an extremely common material used in furniture. However, a lot of shoppers who are confronted with the term have one of two reactions, both negative. They may not know what this material actually is at all. Or if they do, they may also write it off as substandard. I'll break down for you what MDF is and the positives and negatives of furniture made from it. MDF stands for Medium Density Fibreboard. Fibreboard, in all its densities, is made from wood fibres.