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.
idf - Computer Definition. A distribution frame that serves as an intermediate point of inside cable and wire interconnection between the main distribution frame (MDF) and the terminal blocks or terminal outlets. See also MDF.
The MDF (medium density fiberboard) we use is a high grade, composite material commonly used in fine cabinetry and furniture. MDF is a great choice for many painted millwork applications â it mills well, it is strong and is more stable than solid wood. MDF is not 'particle' board or a low density fiber board sometimes used in lower grade cabinets.