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.
MDF is an excellent substrate for veneers and laminates, and is consistent in strength and size. MDF is made from 100% recycled wood content and is available in a no added urea formaldehyde (NAUF), Ultra-lite and fire retardant formats. All MDF distributed by Rugby is CARB certified (California). Specific locations also stock FSC and NAUF certified MDF products.