One of the primary elements affecting a runner's performance is their physical condition. Sprinting, by nature, is an explosive and highly anaerobic activity that engages fast-twitch muscle fibers. The ability to generate power quickly and efficiently is crucial for success. However, each athlete has a unique genetic makeup that influences their muscle composition, metabolic capabilities, and overall physical attributes.
An NRC of 0 means that the material absorbs no sound, while an NRC of 1 means that the material absorbs all sound. Mineral Fiber Ceilings typically have an NRC rating between 0.5 and 0.9, depending on the thickness and density of the tiles.