A man is mountain biking in California. Strength, power and muscular endurance are fitness components with many things in common. They require the application of muscular force to overcome resistance while in motion; they involve muscular contraction of a specific muscle or muscle group; and they are measurable components of fitness. Training programs can improve these fitness components.
1 An engineered flooring construction which is popular in parts of Europe is the hardwood lamella, softwood core laid perpendicular to the lamella, and a final backing layer of the same noble wood used for the lamella. 2  Other noble hardwoods are sometimes used for the back layer but must be compatible.
Made using three to four layers of wood glued together, engineered hardwood is often more durable, more environmentally friendly and can stand up better to changes in humidity as well as unruly children. The material costs are about the same as traditional hardwood, but the installs are faster and cheaper.