Foot Drop Causes. Generally speaking, the causes of foot drop are weakness or paralysis of the muscles needed to lift the foot. More specifically, the condition is most often caused by compression of the peroneal nerve that controls the anterior tibialis, or the muscles that lift the foot.
Measurement Definition. In science, a measurement is collection of quantitative or numerical data that describes a property of an object or event. A measurement is made by comparing a quantity with a standard unit.
A unit of measurement is a definite magnitude of a quantity, defined and adopted by convention or by law, that is used as a standard for measurement of the same quantity. Any other value of that quantity can be expressed as a simple multiple of the unit of measurement. For example, length is a physical quantity. The metre is a unit of length that represents a definite predetermined length. When we say 10 metres (or 10 m), we actually mean 10 times the definite predetermined length called metre. The definition, agreement, and practical use of units of measurement have played a crucial role in human endeavour from early ages up to this day. Different systems of units used to be very common.