Ultrasound: This is a form of therapy where high frequency sound waves and transmitted into the body with the
purpose of heating injured internal structures. The purpose of ultrasound is to decrease pain and muscle
Underwater Weighing: A technique for estimating body fat. An individual is placed in a tank, underwater, and
weighed and then is weighed again in a normal state out of the water. By comparing the underwater weight with
their land weight, a very good measure of body fat can be determined.
Uninsured Motorist Coverage: A type of insurance coverage that protects you by paying for bodily injury you, a
family member or others in your car receive when an injury is caused by an uninsured, underinsured or
Unsaturated Fat: A fat that is liquid at room temperature is known as an unsaturated fat. The two types of
unsaturated fats are polyunsaturated fats, and monounsaturated fats. Sources of unsaturated fats include most
nuts, olives, avocados, and fatty fish such as salmon. Vegetable cooking oils are also considered unsaturated
Upper Cervical Specific: These techniques focus on the relationship between the upper cervical spine or neck
and its influence on the central nervous system and brain stem function. It is this connection that affects every
aspect of human function from the feeling sensations in your fingers to regulating hormones and controlling
Upper Extremity: The upper limb or upper extremity is the region extending from the deltoid region to the hand. It
includes the shoulder girdle, arm, forearm, wrist and hand.
Usual and Customary Fee: The usual and customary fee is the fee determined by insurance companies to be
what is typically or usually charged for a service in a particular geographic area. This was developed to prevent
providers from charging outrageous prices for services, by determining acceptable fees based on local
competition. This also compensates for different operating costs in different parts of the country.
Usual Fee: This is the standard fee that a doctor charges for a specific treatment or service.