Sciatica is a medical condition characterized by pain going down the leg from the lower back.[1] This pain may go down the back, outside, or front of the leg. Typically, symptoms are only on one side of the body. Certain causes, however, may result in pain on both sides.
respiratory quotient (RQ) the ratio of the volume of expired carbon dioxide to the volume of oxygen absorbed by the lungs per unit of time. Called also respiratory exchange ratio (above).
A respiratory rate, or breathing rate, is the number of breaths a person takes in one minute while at rest, and it can be measured by counting the number of times a person's chest rises and falls within one minute.he opposite of apnea is tachypnea, or rapid breathing. A faster than normal respiratory rate may be caused by the flu or a cold in children, and pneumonia and asthma may also cause an increase in the rate of respiration in people of all ages.