Work of breathing Work of breathing Work of breathing (WOB) is the energy expended to inhale and exhale a breathing gas. It is usually expressed as work per unit volume, for example, joules/litre, or as a work rate (power), such as joules/min or equivalent units, as it is not particularly useful without a reference to volume or time. It can be calculated in terms of the pulmonary pressure multiplied by the change in pulmonary volume, or in terms of the oxygen consumption attributable to breathing. In a normal resting state the work of breathing constitutes about 5% of the total body oxygen consumption.
Work unit Work unit A unit or danwei () is the name given to a place of employment in the People's Republic of China. While the term "danwei" remains in use today it is more properly used to refer to a place of employment during the period when the Chinese economy was not as developed and more heavily reliant on welfare for access to long-term urban workers or when used in the context of one of state-owned enterprises. Prior to Deng Xiaoping's economic reforms, a work unit acted as the first step of a multi-tiered hierarchy linking each individual with the central