There are two basic ways to measure exercise intensity: How you feel. Exercise intensity is a subjective measure of how hard physical activity feels to you while you're doing it â your perceived exertion. Your perceived level of exertion may be different from what someone else feels doing the same exercise.
cus. 1  third-person singular present indicative form of cosir. 2  second-person singular imperative form of cosir.
Cosine, a trigonometric function. COS cells, a cell line used by biologists. Carbonyl sulfide, (COS) a chemical compound. Cobalt sulfide, (CoS) a chemical compound. Class of service (CoS), a 3 bit field within a layer two Ethernet frame header defined by IEEE 802.1p. Class of service (COS), a configuration parameter in legacy telephone systems.