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.
Mathematics, science and technology. 1  Cosine, a trigonometric function. 2  COS cells, a cell line used by biologists. 3  Carbonyl sulfide, (COS) a chemical compound.  Cobalt sulfide, (CoS) a chemical 1  compound. Class of service (CoS), a 3 bit field within a layer two Ethernet frame header defined by IEEE 802. 1p.