Coastal, an F 1 hybrid of Tift common bermuda and a bermudagrass introduced from Asia, was released more than 55 years ago and has been established for hay and grazing on approximately 15 million acres in the southern United States.
Although pedometers are widely used to measure physical activity by counting the number of steps a person takes, they canât measure exercise intensity. In the lab, exercise intensity is commonly determined by measuring the amount of oxygen taken in by the body during exercise, known as oxygen uptake.
There are two basic ways to measure exercise intensity: 1  How you feel. 2  Exercise intensity is a subjective measure of how hard physical activity feels to you while you're doing it â your perceived exertion. 3  Your perceived level of exertion may be different from what someone else feels doing the same exercise.