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.
Intensity is the amount of physical power, expressed as a percentage of maximum, the body uses in performing an activity. For example, it defines how hard the body has to work to walk a mile in 20 minutes or to play a game of tag.