concentric contraction, a common form of muscle contraction that occurs in rhythmic activities when the muscle fibers shorten as tension develops. Compare eccentric contraction. See also isotonic exercise.
1 Multiply by 2/3: Next you want to multiple your weight by 2/3 (or 67%) to determine how much water to drink daily. 2  For example, if you weighed 175 pounds you would multiple that by 2/3 and learn you should be drinking about 117 ounces of water every day.
How much you should actually drink is more individualized than you might think. The Institute of Medicine (IOM) currently recommends that men should drink at least 104 ounces of water per day, which is 13 cups. They say women should drink at least 72 ounces, which is 9 cups. Even still, the answer to exactly how much water you should drink isnât so simple.