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.
It is: Half your weight (in pounds) is how many ounces of water you should consume every day. So, for example, if you weigh 180 pounds, your goal would be to drink 90 ounces of water per day. It's simple, it's easy to remember, and it seems to work for most people.t is: Half your weight (in pounds) is how many ounces of water you should consume every day. So, for example, if you weigh 180 pounds, your goal would be to drink 90 ounces of water per day. It's simple, it's easy to remember, and it seems to work for most people.