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.
Read on to calculate how much water you should be drinking each day based on your own unique needs. Are You Drinking Enough Water for Your Body Weight? According to the Mayo Clinic, men should generally drink about 13 cups of water a day, while women should aim for nine. But if you want to determine the exact amount you should be drinking by your body weight, it's easy to do.