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.
Weight: Multiply your weight by two-thirds. That number, in ounces, is the bare minimum amount of water you should be drinking. For example, a 160-pound person should drink at least 107 ounces a day. This might be different than your gender-based recommendation, and thatâs okay. Go with the highest amount.