Medical Definition of ISOMETRIC. 1. : of, relating to, or characterized by equality of measure; especially: relating to or being a crystallographic system characterized by three equal axes at right angles. 2.
ALSO READ: Diet for Abs: Foods for Six Packs Abs. Muscle Building: Worst Foods for Abs #2. Commercial peanut butter: Peanut butter is one of the best foods you can consume if you want to build muscle, due to its high protein content. Peanut butter is also a great post workout snack.
Choose a diet consisting of lean protein and complex carbohydrates to help rebuild muscle. The U.S. Department of Agriculture suggests that men consume between 5.5-6.5 ounces of lean protein per day, while women consume between 5-5.5 ounces of lean protein per day.