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.
The foods listed below are known to be among the most essential for muscle development. 1. Water-although this one isn't actually a food it certainly is the most important item on this list, as muscle tissue is comprised of over 75 percent water. 2.