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.
Another muscle mass-building powerhouse that youâre probably already familiar with is salmon. Salmon has two vital ingredients for muscle mass, protein and Omega-3 fatty acids (DHA and EPA, to be exact), as well as vitamins D, B12, and niacin. The ingredients in this fish help prevent muscle breakdown, while also improving heart health.