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.
Proteins that are great for building muscle include: 1  Red meat like beef, pork, lamb, venison, bison, etc. 2  Fish like tuna, salmon, swordfish, bass, trout, mackerel, etc. 3  Poultry breast, from chicken, turkey, duck, etc. 4  Eggs, especially egg whites.5  Dairy like milk, cheese, cottage cheese, yogurt, etc.roteins that are great for building muscle include: 1  Red meat like beef, pork, lamb, venison, bison, etc. 2  Fish like tuna, salmon, swordfish, bass, trout, mackerel, etc. 3  Poultry breast, from chicken, turkey, duck, etc. 4  Eggs, especially egg whites.