After your workout, itâs time to refuel with: 1  Fluids. Drink water, of course. 2  Carbohydrates. You burn a lot of carbohydrates â the main fuel for your muscles â when you exercise. 3  Protein. Eat things with protein to help repair and grow your muscles, including a whole grain bagel, baked potato, peanut butter sandwich, etc.
inertia - (physics) the tendency of a body to maintain its state of rest or uniform motion unless acted upon by an external force. natural philosophy, physics - the science of matter and energy and their interactions; his favorite subject was physics.
In common usage, the term inertia may refer to an object's amount of resistance to change in velocity (which is quantified by its mass), or sometimes to its momentum, depending on the context.