![]() ![]() So, if you gain some weight and almost all of it is lean mass, you’ll have a very high p-ratio if you gain some weight and almost all of it is fat mass, you’ll have a very low p-ratio. In other words:Ĭhange in fat-free mass ÷ change in total body mass = p-ratio This approach quantifies the p-ratio as the proportion of weight that is gained (or lost) as fat-free mass, relative to the total change in body weight. ![]() You could use a more complicated equation to calculate a “true” p-ratio value that accounts for energy densities of fat mass and fat-free mass, but for the purposes of this article, we’ll adopt a simple and practical calculation that is more commonly used in the fitness world. Conceptually, p-ratios are pretty simple when you gain weight, some of the added weight will contribute to the body’s protein reserves (that is, some will be lean mass), and the rest will predominantly be stored as fat mass. If you follow the Stronger By Science Cinematic Universe, then you know we’ve been discussing p-ratios lately.
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