The original study is a little confusing as there is very liittle information on any test methodology. I notice mention of a target age group of 45-70. In general that age group will be increasingly sedentary and thus predisposed to muscle wastage. Also, that there is no gain above basal levels (how could there be?).
So gain comes from reducing initial loss, but there's no quantification of this loss? How does it happen, to what degree, and in what time frame? In any case all we can do by this study is intake sufficient protein to negate loss, but loss is finite (relatively), so required intake is calculable, isn't it? That said, it's interesting if, for me, moot...
The practical implication of this conclusion is that protein nutrition can be improved by increasing the protein intake at breakfast and lunch and maintaining a high amount of protein intake with dinner, or increasing the amount of protein eaten with dinner if that is more convenient. Alternatively, replacing low quality proteins with high quality proteins, containing higher levels of a balanced essential amino acid mixture, will additionally stimulate protein anabolism.
...regular and increased EAA intake. Wonder where i've heard that before 