If you do not meet the requirements view Secondary Evidence of US Citizenship. To order a Certified Copy of your birth certificate, click here. If you have ever had a US Passport and currently do not have proof of US citizenship, please request for a file search. Click here to request for a file search.
Lean Muscle Mass. Lean muscle is a concept related to lean body mass, which is the content of the body minus fat. Lean body mass is used to calculate basal metabolic rate.Lean muscle is less of a scientific term and more a term of art that refers to muscle that is independent of, and not obscured by, fat.ean Muscle Mass. Lean muscle is a concept related to lean body mass, which is the content of the body minus fat. Lean body mass is used to calculate basal metabolic rate.
The result is unlikely to be visible as a larger muscle, but rather a leaner, toned muscle. If you exercise enough and watch your diet, you will lose fat as you gain muscle. Overall, your legs can get smaller and leaner. If you lose enough fat weight, you begin to see the lean muscle defined. Body builders go on very strict diets so they have less body fat covering their muscles. But remember the marathon runners, they also have very low body fat but their leg muscles are not bulky.