. "12 Skeletal Muscle Markers." The Role of Protein and Amino Acids in Sustaining and Enhancing Performance. Washington, DC: The National Academies Press, 1999.
The following HTML text is provided to enhance online
readability. Many aspects of typography translate only awkwardly to HTML.
Please use the page image
as the authoritative form to ensure accuracy.
The Role of Protein and Amino Acids in Sustaining and Enhancing Performance
FIGURE 12-1 Anatomic skeletal muscle components at the first four body composition levels. The fifth level, whole body, is not shown.
TABLE 12-1 Proportional Contribution of Skeletal Muscle to the Body Weight of a Man at Different Stages of Development
Developmental Stage
Skeletal Muscle (% of Body Weight)
Birth
21
Weaning
18
Adolescent
36
Adult
45
Elderly
27
SOURCE: Adapted from Heymsfield et al., 1995.
TABLE 12-2 Distribution of Total Body Protein in the 70 kg Reference Man
