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The National Agricultural Library is one of four national libraries of the United States, with locations in Beltsville, Maryland and Washington, D.C. It houses one of the world's largest and most accessible agricultural information collections and serves as the nexus for a national network of state land-grant and U.S. Department of Agriculture field libraries. In fiscal year 2011 (Oct 2010 through Sept 2011) NAL delivered more than 100 million direct customer service transactions.

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Journal Article

期刊文章

Biochemical composition of muscle in normal and semistarved human subjects: Relevance to anthropometric measurements  [1982]

Heymsfield, Steven B.; Stevens, Victoria; Noel, Robert; McManus, Clifford; et al.

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Extract: Anthropometric methods aimed at assessing muscle size in undernourished subjects assume a constant proportionality between the mass (i.e., size) and composition (specifically protein-energy content) of this tissue. This assumption was examined in 3 autopsy groups: controls (n=11, sudden traumatic death), early semistarvation (n=6, acute preterminal disease), and chronic semistarvation (n=34, severe weight loss over time). Results of semistarved groups were expressed relative to respective control value. Early semistarvation produced no detectable change in muscle mass, protein, or total energy content (per gram wet weight), although RNA and glycogen were -50 to -70% of control value. Chronic semistarvation caused muscle atrophy (-54.2%), but not all measured constituents were reduced to the same degree. Muscle per unit mass in chronic semistarvation reflect relatively more H2O and less protein and energy when compared to normal tissue. About 85 to 95% of muscle protein-energy loss can be detected by anthropometric measurements of muscle size; the remaining 5 to 15% depletion of protein and energy is masked by muscle compositional changes. Proper interpretation of anthropometric data requires an understanding of these unmeasured but important compositional differences in normal and semistarved muscle. (author/kbc)
来自期刊
American Journal of Clinical Nutrition (USA)
ISSN : 0002-9165

书目信息

语言:
English
类型:
Journal Article
自何时收录于AGRIS:
1983
卷:
36
期:
1
起始页:
131
结束页:
142
所有题名:
"Biochemical composition of muscle in normal and semistarved human subjects: Relevance to anthropometric measurements"@eng
其它:
"ill., charts. 30 ref"
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书目信息

语言:
English
类型:
Journal Article
自何时收录于AGRIS:
1983
卷:
36
期:
1
起始页:
131
结束页:
142
所有题名:
"Biochemical composition of muscle in normal and semistarved human subjects: Relevance to anthropometric measurements"@eng
其它:
"ill., charts. 30 ref"