Arm muscle indicators and creatinine excretion in children
1982
Trowbridge, Frederick L. | Hiner, Cherie D. | Robertson, Alastair D.
Extract: The ability of anthropometric measurements including arm muscle area (AMA) calculated from arm circumference and triceps skinfold thickness, to estimate creatinine excretion as an index of muscle mass was tested in 14 fully active children, (2-6 yr) in a residential care facility. The children were placed on a meat and fish-free diet for 36 to 48 hours before the determination of mean creatinine excretion during three 24-hour urinary collections. Results indicated highly significant correlations between mean creatinine excretion and height, weight, and arm circumference. However, AMA had the highest correlation with creatinine excretion of any anthropometric variable used. Step-wise multiple-regression analysis indicated that including height or weight with AMA did not significantly improve the estimation of creatinine excretion, but that weight for height added significantly to explained variance. It appears that AMA can provide a useful index of body muscle as reflected in urinary creatinine excretion in young children. (author)
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