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KMID : 0378019790220020087
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New Medical Journal
1979 Volume.22 No. 2 p.87 ~ p.90
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Correlation between Blood Flow and Several Measurements of Forearm
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Abstract
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As in most other tissues or organs of the body, blood flow through skeletal muscles is highly related to the metabolic activities of the muscular tissues.
During rest, blood flow through skeletal muscle averages 4 to 7 ml. per minute per 100 grams of muscle. However, during extreme exercise this rate can increase as much as 15 to 20 fold, rising to 50 to 75 ml. per 100 grams of muscle. At rest, oxygen consumption is 0. 16 ml. per 100 grams of skeletal muscle. During very strenuous exercise, on the other hand,
oxygen intake can increase 8 to 12 times as large as the basal intake.
Blood flow through skeletal muscle is altered by changes in the various intrinsic factors such as PCO2, PO2i adenosine, osmolarity and inorganic phosphate and by the mechanical action of the contracting fibers as they compress the associated vessels.
Thus, the volume of blood flow through skeletal muscle of the forearm is expected to be proportional to the extent of the muscular development.
The present experiment was performed in order to clarify the correlation of forearm blood flow at rest versus circumference, volume, length and gripping power of the forearm, and body weight and height.
The results obtained are summarized as follows
1. Correlation coefficients of circumference and volume of the forearm to the blood flow were 0.38 (P<0.02), and 0.35 (P2. Correlation coefficients of gripping power and length of the forearm to the blood flow were 0.16 and 0.12, respectively.
3. Correlation coefficients of body weight and height to the forearm blood flow were 0.18 and 0.04, respectively.
4. Correlations of blood flow versus circumference and volume of the forearm were significant. All the others were not significant.
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