超音波測定法による筋の単位面積あたりの筋力の算出

概要

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The strength per unit area of the muscle was calculated in 245 healthy human subjects, including 119 male and 126 female by means of the ultrasonic photography of the cross-section of the acting muscle bundle, together with the measurement of the muscle strength developed by the subject with maximum effort. The result was summarized as the following: 1). The ultrasonic method used in this work was possibly admitted as the best way to calculate the cross-sectional area of the muscle. 2). The arm strength was fairly proportional to the cross-sectional area of the flexor of the upper arm regardless of age and sex. 3). The strength per unit cross-sectional area of flexor of the upper arm was 6.3kg/cm^2 in the average, standard deviation of O.81kg/cm^2 at extended position. When cross-sectional area of muscle was measured at flexed position of the forearm the strength per unit area was calculated to be 4.7kg/cm^2. 4). As to the individual variation, the strength per unit area was distributed in a range from 4kg/cm^2 to 8kg/cm^2. 5). The strength per unit cross-sectional area was almost the same in male and female regardless of age.
社団法人日本体育学会の論文
1969-09-30