2006, Vol.19, No.4

Anatomy & Biological Anthropology 2023 KCI Impact Factor : 0.33

pISSN : 2671-5651 / eISSN : 2671-566X
https://journal.kci.go.kr/aba

The purpose in this study is to make a regression model for the prediction of skeletal muscle volume in thigh. For this purpose, men,14 and women,6 were included in this study. They were measured 22 independent variables by CT and anthropometry methods. CT Image analysis were performed with INFINITT, Rapidia 2.8, Korea. The results in this study are as following. There were not significant (P=.000) between CT-measured variables and predicted variables by anthropometry, excepting the difference (P=0.01) at thigh top muscle circumference. Therefore, many of variables could be applied with parameters for estimation equation by anthropometry. The estimation equation, obtained for thigh muscle volume using the predicted mid-thigh muscle circumference corrected by skinfold thickness and predicted total femur bone volume, was Y(Mtot)=127.4134*(X1)+18.7767*(X2)- 5998.62. Where, X1 is predicted mid-thigh muscle circumference and X2 is predicted total femur bone volume. R2 in this model is .97, and SEE is 123 mL, CV 3.6%. In conclusion, the determination of skeletal muscle volume in thigh can be highly validated with estimaton model in this study. Therefore it also be apply to predicting thigh muscle volume in korean adults.

In this study, cerebral functional laterality patterns of medical students in the year 2005 were compared with those in the year 1995. Questionnaires on the behavior patterns were asked, and the laterality patterns were classified as right hemispheric (R)-balanced hemispheric (B)-left hemispheric (L). 385 students were studied (210 male and 175 female). Of the 3 categories, male students showed the patterns of R (42.8%), B (31.9%) and L (25.3%). Female students showed R (45.2%), B (30.9%) and L (23.9%). As the above result shows, laterality patterns of male and female were similar. The above data were compared with the another data in the article reported in 1995. Previous report showed that R (63.5%), B (24.9%) and L (11.6%) in the male students, and R (49.0%), B (22.4%) and L (28.6%) in female students, respectively. From the above results, It was suggested that cerebral laterality patterns of medical students in the year 2005 shifted toward left, but it still remained 42~45% in right hemispheric as contrast to 24~25% in left hemispheric. Hemispheric shift was interpreted as that, it may be the result of student’s adaptative or competitive activities in the fast changing social environment.

The aim of this study was to investigate histological composition (ratio of anulus fibrosus, cartilage endplate, and nucleus pulposus) of the herniated lumbar intervertebral disc fragments. The relative percentage of anulus fibrosus, cartilage endplate, and nucleus pulposus was examined in the herniated interverterbral disc fragments. The herniated intervertebral discs took out from the 31 patients were stained with H-E. The stained tissues were photographed, and the histological composition of the herniated intervertebral discs was analyzed after marking 3 components on the photograph with microscopic observation. The composition of the herniated lumbar intervertebral disc is 50.7% of nucleus pulposus, 41.3% of anulus fibrosus, and 8.0% of cartilage endplate. The proportion of the endplate in the herniated intervertebral disc in male was tend to be higher than that in female, and the proportion of the nucleus pulposus was tend to be decreased with aging, however, fail to reach statistical significance. This result may provide fundamental information for accessing clinical symptoms including pain in lumbar vertebral disc herniation.