Estimation model of the Quadriceps Muscle Cross-Sectional Area and Volume by using Anthropometric Parameters of Thigh in Old and Young Men

Background & Assessment of quadriceps muscle cross-section area and volume is of great diagnostic value. The purpose of this study was to provide a model to predict quadriceps muscle cross-section area and volume based on anthropometric parameters in old and young men.
101 sedentary and health male subjects (52 old men aged 50 to 70 and 49 young men aged 20 to 49) participated in this study. Computed tomography imaging scans as basic method and thigh anthropometric parameters as predictor variable were taken from thigh. Multiple regressions was used to designing estimation models.
A significant correlation between criterion variable with predictor variable was shown (P≤0.05). Regression model to estimate muscle volume was -0/125(TTC)2 (TTC) �泥(L) -39/895(TSF×10-1) -2639/144 in the elderly subjects and -0/295(TTC)2 -88/217(TTC) �(L) -53/908(TSF×10-1) 㛿黽 in the young subjects. In these models, the TCC means the total tight circumference in three areas of upper, middle and lower to centimeter, the L means thigh length in centimeter and the TSF means skinfold thickness in three areas of upper, middle and lower in millimeter in the anterior region of the thigh. The correlation coefficient and standard error of the estimate was 0/781 and 5/195 percent respectively for the elderly subjects and 0/845 and 3/169 percent respectively for the young subjects.
It seem that results are provide relatively valid models for estimating the cross section area and volume of quadriceps based on anthropometric variables in young and old men, that can useful for research in the field of clinical, exercise physiology and science.