In order to investigate anthropometric and physical status of Keio University students, skeletal muscle thickness, adipose tissue thickness, circumference of extremities, and body weight were measured in 90 male and 75 female student volunteers. By using ultrasonography, skeletal muscle and adipose tissue thickness were measured at anterior and posterior aspects of upper arm and thigh, abdomen and subscapular regions. In males, the extremity circumference showed a stronger correlation with the skeletal muscle thickness than the adipose tissue thickness, whereas in females, the converse was observed. In male and female volunteers, the adipose tissue thickness was more strongly correlated among the different sites of measurement than the skeletal muscle thickness. No significant correlation between skeletal muscle thickness: and adipose tissue thickness was observed among male volunteers in any of the measurement sites. However, in the female volunteers, the skeletal muscle thickness showed a correlation with the adipose tissue thickness at the anterior aspect of the upper arm and at the abdomen.
 The present study discusses the anthropometric and physical status of the Keio University students. However, the sample size was not sufficient for us to conclude that the subjects were representative of entire student population at Keio University. Besides, the present study only performed a cross-sectional measurement. Future studies will have to be performed to address these issues.