抄録
In this study, the cross-sectional areas of the thigh and calf muscles were measured for approximately 800
participants, including the elderly requiring long-term care and the late-stage elderly. We examined the age-related
changes in the muscle areas that were excluded from the effects of body weight and height. Although the decreases
in age were different, the muscle areas decreased with age. It was suggested that the muscle areas of the late-stage
elderly were greatly decreased compared with those of the early-stage elderly. In addition, the process of decrease in
calf muscle area varies depending on gender. The present results are likely to show the standard values of age-related
decreases in muscle areas.
