Equations of Abe et al for Estimating Total and Regional Skeletal Muscle Mass in Young Japanese Adults

Description

Abe et al used magnetic resonance imaging to evaluate skeletal muscle mass in young, health Japanese adults. They developed a number of equations for describing its regional distribution. The authors are from Tokyo Metropolitan University, Schering-Plough Research Institute (Kenilworth, New Jersey) and Waseda University (Saitama, Japan).

total skeletal muscle mass in kilograms in young Japanese males =

= (0.51 * (fat free mass in kg)) - 5.7

total skeletal muscle mass in kilograms in young Japanese females =

= (0.55 * (fat free mass in kg)) - 9.0

skeletal muscle in the trunk in kilograms =

= (0.48 * (total skeletal muscle mass)) - 1.0

skeletal muscle in the upper legs in kilograms =

= (0.33 * (total skeletal muscle mass)) + 0.5

skeletal muscle in the lower legs in kilograms =

= (0.07 * (total skeletal muscle mass)) + 0.8

skeletal muscle in the arms in kilograms =

= (0.11 * (total skeletal muscle mass)) - 0.3

The sum of the 4 regional muscle masses is about 100% of the total muscle mass.

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