The Collaborative International Dictionary of English v.0.48:

Delsarte \Del*sarte"\, n., or Delsarte system \Delsarte system\
   A system of calisthenics patterned on the theories of
   Fran[,c]ois Delsarte (1811 -- 71), a French teacher of
   dramatic and musical expression.
   [Webster 1913 Suppl.]