Natyashastra
विकूणनं च गात्रस्य जानुनोश्च विमर्दनम् । स्थूलस्यापि तु कर्तव्या गतिर्देहानुकर्षिणी ॥ ११९॥
There should be twisting of the body and rubbing of the knees, and the Gait of a corpulent person should indicate dragging of the body with effort.
english translation
vikUNanaM ca gAtrasya jAnunozca vimardanam । sthUlasyApi tu kartavyA gatirdehAnukarSiNI ॥ 119॥
hk transliteration by Sanscript