Natyashastra
एलकाक्रीडितैः पादैरुपर्युपरि पातितैः । तेषामेवानुगैर्हस्तैर्बीभत्से गतिरिष्यते ॥ ५६॥
The gait should be dreadful, with feet falling alternately up and down, accompanied by their hands in a similar manner.
english translation
elakAkrIDitaiH pAdairuparyupari pAtitaiH । teSAmevAnugairhastairbIbhatse gatiriSyate ॥ 56॥
hk transliteration by Sanscript