Instruction "Vito Acconci : Step Piece"

"An 18-inch stool is set up in my apartment and
used as a step. Each morning, during the
designated months, I step up and down the stool
at the rate of 30 steps a minute; each morning,
the activity lasts as long as I can perform it
without stopping. "
(Vito Acconci, 1970,
Avalanche, no. 6 (special issue: Vito Acconci)
(Fall 1972): 21. From Liz Kotz, An aesthetics of
the index, in Texte zur Kunst, 3/2008)