Sitting kills, moving heals. – Joan Vernikos, c.2011

Desidiousness. Lat. sitting too much; slothfulness, idleness, carelessness. – A New Dictionary of the English Language by Charles Richardson, 1836

Reginald was nearly all day at his office, and half the night at his stand-up desk in his room. – Henry Kingsley, “Reginald Hetherege,” 1874

Helen started, and said she feared she had been sitting too long idle. – Maria Edgeworth (1768–1849), Helen, 1834