Sich krank essen, trinken, sitzen: to become sick by eating, drinking, sitting too much. – A Complete Practical Grammar of the German Language (c.1805–1828) by Charl

I believe most distempers proceed from too much sitting still. РMarie de Rabutin-Chantal, letter to her daughter Fran̤oise-Marguerite de S̩vig

Workers at home who have aching backs and but one writing desk, and that a low one, will find great relief from writing in a standing position (if a recess is out the question), if only for fifteen minutes. My standing desk is a broad mantel shelf. – B.G.A., “Helpful Hints and Suggestions,” in The Writer, August 1887

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