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In the original contribution titled "The Effects of Limitation of Activity Upon the Human Body," published June 6 (196:825-830), the legend for Fig 3 (p 827) contains a significant error. The percentage in the second sentence, "Demonstrable fatigue occurs following ten minutes of one-second contractions at 50% of maximal strength alternating with one-second rest periods," should properly read "... at 5% of maximal strength...." As the emphasis of the figure and the section on muscular endurance was that fatigue occurs when only a very small percentage of muscular strength is used, the error in the percentage may falsely reassure the reader that fatigue occurs only when heavy work is done.
Percentage Error Is Misleading. JAMA. 1966;198(3):252. doi:10.1001/jama.1966.03110160080025