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Niagara Falls, N. Y., May 17, 1905.
To the Editor
—Referring to your editorial in The Journal, April 29, p. 1374, I desire to call your attention to the fact that when a girl jumps the rope to break a record the count is only for the number of times that the rope swings under the feet. While the rope is passing over the head and back to the feet a half jump takes place, thus giving the child her balance for the next spring that will throw her feet high enough to clear the rope again. Thus, in order to clear the rope 250 or more times, the same number of half-jumps are required. The succession of rope-jumps has a peculiar jar about it that is a harmful exercise for the body when long continued. When we consider also the rhythmic movement that must of necessity take place to
McChesney WE. Skipping Rope Fatalities.. JAMA. 1905;XLIV(22):1792. doi:10.1001/jama.1905.02500490068016
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