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January 5, 1957


JAMA. 1957;163(1):68. doi:10.1001/jama.1957.02970360070019

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To the Editor:—  A recent article, in the Nov. 17, 1956, issue of The Journal, page 1117, by Karpovich and Hale related that warm-up had no appreciable effect on athletic performance. It should, I think, be emphasized that their results were based on the study of track men. I believe, however, that this article may be interpreted by many, particularly by the lay press, that the warm-up has little, if any, value in this sport. Indeed, I have already seen this interpretation of the article in one of our local newspapers. In working with weight-lifters, basketball players, and baseball players, I am certain that a warm-up not only is helpful in bettering performance but, much more important, is essential in preventing injuries. I have personally witnessed arm injuries in baseball players from pitching without warm-up and have witnessed several injuries among weight-lifters who have failed to warm up. In the

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