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Editor's Correspondence
November 25, 2002

Sex Matters

Arch Intern Med. 2002;162(21):2490. doi:

In clinical research, sex matters. Extensive research demonstrates that differences between the physiology of men and women extend far beyond reproductive issues. Significant sex-based differences in responses to resistance and aerobic exercise training in healthy and diseased individuals have been well documented.1-5 There is, however, a significant gap in our knowledge about women's responses to resistance exercise.6 As a result, I was looking forward to reading the article by Vincent et al7 titled "Improved Cardiorespiratory Endurance Following 6 Months of Resistance Exercise in Elderly Men and Women." Unfortunately, I was disappointed to find no reference to sex whatsoever. Aside from the title, and a sentence in the "Methods" section of the abstract that lumped the study subjects together as "62 men and women," no further information is presented regarding the sex of the study participants. Table 1 ("Subject Characteristics") reports other demographic information but not the total number or the distribution of men and women between the study groups.

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